diff options
author | 2017-04-25 03:31:15 -0700 | |
---|---|---|
committer | 2017-05-22 06:48:08 +0000 | |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/roms/ipxe/src/arch/i386/interface | |
parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/roms/ipxe/src/arch/i386/interface')
31 files changed, 0 insertions, 9611 deletions
diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/apm.c b/qemu/roms/ipxe/src/arch/i386/interface/pcbios/apm.c deleted file mode 100644 index 50b19cb81..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/apm.c +++ /dev/null @@ -1,112 +0,0 @@ -/* - * Copyright (C) 2013 Marin Hannache <ipxe@mareo.fr>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** - * @file - * - * Advanced Power Management - * - */ - -#include <errno.h> -#include <realmode.h> -#include <ipxe/reboot.h> - -/** - * Power off the computer using APM - * - * @ret rc Return status code - */ -static int apm_poweroff ( void ) { - uint16_t apm_version; - uint16_t apm_signature; - uint16_t apm_flags; - uint16_t carry; - - /* APM check */ - __asm__ __volatile__ ( REAL_CODE ( "int $0x15\n\t" - "adc %%edx,0\n\t" ) - : "=a" ( apm_version ), "=b" ( apm_signature ), - "=c" ( apm_flags ), "=d" ( carry ) - : "a" ( 0x5300 ), "b" ( 0x0000 ), - "d" ( 0x0000 ) ); - if ( carry ) { - DBG ( "APM not present\n" ); - return -ENOTSUP; - } - if ( apm_signature != 0x504d ) { /* signature 'PM' */ - DBG ( "APM not present\n" ); - return -ENOTSUP; - } - if ( apm_version < 0x0101 ) { /* Need version 1.1+ */ - DBG ( "APM 1.1+ not supported\n" ); - return -ENOTSUP; - } - if ( ( apm_flags & 0x8 ) == 0x8 ) { - DBG ( "APM power management disabled\n" ); - return -EPERM; - } - DBG2 ( "APM check completed\n" ); - - /* APM initialisation */ - __asm__ __volatile__ ( REAL_CODE ( "int $0x15\n\t" - "adc %%edx,0\n\t" ) - : "=d" ( carry ) - : "a" ( 0x5301 ), "b" ( 0x0000 ), - "d" ( 0x0000 ) ); - if ( carry ) { - DBG ( "APM initialisation failed\n" ); - return -EIO; - } - DBG2 ( "APM initialisation completed\n" ); - - /* Set APM driver version */ - __asm__ __volatile__ ( REAL_CODE ( "int $0x15\n\t" - "adc %%edx,0\n\t" ) - : "=d" ( carry ) - : "a" ( 0x530e ), "b" ( 0x0000 ), - "c" ( 0x0101 ), "d" ( 0x0000 ) ); - if ( carry ) { - DBG ( "APM setting driver version failed\n" ); - return -EIO; - } - DBG2 ( "APM driver version set\n" ); - - /* Setting power state to off */ - __asm__ __volatile__ ( REAL_CODE ( "int $0x15\n\t" - "adc %%edx,0\n\t" ) - : "=d" ( carry ) - : "a" ( 0x5307 ), "b" ( 0x0001 ), - "c" ( 0x0003 ), "d" ( 0x0000) ); - if ( carry ) { - DBG ( "APM setting power state failed\n" ); - return -ENOTTY; - } - - /* Should never happen */ - return -ECANCELED; -} - -PROVIDE_REBOOT ( pcbios, poweroff, apm_poweroff ); diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/bios_nap.c b/qemu/roms/ipxe/src/arch/i386/interface/pcbios/bios_nap.c deleted file mode 100644 index f1ba8297b..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/bios_nap.c +++ /dev/null @@ -1,16 +0,0 @@ -#include <ipxe/nap.h> -#include <realmode.h> - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** - * Save power by halting the CPU until the next interrupt - * - */ -static void bios_cpu_nap ( void ) { - __asm__ __volatile__ ( "sti\n\t" - "hlt\n\t" - "cli\n\t" ); -} - -PROVIDE_NAP ( pcbios, cpu_nap, bios_cpu_nap ); diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/bios_reboot.c b/qemu/roms/ipxe/src/arch/i386/interface/pcbios/bios_reboot.c deleted file mode 100644 index 10a1ecb89..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/bios_reboot.c +++ /dev/null @@ -1,52 +0,0 @@ -/* - * Copyright (C) 2010 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** @file - * - * Standard PC-BIOS reboot mechanism - * - */ - -#include <ipxe/reboot.h> -#include <realmode.h> -#include <bios.h> - -/** - * Reboot system - * - * @v warm Perform a warm reboot - */ -static void bios_reboot ( int warm ) { - uint16_t flag; - - /* Configure BIOS for cold/warm reboot */ - flag = ( warm ? BDA_REBOOT_WARM : 0 ); - put_real ( flag, BDA_SEG, BDA_REBOOT ); - - /* Jump to system reset vector */ - __asm__ __volatile__ ( REAL_CODE ( "ljmp $0xf000, $0xfff0" ) : : ); -} - -PROVIDE_REBOOT ( pcbios, reboot, bios_reboot ); diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/bios_smbios.c b/qemu/roms/ipxe/src/arch/i386/interface/pcbios/bios_smbios.c deleted file mode 100644 index a8c0fc325..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/bios_smbios.c +++ /dev/null @@ -1,65 +0,0 @@ -/* - * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <stdint.h> -#include <string.h> -#include <errno.h> -#include <assert.h> -#include <ipxe/uaccess.h> -#include <ipxe/smbios.h> -#include <realmode.h> -#include <pnpbios.h> - -/** @file - * - * System Management BIOS - * - */ - -/** - * Find SMBIOS - * - * @v smbios SMBIOS entry point descriptor structure to fill in - * @ret rc Return status code - */ -static int bios_find_smbios ( struct smbios *smbios ) { - struct smbios_entry entry; - int rc; - - /* Scan through BIOS segment to find SMBIOS entry point */ - if ( ( rc = find_smbios_entry ( real_to_user ( BIOS_SEG, 0 ), 0x10000, - &entry ) ) != 0 ) - return rc; - - /* Fill in entry point descriptor structure */ - smbios->address = phys_to_user ( entry.smbios_address ); - smbios->len = entry.smbios_len; - smbios->count = entry.smbios_count; - smbios->version = SMBIOS_VERSION ( entry.major, entry.minor ); - - return 0; -} - -PROVIDE_SMBIOS ( pcbios, find_smbios, bios_find_smbios ); diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/bios_timer.c b/qemu/roms/ipxe/src/arch/i386/interface/pcbios/bios_timer.c deleted file mode 100644 index 3299c9aae..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/bios_timer.c +++ /dev/null @@ -1,70 +0,0 @@ -/* - * Copyright (C) 2008 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** @file - * - * BIOS timer - * - */ - -#include <ipxe/timer.h> -#include <realmode.h> -#include <bios.h> - -/** - * Get current system time in ticks - * - * @ret ticks Current time, in ticks - * - * Use direct memory access to BIOS variables, longword 0040:006C - * (ticks today) and byte 0040:0070 (midnight crossover flag) instead - * of calling timeofday BIOS interrupt. - */ -static unsigned long bios_currticks ( void ) { - static int days = 0; - uint32_t ticks; - uint8_t midnight; - - /* Re-enable interrupts so that the timer interrupt can occur */ - __asm__ __volatile__ ( "sti\n\t" - "nop\n\t" - "nop\n\t" - "cli\n\t" ); - - get_real ( ticks, BDA_SEG, 0x006c ); - get_real ( midnight, BDA_SEG, 0x0070 ); - - if ( midnight ) { - midnight = 0; - put_real ( midnight, BDA_SEG, 0x0070 ); - days += 0x1800b0; - } - - return ( days + ticks ); -} - -PROVIDE_TIMER_INLINE ( pcbios, udelay ); -PROVIDE_TIMER ( pcbios, currticks, bios_currticks ); -PROVIDE_TIMER_INLINE ( pcbios, ticks_per_sec ); diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/biosint.c b/qemu/roms/ipxe/src/arch/i386/interface/pcbios/biosint.c deleted file mode 100644 index 3b8e80438..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/biosint.c +++ /dev/null @@ -1,92 +0,0 @@ -#include <errno.h> -#include <realmode.h> -#include <biosint.h> - -/** - * @file BIOS interrupts - * - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** - * Hook INT vector - * - * @v interrupt INT number - * @v handler Offset within .text16 to interrupt handler - * @v chain_vector Vector for chaining to previous handler - * - * Hooks in an i386 INT handler. The handler itself must reside - * within the .text16 segment. @c chain_vector will be filled in with - * the address of the previously-installed handler for this interrupt; - * the handler should probably exit by ljmping via this vector. - */ -void hook_bios_interrupt ( unsigned int interrupt, unsigned int handler, - struct segoff *chain_vector ) { - struct segoff vector = { - .segment = rm_cs, - .offset = handler, - }; - - DBG ( "Hooking INT %#02x to %04x:%04x\n", - interrupt, rm_cs, handler ); - - if ( ( chain_vector->segment != 0 ) || - ( chain_vector->offset != 0 ) ) { - /* Already hooked; do nothing */ - DBG ( "...already hooked\n" ); - return; - } - - copy_from_real ( chain_vector, 0, ( interrupt * 4 ), - sizeof ( *chain_vector ) ); - DBG ( "...chaining to %04x:%04x\n", - chain_vector->segment, chain_vector->offset ); - if ( DBG_LOG ) { - char code[64]; - copy_from_real ( code, chain_vector->segment, - chain_vector->offset, sizeof ( code ) ); - DBG_HDA ( *chain_vector, code, sizeof ( code ) ); - } - - copy_to_real ( 0, ( interrupt * 4 ), &vector, sizeof ( vector ) ); - hooked_bios_interrupts++; -} - -/** - * Unhook INT vector - * - * @v interrupt INT number - * @v handler Offset within .text16 to interrupt handler - * @v chain_vector Vector containing address of previous handler - * - * Unhooks an i386 interrupt handler hooked by hook_i386_vector(). - * Note that this operation may fail, if some external code has hooked - * the vector since we hooked in our handler. If it fails, it means - * that it is not possible to unhook our handler, and we must leave it - * (and its chaining vector) resident in memory. - */ -int unhook_bios_interrupt ( unsigned int interrupt, unsigned int handler, - struct segoff *chain_vector ) { - struct segoff vector; - - DBG ( "Unhooking INT %#02x from %04x:%04x\n", - interrupt, rm_cs, handler ); - - copy_from_real ( &vector, 0, ( interrupt * 4 ), sizeof ( vector ) ); - if ( ( vector.segment != rm_cs ) || ( vector.offset != handler ) ) { - DBG ( "...cannot unhook; vector points to %04x:%04x\n", - vector.segment, vector.offset ); - return -EBUSY; - } - - DBG ( "...restoring to %04x:%04x\n", - chain_vector->segment, chain_vector->offset ); - copy_to_real ( 0, ( interrupt * 4 ), chain_vector, - sizeof ( *chain_vector ) ); - - chain_vector->segment = 0; - chain_vector->offset = 0; - hooked_bios_interrupts--; - return 0; -} diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/int13.c b/qemu/roms/ipxe/src/arch/i386/interface/pcbios/int13.c deleted file mode 100644 index f0450da90..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/int13.c +++ /dev/null @@ -1,1993 +0,0 @@ -/* - * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <stdint.h> -#include <stdlib.h> -#include <limits.h> -#include <byteswap.h> -#include <errno.h> -#include <assert.h> -#include <ipxe/list.h> -#include <ipxe/blockdev.h> -#include <ipxe/io.h> -#include <ipxe/open.h> -#include <ipxe/uri.h> -#include <ipxe/process.h> -#include <ipxe/xfer.h> -#include <ipxe/retry.h> -#include <ipxe/timer.h> -#include <ipxe/acpi.h> -#include <ipxe/sanboot.h> -#include <ipxe/device.h> -#include <ipxe/pci.h> -#include <ipxe/iso9660.h> -#include <ipxe/eltorito.h> -#include <realmode.h> -#include <bios.h> -#include <biosint.h> -#include <bootsector.h> -#include <int13.h> - -/** @file - * - * INT 13 emulation - * - * This module provides a mechanism for exporting block devices via - * the BIOS INT 13 disk interrupt interface. - * - */ - -/** - * Overall timeout for INT 13 commands (independent of underlying device - * - * Underlying devices should ideally never become totally stuck. - * However, if they do, then the INT 13 mechanism provides no means - * for the caller to cancel the operation, and the machine appears to - * hang. Use an overall timeout for all commands to avoid this - * problem and bounce timeout failures to the caller. - */ -#define INT13_COMMAND_TIMEOUT ( 15 * TICKS_PER_SEC ) - -/** An INT 13 emulated drive */ -struct int13_drive { - /** Reference count */ - struct refcnt refcnt; - /** List of all registered drives */ - struct list_head list; - - /** Block device URI */ - struct uri *uri; - /** Underlying block device interface */ - struct interface block; - - /** BIOS in-use drive number (0x00-0xff) */ - unsigned int drive; - /** BIOS natural drive number (0x00-0xff) - * - * This is the drive number that would have been assigned by - * 'naturally' appending the drive to the end of the BIOS - * drive list. - * - * If the emulated drive replaces a preexisting drive, this is - * the drive number that the preexisting drive gets remapped - * to. - */ - unsigned int natural_drive; - - /** Block device capacity */ - struct block_device_capacity capacity; - /** INT 13 emulated blocksize shift - * - * To allow for emulation of CD-ROM access, this represents - * the left-shift required to translate from INT 13 blocks to - * underlying blocks. - */ - unsigned int blksize_shift; - - /** Number of cylinders - * - * The cylinder number field in an INT 13 call is ten bits - * wide, giving a maximum of 1024 cylinders. Conventionally, - * when the 7.8GB limit of a CHS address is exceeded, it is - * the number of cylinders that is increased beyond the - * addressable limit. - */ - unsigned int cylinders; - /** Number of heads - * - * The head number field in an INT 13 call is eight bits wide, - * giving a maximum of 256 heads. However, apparently all - * versions of MS-DOS up to and including Win95 fail with 256 - * heads, so the maximum encountered in practice is 255. - */ - unsigned int heads; - /** Number of sectors per track - * - * The sector number field in an INT 13 call is six bits wide, - * giving a maximum of 63 sectors, since sector numbering - * (unlike head and cylinder numbering) starts at 1, not 0. - */ - unsigned int sectors_per_track; - - /** Drive is a CD-ROM */ - int is_cdrom; - /** Address of El Torito boot catalog (if any) */ - unsigned int boot_catalog; - - /** Underlying device status, if in error */ - int block_rc; - /** Status of last operation */ - int last_status; -}; - -/** Vector for chaining to other INT 13 handlers */ -static struct segoff __text16 ( int13_vector ); -#define int13_vector __use_text16 ( int13_vector ) - -/** Assembly wrapper */ -extern void int13_wrapper ( void ); - -/** Dummy floppy disk parameter table */ -static struct int13_fdd_parameters __data16 ( int13_fdd_params ) = { - /* 512 bytes per sector */ - .bytes_per_sector = 0x02, - /* Highest sectors per track that we ever return */ - .sectors_per_track = 48, -}; -#define int13_fdd_params __use_data16 ( int13_fdd_params ) - -/** List of registered emulated drives */ -static LIST_HEAD ( int13s ); - -/** - * Equipment word - * - * This is a cached copy of the BIOS Data Area equipment word at - * 40:10. - */ -static uint16_t equipment_word; - -/** - * Number of BIOS floppy disk drives - * - * This is derived from the equipment word. It is held in .text16 to - * allow for easy access by the INT 13,08 wrapper. - */ -static uint8_t __text16 ( num_fdds ); -#define num_fdds __use_text16 ( num_fdds ) - -/** - * Number of BIOS hard disk drives - * - * This is a cached copy of the BIOS Data Area number of hard disk - * drives at 40:75. It is held in .text16 to allow for easy access by - * the INT 13,08 wrapper. - */ -static uint8_t __text16 ( num_drives ); -#define num_drives __use_text16 ( num_drives ) - -/** - * Calculate INT 13 drive sector size - * - * @v int13 Emulated drive - * @ret blksize Sector size - */ -static inline size_t int13_blksize ( struct int13_drive *int13 ) { - return ( int13->capacity.blksize << int13->blksize_shift ); -} - -/** - * Calculate INT 13 drive capacity - * - * @v int13 Emulated drive - * @ret blocks Number of blocks - */ -static inline uint64_t int13_capacity ( struct int13_drive *int13 ) { - return ( int13->capacity.blocks >> int13->blksize_shift ); -} - -/** - * Calculate INT 13 drive capacity (limited to 32 bits) - * - * @v int13 Emulated drive - * @ret blocks Number of blocks - */ -static inline uint32_t int13_capacity32 ( struct int13_drive *int13 ) { - uint64_t capacity = int13_capacity ( int13 ); - return ( ( capacity <= 0xffffffffUL ) ? capacity : 0xffffffff ); -} - -/** - * Test if INT 13 drive is a floppy disk drive - * - * @v int13 Emulated drive - * @ret is_fdd Emulated drive is a floppy disk - */ -static inline int int13_is_fdd ( struct int13_drive *int13 ) { - return ( ! ( int13->drive & 0x80 ) ); -} - -/** An INT 13 command */ -struct int13_command { - /** Status */ - int rc; - /** INT 13 drive */ - struct int13_drive *int13; - /** Underlying block device interface */ - struct interface block; - /** Command timeout timer */ - struct retry_timer timer; -}; - -/** - * Record INT 13 drive capacity - * - * @v command INT 13 command - * @v capacity Block device capacity - */ -static void int13_command_capacity ( struct int13_command *command, - struct block_device_capacity *capacity ) { - memcpy ( &command->int13->capacity, capacity, - sizeof ( command->int13->capacity ) ); -} - -/** - * Close INT 13 command - * - * @v command INT 13 command - * @v rc Reason for close - */ -static void int13_command_close ( struct int13_command *command, int rc ) { - intf_restart ( &command->block, rc ); - stop_timer ( &command->timer ); - command->rc = rc; -} - -/** - * Handle INT 13 command timer expiry - * - * @v timer Timer - */ -static void int13_command_expired ( struct retry_timer *timer, - int over __unused ) { - struct int13_command *command = - container_of ( timer, struct int13_command, timer ); - - int13_command_close ( command, -ETIMEDOUT ); -} - -/** INT 13 command interface operations */ -static struct interface_operation int13_command_op[] = { - INTF_OP ( intf_close, struct int13_command *, int13_command_close ), - INTF_OP ( block_capacity, struct int13_command *, - int13_command_capacity ), -}; - -/** INT 13 command interface descriptor */ -static struct interface_descriptor int13_command_desc = - INTF_DESC ( struct int13_command, block, int13_command_op ); - -/** - * Open (or reopen) INT 13 emulated drive underlying block device - * - * @v int13 Emulated drive - * @ret rc Return status code - */ -static int int13_reopen_block ( struct int13_drive *int13 ) { - int rc; - - /* Close any existing block device */ - intf_restart ( &int13->block, -ECONNRESET ); - - /* Open block device */ - if ( ( rc = xfer_open_uri ( &int13->block, int13->uri ) ) != 0 ) { - DBGC ( int13, "INT13 drive %02x could not reopen block " - "device: %s\n", int13->drive, strerror ( rc ) ); - int13->block_rc = rc; - return rc; - } - - /* Clear block device error status */ - int13->block_rc = 0; - - return 0; -} - -/** - * Prepare to issue INT 13 command - * - * @v command INT 13 command - * @v int13 Emulated drive - * @ret rc Return status code - */ -static int int13_command_start ( struct int13_command *command, - struct int13_drive *int13 ) { - int rc; - - /* Sanity check */ - assert ( command->int13 == NULL ); - assert ( ! timer_running ( &command->timer ) ); - - /* Reopen block device if necessary */ - if ( ( int13->block_rc != 0 ) && - ( ( rc = int13_reopen_block ( int13 ) ) != 0 ) ) - return rc; - - /* Initialise command */ - command->rc = -EINPROGRESS; - command->int13 = int13; - start_timer_fixed ( &command->timer, INT13_COMMAND_TIMEOUT ); - - /* Wait for block control interface to become ready */ - while ( ( command->rc == -EINPROGRESS ) && - ( xfer_window ( &int13->block ) == 0 ) ) { - step(); - } - - return ( ( command->rc == -EINPROGRESS ) ? - int13->block_rc : command->rc ); -} - -/** - * Wait for INT 13 command to complete - * - * @v command INT 13 command - * @ret rc Return status code - */ -static int int13_command_wait ( struct int13_command *command ) { - - /* Sanity check */ - assert ( timer_running ( &command->timer ) ); - - /* Wait for command to complete */ - while ( command->rc == -EINPROGRESS ) - step(); - - assert ( ! timer_running ( &command->timer ) ); - return command->rc; -} - -/** - * Terminate INT 13 command - * - * @v command INT 13 command - */ -static void int13_command_stop ( struct int13_command *command ) { - stop_timer ( &command->timer ); - command->int13 = NULL; -} - -/** The single active INT 13 command */ -static struct int13_command int13_command = { - .block = INTF_INIT ( int13_command_desc ), - .timer = TIMER_INIT ( int13_command_expired ), -}; - -/** - * Read from or write to INT 13 drive - * - * @v int13 Emulated drive - * @v lba Starting logical block address - * @v count Number of logical blocks - * @v buffer Data buffer - * @v block_rw Block read/write method - * @ret rc Return status code - */ -static int int13_rw ( struct int13_drive *int13, uint64_t lba, - unsigned int count, userptr_t buffer, - int ( * block_rw ) ( struct interface *control, - struct interface *data, - uint64_t lba, unsigned int count, - userptr_t buffer, size_t len ) ) { - struct int13_command *command = &int13_command; - unsigned int frag_count; - size_t frag_len; - int rc; - - /* Translate to underlying blocksize */ - lba <<= int13->blksize_shift; - count <<= int13->blksize_shift; - - while ( count ) { - - /* Determine fragment length */ - frag_count = count; - if ( frag_count > int13->capacity.max_count ) - frag_count = int13->capacity.max_count; - frag_len = ( int13->capacity.blksize * frag_count ); - - /* Issue command */ - if ( ( ( rc = int13_command_start ( command, int13 ) ) != 0 ) || - ( ( rc = block_rw ( &int13->block, &command->block, lba, - frag_count, buffer, - frag_len ) ) != 0 ) || - ( ( rc = int13_command_wait ( command ) ) != 0 ) ) { - int13_command_stop ( command ); - return rc; - } - int13_command_stop ( command ); - - /* Move to next fragment */ - lba += frag_count; - count -= frag_count; - buffer = userptr_add ( buffer, frag_len ); - } - - return 0; -} - -/** - * Read INT 13 drive capacity - * - * @v int13 Emulated drive - * @ret rc Return status code - */ -static int int13_read_capacity ( struct int13_drive *int13 ) { - struct int13_command *command = &int13_command; - int rc; - - /* Issue command */ - if ( ( ( rc = int13_command_start ( command, int13 ) ) != 0 ) || - ( ( rc = block_read_capacity ( &int13->block, - &command->block ) ) != 0 ) || - ( ( rc = int13_command_wait ( command ) ) != 0 ) ) { - int13_command_stop ( command ); - return rc; - } - - int13_command_stop ( command ); - return 0; -} - -/** - * Parse ISO9660 parameters - * - * @v int13 Emulated drive - * @v scratch Scratch area for single-sector reads - * @ret rc Return status code - * - * Reads and parses ISO9660 parameters, if present. - */ -static int int13_parse_iso9660 ( struct int13_drive *int13, void *scratch ) { - static const struct iso9660_primary_descriptor_fixed primary_check = { - .type = ISO9660_TYPE_PRIMARY, - .id = ISO9660_ID, - }; - struct iso9660_primary_descriptor *primary = scratch; - static const struct eltorito_descriptor_fixed boot_check = { - .type = ISO9660_TYPE_BOOT, - .id = ISO9660_ID, - .version = 1, - .system_id = "EL TORITO SPECIFICATION", - }; - struct eltorito_descriptor *boot = scratch; - unsigned int blksize; - unsigned int blksize_shift; - int rc; - - /* Calculate required blocksize shift */ - blksize = int13_blksize ( int13 ); - blksize_shift = 0; - while ( blksize < ISO9660_BLKSIZE ) { - blksize <<= 1; - blksize_shift++; - } - if ( blksize > ISO9660_BLKSIZE ) { - /* Do nothing if the blksize is invalid for CD-ROM access */ - return 0; - } - - /* Read primary volume descriptor */ - if ( ( rc = int13_rw ( int13, - ( ISO9660_PRIMARY_LBA << blksize_shift ), 1, - virt_to_user ( primary ), block_read ) ) != 0 ){ - DBGC ( int13, "INT13 drive %02x could not read ISO9660 " - "primary volume descriptor: %s\n", - int13->drive, strerror ( rc ) ); - return rc; - } - - /* Do nothing unless this is an ISO image */ - if ( memcmp ( primary, &primary_check, sizeof ( primary_check ) ) != 0 ) - return 0; - DBGC ( int13, "INT13 drive %02x contains an ISO9660 filesystem; " - "treating as CD-ROM\n", int13->drive ); - int13->is_cdrom = 1; - - /* Read boot record volume descriptor */ - if ( ( rc = int13_rw ( int13, - ( ELTORITO_LBA << blksize_shift ), 1, - virt_to_user ( boot ), block_read ) ) != 0 ) { - DBGC ( int13, "INT13 drive %02x could not read El Torito boot " - "record volume descriptor: %s\n", - int13->drive, strerror ( rc ) ); - return rc; - } - - /* Check for an El Torito boot catalog */ - if ( memcmp ( boot, &boot_check, sizeof ( boot_check ) ) == 0 ) { - int13->boot_catalog = boot->sector; - DBGC ( int13, "INT13 drive %02x has an El Torito boot catalog " - "at LBA %08x\n", int13->drive, int13->boot_catalog ); - } else { - DBGC ( int13, "INT13 drive %02x has no El Torito boot " - "catalog\n", int13->drive ); - } - - /* Configure drive for no-emulation CD-ROM access */ - int13->blksize_shift += blksize_shift; - - return 0; -} - -/** - * Guess INT 13 hard disk drive geometry - * - * @v int13 Emulated drive - * @v scratch Scratch area for single-sector reads - * @ret heads Guessed number of heads - * @ret sectors Guessed number of sectors per track - * @ret rc Return status code - * - * Guesses the drive geometry by inspecting the partition table. - */ -static int int13_guess_geometry_hdd ( struct int13_drive *int13, void *scratch, - unsigned int *heads, - unsigned int *sectors ) { - struct master_boot_record *mbr = scratch; - struct partition_table_entry *partition; - unsigned int i; - int rc; - - /* Default guess is xx/255/63 */ - *heads = 255; - *sectors = 63; - - /* Read partition table */ - if ( ( rc = int13_rw ( int13, 0, 1, virt_to_user ( mbr ), - block_read ) ) != 0 ) { - DBGC ( int13, "INT13 drive %02x could not read " - "partition table to guess geometry: %s\n", - int13->drive, strerror ( rc ) ); - return rc; - } - DBGC2 ( int13, "INT13 drive %02x has MBR:\n", int13->drive ); - DBGC2_HDA ( int13, 0, mbr, sizeof ( *mbr ) ); - DBGC ( int13, "INT13 drive %02x has signature %08x\n", - int13->drive, mbr->signature ); - - /* Scan through partition table and modify guesses for - * heads and sectors_per_track if we find any used - * partitions. - */ - for ( i = 0 ; i < 4 ; i++ ) { - partition = &mbr->partitions[i]; - if ( ! partition->type ) - continue; - *heads = ( PART_HEAD ( partition->chs_end ) + 1 ); - *sectors = PART_SECTOR ( partition->chs_end ); - DBGC ( int13, "INT13 drive %02x guessing C/H/S xx/%d/%d based " - "on partition %d\n", - int13->drive, *heads, *sectors, ( i + 1 ) ); - } - - return 0; -} - -/** Recognised floppy disk geometries */ -static const struct int13_fdd_geometry int13_fdd_geometries[] = { - INT13_FDD_GEOMETRY ( 40, 1, 8 ), - INT13_FDD_GEOMETRY ( 40, 1, 9 ), - INT13_FDD_GEOMETRY ( 40, 2, 8 ), - INT13_FDD_GEOMETRY ( 40, 1, 9 ), - INT13_FDD_GEOMETRY ( 80, 2, 8 ), - INT13_FDD_GEOMETRY ( 80, 2, 9 ), - INT13_FDD_GEOMETRY ( 80, 2, 15 ), - INT13_FDD_GEOMETRY ( 80, 2, 18 ), - INT13_FDD_GEOMETRY ( 80, 2, 20 ), - INT13_FDD_GEOMETRY ( 80, 2, 21 ), - INT13_FDD_GEOMETRY ( 82, 2, 21 ), - INT13_FDD_GEOMETRY ( 83, 2, 21 ), - INT13_FDD_GEOMETRY ( 80, 2, 22 ), - INT13_FDD_GEOMETRY ( 80, 2, 23 ), - INT13_FDD_GEOMETRY ( 80, 2, 24 ), - INT13_FDD_GEOMETRY ( 80, 2, 36 ), - INT13_FDD_GEOMETRY ( 80, 2, 39 ), - INT13_FDD_GEOMETRY ( 80, 2, 40 ), - INT13_FDD_GEOMETRY ( 80, 2, 44 ), - INT13_FDD_GEOMETRY ( 80, 2, 48 ), -}; - -/** - * Guess INT 13 floppy disk drive geometry - * - * @v int13 Emulated drive - * @ret heads Guessed number of heads - * @ret sectors Guessed number of sectors per track - * @ret rc Return status code - * - * Guesses the drive geometry by inspecting the disk size. - */ -static int int13_guess_geometry_fdd ( struct int13_drive *int13, - unsigned int *heads, - unsigned int *sectors ) { - unsigned int blocks = int13_capacity ( int13 ); - const struct int13_fdd_geometry *geometry; - unsigned int cylinders; - unsigned int i; - - /* Look for a match against a known geometry */ - for ( i = 0 ; i < ( sizeof ( int13_fdd_geometries ) / - sizeof ( int13_fdd_geometries[0] ) ) ; i++ ) { - geometry = &int13_fdd_geometries[i]; - cylinders = INT13_FDD_CYLINDERS ( geometry ); - *heads = INT13_FDD_HEADS ( geometry ); - *sectors = INT13_FDD_SECTORS ( geometry ); - if ( ( cylinders * (*heads) * (*sectors) ) == blocks ) { - DBGC ( int13, "INT13 drive %02x guessing C/H/S " - "%d/%d/%d based on size %dK\n", int13->drive, - cylinders, *heads, *sectors, ( blocks / 2 ) ); - return 0; - } - } - - /* Otherwise, assume a partial disk image in the most common - * format (1440K, 80/2/18). - */ - *heads = 2; - *sectors = 18; - DBGC ( int13, "INT13 drive %02x guessing C/H/S xx/%d/%d based on size " - "%dK\n", int13->drive, *heads, *sectors, ( blocks / 2 ) ); - return 0; -} - -/** - * Guess INT 13 drive geometry - * - * @v int13 Emulated drive - * @v scratch Scratch area for single-sector reads - * @ret rc Return status code - */ -static int int13_guess_geometry ( struct int13_drive *int13, void *scratch ) { - unsigned int guessed_heads; - unsigned int guessed_sectors; - unsigned int blocks; - unsigned int blocks_per_cyl; - int rc; - - /* Don't even try when the blksize is invalid for C/H/S access */ - if ( int13_blksize ( int13 ) != INT13_BLKSIZE ) - return 0; - - /* Guess geometry according to drive type */ - if ( int13_is_fdd ( int13 ) ) { - if ( ( rc = int13_guess_geometry_fdd ( int13, &guessed_heads, - &guessed_sectors )) != 0) - return rc; - } else { - if ( ( rc = int13_guess_geometry_hdd ( int13, scratch, - &guessed_heads, - &guessed_sectors )) != 0) - return rc; - } - - /* Apply guesses if no geometry already specified */ - if ( ! int13->heads ) - int13->heads = guessed_heads; - if ( ! int13->sectors_per_track ) - int13->sectors_per_track = guessed_sectors; - if ( ! int13->cylinders ) { - /* Avoid attempting a 64-bit divide on a 32-bit system */ - blocks = int13_capacity32 ( int13 ); - blocks_per_cyl = ( int13->heads * int13->sectors_per_track ); - assert ( blocks_per_cyl != 0 ); - int13->cylinders = ( blocks / blocks_per_cyl ); - if ( int13->cylinders > 1024 ) - int13->cylinders = 1024; - } - - return 0; -} - -/** - * Update BIOS drive count - */ -static void int13_sync_num_drives ( void ) { - struct int13_drive *int13; - uint8_t *counter; - uint8_t max_drive; - uint8_t required; - - /* Get current drive counts */ - get_real ( equipment_word, BDA_SEG, BDA_EQUIPMENT_WORD ); - get_real ( num_drives, BDA_SEG, BDA_NUM_DRIVES ); - num_fdds = ( ( equipment_word & 0x0001 ) ? - ( ( ( equipment_word >> 6 ) & 0x3 ) + 1 ) : 0 ); - - /* Ensure count is large enough to cover all of our emulated drives */ - list_for_each_entry ( int13, &int13s, list ) { - counter = ( int13_is_fdd ( int13 ) ? &num_fdds : &num_drives ); - max_drive = int13->drive; - if ( max_drive < int13->natural_drive ) - max_drive = int13->natural_drive; - required = ( ( max_drive & 0x7f ) + 1 ); - if ( *counter < required ) { - *counter = required; - DBGC ( int13, "INT13 drive %02x added to drive count: " - "%d HDDs, %d FDDs\n", - int13->drive, num_drives, num_fdds ); - } - } - - /* Update current drive count */ - equipment_word &= ~( ( 0x3 << 6 ) | 0x0001 ); - if ( num_fdds ) { - equipment_word |= ( 0x0001 | - ( ( ( num_fdds - 1 ) & 0x3 ) << 6 ) ); - } - put_real ( equipment_word, BDA_SEG, BDA_EQUIPMENT_WORD ); - put_real ( num_drives, BDA_SEG, BDA_NUM_DRIVES ); -} - -/** - * Check number of drives - */ -static void int13_check_num_drives ( void ) { - uint16_t check_equipment_word; - uint8_t check_num_drives; - - get_real ( check_equipment_word, BDA_SEG, BDA_EQUIPMENT_WORD ); - get_real ( check_num_drives, BDA_SEG, BDA_NUM_DRIVES ); - if ( ( check_equipment_word != equipment_word ) || - ( check_num_drives != num_drives ) ) { - int13_sync_num_drives(); - } -} - -/** - * INT 13, 00 - Reset disk system - * - * @v int13 Emulated drive - * @ret status Status code - */ -static int int13_reset ( struct int13_drive *int13, - struct i386_all_regs *ix86 __unused ) { - int rc; - - DBGC2 ( int13, "Reset drive\n" ); - - /* Reopen underlying block device */ - if ( ( rc = int13_reopen_block ( int13 ) ) != 0 ) - return -INT13_STATUS_RESET_FAILED; - - /* Check that block device is functional */ - if ( ( rc = int13_read_capacity ( int13 ) ) != 0 ) - return -INT13_STATUS_RESET_FAILED; - - return 0; -} - -/** - * INT 13, 01 - Get status of last operation - * - * @v int13 Emulated drive - * @ret status Status code - */ -static int int13_get_last_status ( struct int13_drive *int13, - struct i386_all_regs *ix86 __unused ) { - DBGC2 ( int13, "Get status of last operation\n" ); - return int13->last_status; -} - -/** - * Read / write sectors - * - * @v int13 Emulated drive - * @v al Number of sectors to read or write (must be nonzero) - * @v ch Low bits of cylinder number - * @v cl (bits 7:6) High bits of cylinder number - * @v cl (bits 5:0) Sector number - * @v dh Head number - * @v es:bx Data buffer - * @v block_rw Block read/write method - * @ret status Status code - * @ret al Number of sectors read or written - */ -static int int13_rw_sectors ( struct int13_drive *int13, - struct i386_all_regs *ix86, - int ( * block_rw ) ( struct interface *control, - struct interface *data, - uint64_t lba, - unsigned int count, - userptr_t buffer, - size_t len ) ) { - unsigned int cylinder, head, sector; - unsigned long lba; - unsigned int count; - userptr_t buffer; - int rc; - - /* Validate blocksize */ - if ( int13_blksize ( int13 ) != INT13_BLKSIZE ) { - DBGC ( int13, "\nINT 13 drive %02x invalid blocksize (%zd) " - "for non-extended read/write\n", - int13->drive, int13_blksize ( int13 ) ); - return -INT13_STATUS_INVALID; - } - - /* Calculate parameters */ - cylinder = ( ( ( ix86->regs.cl & 0xc0 ) << 2 ) | ix86->regs.ch ); - head = ix86->regs.dh; - sector = ( ix86->regs.cl & 0x3f ); - if ( ( cylinder >= int13->cylinders ) || - ( head >= int13->heads ) || - ( sector < 1 ) || ( sector > int13->sectors_per_track ) ) { - DBGC ( int13, "C/H/S %d/%d/%d out of range for geometry " - "%d/%d/%d\n", cylinder, head, sector, int13->cylinders, - int13->heads, int13->sectors_per_track ); - return -INT13_STATUS_INVALID; - } - lba = ( ( ( ( cylinder * int13->heads ) + head ) - * int13->sectors_per_track ) + sector - 1 ); - count = ix86->regs.al; - buffer = real_to_user ( ix86->segs.es, ix86->regs.bx ); - - DBGC2 ( int13, "C/H/S %d/%d/%d = LBA %08lx <-> %04x:%04x (count %d)\n", - cylinder, head, sector, lba, ix86->segs.es, ix86->regs.bx, - count ); - - /* Read from / write to block device */ - if ( ( rc = int13_rw ( int13, lba, count, buffer, block_rw ) ) != 0 ) { - DBGC ( int13, "INT13 drive %02x I/O failed: %s\n", - int13->drive, strerror ( rc ) ); - return -INT13_STATUS_READ_ERROR; - } - - return 0; -} - -/** - * INT 13, 02 - Read sectors - * - * @v int13 Emulated drive - * @v al Number of sectors to read (must be nonzero) - * @v ch Low bits of cylinder number - * @v cl (bits 7:6) High bits of cylinder number - * @v cl (bits 5:0) Sector number - * @v dh Head number - * @v es:bx Data buffer - * @ret status Status code - * @ret al Number of sectors read - */ -static int int13_read_sectors ( struct int13_drive *int13, - struct i386_all_regs *ix86 ) { - DBGC2 ( int13, "Read: " ); - return int13_rw_sectors ( int13, ix86, block_read ); -} - -/** - * INT 13, 03 - Write sectors - * - * @v int13 Emulated drive - * @v al Number of sectors to write (must be nonzero) - * @v ch Low bits of cylinder number - * @v cl (bits 7:6) High bits of cylinder number - * @v cl (bits 5:0) Sector number - * @v dh Head number - * @v es:bx Data buffer - * @ret status Status code - * @ret al Number of sectors written - */ -static int int13_write_sectors ( struct int13_drive *int13, - struct i386_all_regs *ix86 ) { - DBGC2 ( int13, "Write: " ); - return int13_rw_sectors ( int13, ix86, block_write ); -} - -/** - * INT 13, 08 - Get drive parameters - * - * @v int13 Emulated drive - * @ret status Status code - * @ret ch Low bits of maximum cylinder number - * @ret cl (bits 7:6) High bits of maximum cylinder number - * @ret cl (bits 5:0) Maximum sector number - * @ret dh Maximum head number - * @ret dl Number of drives - */ -static int int13_get_parameters ( struct int13_drive *int13, - struct i386_all_regs *ix86 ) { - unsigned int max_cylinder = int13->cylinders - 1; - unsigned int max_head = int13->heads - 1; - unsigned int max_sector = int13->sectors_per_track; /* sic */ - - DBGC2 ( int13, "Get drive parameters\n" ); - - /* Validate blocksize */ - if ( int13_blksize ( int13 ) != INT13_BLKSIZE ) { - DBGC ( int13, "\nINT 13 drive %02x invalid blocksize (%zd) " - "for non-extended parameters\n", - int13->drive, int13_blksize ( int13 ) ); - return -INT13_STATUS_INVALID; - } - - /* Common parameters */ - ix86->regs.ch = ( max_cylinder & 0xff ); - ix86->regs.cl = ( ( ( max_cylinder >> 8 ) << 6 ) | max_sector ); - ix86->regs.dh = max_head; - ix86->regs.dl = ( int13_is_fdd ( int13 ) ? num_fdds : num_drives ); - - /* Floppy-specific parameters */ - if ( int13_is_fdd ( int13 ) ) { - ix86->regs.bl = INT13_FDD_TYPE_1M44; - ix86->segs.es = rm_ds; - ix86->regs.di = __from_data16 ( &int13_fdd_params ); - } - - return 0; -} - -/** - * INT 13, 15 - Get disk type - * - * @v int13 Emulated drive - * @ret ah Type code - * @ret cx:dx Sector count - * @ret status Status code / disk type - */ -static int int13_get_disk_type ( struct int13_drive *int13, - struct i386_all_regs *ix86 ) { - uint32_t blocks; - - DBGC2 ( int13, "Get disk type\n" ); - - if ( int13_is_fdd ( int13 ) ) { - return INT13_DISK_TYPE_FDD; - } else { - blocks = int13_capacity32 ( int13 ); - ix86->regs.cx = ( blocks >> 16 ); - ix86->regs.dx = ( blocks & 0xffff ); - return INT13_DISK_TYPE_HDD; - } -} - -/** - * INT 13, 41 - Extensions installation check - * - * @v int13 Emulated drive - * @v bx 0x55aa - * @ret bx 0xaa55 - * @ret cx Extensions API support bitmap - * @ret status Status code / API version - */ -static int int13_extension_check ( struct int13_drive *int13 __unused, - struct i386_all_regs *ix86 ) { - if ( ix86->regs.bx == 0x55aa ) { - DBGC2 ( int13, "INT13 extensions installation check\n" ); - ix86->regs.bx = 0xaa55; - ix86->regs.cx = ( INT13_EXTENSION_LINEAR | - INT13_EXTENSION_EDD | - INT13_EXTENSION_64BIT ); - return INT13_EXTENSION_VER_3_0; - } else { - return -INT13_STATUS_INVALID; - } -} - -/** - * Extended read / write - * - * @v int13 Emulated drive - * @v ds:si Disk address packet - * @v block_rw Block read/write method - * @ret status Status code - */ -static int int13_extended_rw ( struct int13_drive *int13, - struct i386_all_regs *ix86, - int ( * block_rw ) ( struct interface *control, - struct interface *data, - uint64_t lba, - unsigned int count, - userptr_t buffer, - size_t len ) ) { - struct int13_disk_address addr; - uint8_t bufsize; - uint64_t lba; - unsigned long count; - userptr_t buffer; - int rc; - - /* Extended reads are not allowed on floppy drives. - * ELTORITO.SYS seems to assume that we are really a CD-ROM if - * we support extended reads for a floppy drive. - */ - if ( int13_is_fdd ( int13 ) ) - return -INT13_STATUS_INVALID; - - /* Get buffer size */ - get_real ( bufsize, ix86->segs.ds, - ( ix86->regs.si + offsetof ( typeof ( addr ), bufsize ) ) ); - if ( bufsize < offsetof ( typeof ( addr ), buffer_phys ) ) { - DBGC2 ( int13, "<invalid buffer size %#02x\n>\n", bufsize ); - return -INT13_STATUS_INVALID; - } - - /* Read parameters from disk address structure */ - memset ( &addr, 0, sizeof ( addr ) ); - copy_from_real ( &addr, ix86->segs.ds, ix86->regs.si, bufsize ); - lba = addr.lba; - DBGC2 ( int13, "LBA %08llx <-> ", ( ( unsigned long long ) lba ) ); - if ( ( addr.count == 0xff ) || - ( ( addr.buffer.segment == 0xffff ) && - ( addr.buffer.offset == 0xffff ) ) ) { - buffer = phys_to_user ( addr.buffer_phys ); - DBGC2 ( int13, "%08llx", - ( ( unsigned long long ) addr.buffer_phys ) ); - } else { - buffer = real_to_user ( addr.buffer.segment, - addr.buffer.offset ); - DBGC2 ( int13, "%04x:%04x", addr.buffer.segment, - addr.buffer.offset ); - } - if ( addr.count <= 0x7f ) { - count = addr.count; - } else if ( addr.count == 0xff ) { - count = addr.long_count; - } else { - DBGC2 ( int13, " <invalid count %#02x>\n", addr.count ); - return -INT13_STATUS_INVALID; - } - DBGC2 ( int13, " (count %ld)\n", count ); - - /* Read from / write to block device */ - if ( ( rc = int13_rw ( int13, lba, count, buffer, block_rw ) ) != 0 ) { - DBGC ( int13, "INT13 drive %02x extended I/O failed: %s\n", - int13->drive, strerror ( rc ) ); - /* Record that no blocks were transferred successfully */ - addr.count = 0; - put_real ( addr.count, ix86->segs.ds, - ( ix86->regs.si + - offsetof ( typeof ( addr ), count ) ) ); - return -INT13_STATUS_READ_ERROR; - } - - return 0; -} - -/** - * INT 13, 42 - Extended read - * - * @v int13 Emulated drive - * @v ds:si Disk address packet - * @ret status Status code - */ -static int int13_extended_read ( struct int13_drive *int13, - struct i386_all_regs *ix86 ) { - DBGC2 ( int13, "Extended read: " ); - return int13_extended_rw ( int13, ix86, block_read ); -} - -/** - * INT 13, 43 - Extended write - * - * @v int13 Emulated drive - * @v ds:si Disk address packet - * @ret status Status code - */ -static int int13_extended_write ( struct int13_drive *int13, - struct i386_all_regs *ix86 ) { - DBGC2 ( int13, "Extended write: " ); - return int13_extended_rw ( int13, ix86, block_write ); -} - -/** - * INT 13, 44 - Verify sectors - * - * @v int13 Emulated drive - * @v ds:si Disk address packet - * @ret status Status code - */ -static int int13_extended_verify ( struct int13_drive *int13, - struct i386_all_regs *ix86 ) { - struct int13_disk_address addr; - uint64_t lba; - unsigned long count; - - /* Read parameters from disk address structure */ - if ( DBG_EXTRA ) { - copy_from_real ( &addr, ix86->segs.ds, ix86->regs.si, - sizeof ( addr )); - lba = addr.lba; - count = addr.count; - DBGC2 ( int13, "Verify: LBA %08llx (count %ld)\n", - ( ( unsigned long long ) lba ), count ); - } - - /* We have no mechanism for verifying sectors */ - return -INT13_STATUS_INVALID; -} - -/** - * INT 13, 44 - Extended seek - * - * @v int13 Emulated drive - * @v ds:si Disk address packet - * @ret status Status code - */ -static int int13_extended_seek ( struct int13_drive *int13, - struct i386_all_regs *ix86 ) { - struct int13_disk_address addr; - uint64_t lba; - unsigned long count; - - /* Read parameters from disk address structure */ - if ( DBG_EXTRA ) { - copy_from_real ( &addr, ix86->segs.ds, ix86->regs.si, - sizeof ( addr )); - lba = addr.lba; - count = addr.count; - DBGC2 ( int13, "Seek: LBA %08llx (count %ld)\n", - ( ( unsigned long long ) lba ), count ); - } - - /* Ignore and return success */ - return 0; -} - -/** - * Build device path information - * - * @v int13 Emulated drive - * @v dpi Device path information - * @ret rc Return status code - */ -static int int13_device_path_info ( struct int13_drive *int13, - struct edd_device_path_information *dpi ) { - struct device *device; - struct device_description *desc; - unsigned int i; - uint8_t sum = 0; - int rc; - - /* Reopen block device if necessary */ - if ( ( int13->block_rc != 0 ) && - ( ( rc = int13_reopen_block ( int13 ) ) != 0 ) ) - return rc; - - /* Get underlying hardware device */ - device = identify_device ( &int13->block ); - if ( ! device ) { - DBGC ( int13, "INT13 drive %02x cannot identify hardware " - "device\n", int13->drive ); - return -ENODEV; - } - - /* Fill in bus type and interface path */ - desc = &device->desc; - switch ( desc->bus_type ) { - case BUS_TYPE_PCI: - dpi->host_bus_type.type = EDD_BUS_TYPE_PCI; - dpi->interface_path.pci.bus = PCI_BUS ( desc->location ); - dpi->interface_path.pci.slot = PCI_SLOT ( desc->location ); - dpi->interface_path.pci.function = PCI_FUNC ( desc->location ); - dpi->interface_path.pci.channel = 0xff; /* unused */ - break; - default: - DBGC ( int13, "INT13 drive %02x unrecognised bus type %d\n", - int13->drive, desc->bus_type ); - return -ENOTSUP; - } - - /* Get EDD block device description */ - if ( ( rc = edd_describe ( &int13->block, &dpi->interface_type, - &dpi->device_path ) ) != 0 ) { - DBGC ( int13, "INT13 drive %02x cannot identify block device: " - "%s\n", int13->drive, strerror ( rc ) ); - return rc; - } - - /* Fill in common fields and fix checksum */ - dpi->key = EDD_DEVICE_PATH_INFO_KEY; - dpi->len = sizeof ( *dpi ); - for ( i = 0 ; i < sizeof ( *dpi ) ; i++ ) - sum += *( ( ( uint8_t * ) dpi ) + i ); - dpi->checksum -= sum; - - return 0; -} - -/** - * INT 13, 48 - Get extended parameters - * - * @v int13 Emulated drive - * @v ds:si Drive parameter table - * @ret status Status code - */ -static int int13_get_extended_parameters ( struct int13_drive *int13, - struct i386_all_regs *ix86 ) { - struct int13_disk_parameters params; - struct segoff address; - size_t len = sizeof ( params ); - uint16_t bufsize; - int rc; - - /* Get buffer size */ - get_real ( bufsize, ix86->segs.ds, - ( ix86->regs.si + offsetof ( typeof ( params ), bufsize ))); - - DBGC2 ( int13, "Get extended drive parameters to %04x:%04x+%02x\n", - ix86->segs.ds, ix86->regs.si, bufsize ); - - /* Build drive parameters */ - memset ( ¶ms, 0, sizeof ( params ) ); - params.flags = INT13_FL_DMA_TRANSPARENT; - if ( ( int13->cylinders < 1024 ) && - ( int13_capacity ( int13 ) <= INT13_MAX_CHS_SECTORS ) ) { - params.flags |= INT13_FL_CHS_VALID; - } - params.cylinders = int13->cylinders; - params.heads = int13->heads; - params.sectors_per_track = int13->sectors_per_track; - params.sectors = int13_capacity ( int13 ); - params.sector_size = int13_blksize ( int13 ); - memset ( ¶ms.dpte, 0xff, sizeof ( params.dpte ) ); - if ( ( rc = int13_device_path_info ( int13, ¶ms.dpi ) ) != 0 ) { - DBGC ( int13, "INT13 drive %02x could not provide device " - "path information: %s\n", - int13->drive, strerror ( rc ) ); - len = offsetof ( typeof ( params ), dpi ); - } - - /* Calculate returned "buffer size" (which will be less than - * the length actually copied if device path information is - * present). - */ - if ( bufsize < offsetof ( typeof ( params ), dpte ) ) - return -INT13_STATUS_INVALID; - if ( bufsize < offsetof ( typeof ( params ), dpi ) ) { - params.bufsize = offsetof ( typeof ( params ), dpte ); - } else { - params.bufsize = offsetof ( typeof ( params ), dpi ); - } - - DBGC ( int13, "INT 13 drive %02x described using extended " - "parameters:\n", int13->drive ); - address.segment = ix86->segs.ds; - address.offset = ix86->regs.si; - DBGC_HDA ( int13, address, ¶ms, len ); - - /* Return drive parameters */ - if ( len > bufsize ) - len = bufsize; - copy_to_real ( ix86->segs.ds, ix86->regs.si, ¶ms, len ); - - return 0; -} - -/** - * INT 13, 4b - Get status or terminate CD-ROM emulation - * - * @v int13 Emulated drive - * @v ds:si Specification packet - * @ret status Status code - */ -static int int13_cdrom_status_terminate ( struct int13_drive *int13, - struct i386_all_regs *ix86 ) { - struct int13_cdrom_specification specification; - - DBGC2 ( int13, "Get CD-ROM emulation status to %04x:%04x%s\n", - ix86->segs.ds, ix86->regs.si, - ( ix86->regs.al ? "" : " and terminate" ) ); - - /* Fail if we are not a CD-ROM */ - if ( ! int13->is_cdrom ) { - DBGC ( int13, "INT13 drive %02x is not a CD-ROM\n", - int13->drive ); - return -INT13_STATUS_INVALID; - } - - /* Build specification packet */ - memset ( &specification, 0, sizeof ( specification ) ); - specification.size = sizeof ( specification ); - specification.drive = int13->drive; - - /* Return specification packet */ - copy_to_real ( ix86->segs.ds, ix86->regs.si, &specification, - sizeof ( specification ) ); - - return 0; -} - - -/** - * INT 13, 4d - Read CD-ROM boot catalog - * - * @v int13 Emulated drive - * @v ds:si Command packet - * @ret status Status code - */ -static int int13_cdrom_read_boot_catalog ( struct int13_drive *int13, - struct i386_all_regs *ix86 ) { - struct int13_cdrom_boot_catalog_command command; - int rc; - - /* Read parameters from command packet */ - copy_from_real ( &command, ix86->segs.ds, ix86->regs.si, - sizeof ( command ) ); - DBGC2 ( int13, "Read CD-ROM boot catalog to %08x\n", command.buffer ); - - /* Fail if we have no boot catalog */ - if ( ! int13->boot_catalog ) { - DBGC ( int13, "INT13 drive %02x has no boot catalog\n", - int13->drive ); - return -INT13_STATUS_INVALID; - } - - /* Read from boot catalog */ - if ( ( rc = int13_rw ( int13, ( int13->boot_catalog + command.start ), - command.count, phys_to_user ( command.buffer ), - block_read ) ) != 0 ) { - DBGC ( int13, "INT13 drive %02x could not read boot catalog: " - "%s\n", int13->drive, strerror ( rc ) ); - return -INT13_STATUS_READ_ERROR; - } - - return 0; -} - -/** - * INT 13 handler - * - */ -static __asmcall void int13 ( struct i386_all_regs *ix86 ) { - int command = ix86->regs.ah; - unsigned int bios_drive = ix86->regs.dl; - struct int13_drive *int13; - int status; - - /* Check BIOS hasn't killed off our drive */ - int13_check_num_drives(); - - list_for_each_entry ( int13, &int13s, list ) { - - if ( bios_drive != int13->drive ) { - /* Remap any accesses to this drive's natural number */ - if ( bios_drive == int13->natural_drive ) { - DBGC2 ( int13, "INT13,%02x (%02x) remapped to " - "(%02x)\n", ix86->regs.ah, - bios_drive, int13->drive ); - ix86->regs.dl = int13->drive; - return; - } else if ( ( ( bios_drive & 0x7f ) == 0x7f ) && - ( command == INT13_CDROM_STATUS_TERMINATE ) - && int13->is_cdrom ) { - /* Catch non-drive-specific CD-ROM calls */ - } else { - continue; - } - } - - DBGC2 ( int13, "INT13,%02x (%02x): ", - ix86->regs.ah, bios_drive ); - - switch ( command ) { - case INT13_RESET: - status = int13_reset ( int13, ix86 ); - break; - case INT13_GET_LAST_STATUS: - status = int13_get_last_status ( int13, ix86 ); - break; - case INT13_READ_SECTORS: - status = int13_read_sectors ( int13, ix86 ); - break; - case INT13_WRITE_SECTORS: - status = int13_write_sectors ( int13, ix86 ); - break; - case INT13_GET_PARAMETERS: - status = int13_get_parameters ( int13, ix86 ); - break; - case INT13_GET_DISK_TYPE: - status = int13_get_disk_type ( int13, ix86 ); - break; - case INT13_EXTENSION_CHECK: - status = int13_extension_check ( int13, ix86 ); - break; - case INT13_EXTENDED_READ: - status = int13_extended_read ( int13, ix86 ); - break; - case INT13_EXTENDED_WRITE: - status = int13_extended_write ( int13, ix86 ); - break; - case INT13_EXTENDED_VERIFY: - status = int13_extended_verify ( int13, ix86 ); - break; - case INT13_EXTENDED_SEEK: - status = int13_extended_seek ( int13, ix86 ); - break; - case INT13_GET_EXTENDED_PARAMETERS: - status = int13_get_extended_parameters ( int13, ix86 ); - break; - case INT13_CDROM_STATUS_TERMINATE: - status = int13_cdrom_status_terminate ( int13, ix86 ); - break; - case INT13_CDROM_READ_BOOT_CATALOG: - status = int13_cdrom_read_boot_catalog ( int13, ix86 ); - break; - default: - DBGC2 ( int13, "*** Unrecognised INT13 ***\n" ); - status = -INT13_STATUS_INVALID; - break; - } - - /* Store status for INT 13,01 */ - int13->last_status = status; - - /* Negative status indicates an error */ - if ( status < 0 ) { - status = -status; - DBGC ( int13, "INT13,%02x (%02x) failed with status " - "%02x\n", ix86->regs.ah, int13->drive, status ); - } else { - ix86->flags &= ~CF; - } - ix86->regs.ah = status; - - /* Set OF to indicate to wrapper not to chain this call */ - ix86->flags |= OF; - - return; - } -} - -/** - * Hook INT 13 handler - * - */ -static void int13_hook_vector ( void ) { - /* Assembly wrapper to call int13(). int13() sets OF if we - * should not chain to the previous handler. (The wrapper - * clears CF and OF before calling int13()). - */ - __asm__ __volatile__ ( - TEXT16_CODE ( "\nint13_wrapper:\n\t" - /* Preserve %ax and %dx for future reference */ - "pushw %%bp\n\t" - "movw %%sp, %%bp\n\t" - "pushw %%ax\n\t" - "pushw %%dx\n\t" - /* Clear OF, set CF, call int13() */ - "orb $0, %%al\n\t" - "stc\n\t" - "pushl %0\n\t" - "pushw %%cs\n\t" - "call prot_call\n\t" - /* Chain if OF not set */ - "jo 1f\n\t" - "pushfw\n\t" - "lcall *%%cs:int13_vector\n\t" - "\n1:\n\t" - /* Overwrite flags for iret */ - "pushfw\n\t" - "popw 6(%%bp)\n\t" - /* Fix up %dl: - * - * INT 13,15 : do nothing if hard disk - * INT 13,08 : load with number of drives - * all others: restore original value - */ - "cmpb $0x15, -1(%%bp)\n\t" - "jne 2f\n\t" - "testb $0x80, -4(%%bp)\n\t" - "jnz 3f\n\t" - "\n2:\n\t" - "movb -4(%%bp), %%dl\n\t" - "cmpb $0x08, -1(%%bp)\n\t" - "jne 3f\n\t" - "testb $0x80, %%dl\n\t" - "movb %%cs:num_drives, %%dl\n\t" - "jnz 3f\n\t" - "movb %%cs:num_fdds, %%dl\n\t" - /* Return */ - "\n3:\n\t" - "movw %%bp, %%sp\n\t" - "popw %%bp\n\t" - "iret\n\t" ) - : : "i" ( int13 ) ); - - hook_bios_interrupt ( 0x13, ( unsigned int ) int13_wrapper, - &int13_vector ); -} - -/** - * Unhook INT 13 handler - */ -static void int13_unhook_vector ( void ) { - unhook_bios_interrupt ( 0x13, ( unsigned int ) int13_wrapper, - &int13_vector ); -} - -/** - * Check INT13 emulated drive flow control window - * - * @v int13 Emulated drive - */ -static size_t int13_block_window ( struct int13_drive *int13 __unused ) { - - /* We are never ready to receive data via this interface. - * This prevents objects that support both block and stream - * interfaces from attempting to send us stream data. - */ - return 0; -} - -/** - * Handle INT 13 emulated drive underlying block device closing - * - * @v int13 Emulated drive - * @v rc Reason for close - */ -static void int13_block_close ( struct int13_drive *int13, int rc ) { - - /* Any closing is an error from our point of view */ - if ( rc == 0 ) - rc = -ENOTCONN; - - DBGC ( int13, "INT13 drive %02x went away: %s\n", - int13->drive, strerror ( rc ) ); - - /* Record block device error code */ - int13->block_rc = rc; - - /* Shut down interfaces */ - intf_restart ( &int13->block, rc ); -} - -/** INT 13 drive interface operations */ -static struct interface_operation int13_block_op[] = { - INTF_OP ( xfer_window, struct int13_drive *, int13_block_window ), - INTF_OP ( intf_close, struct int13_drive *, int13_block_close ), -}; - -/** INT 13 drive interface descriptor */ -static struct interface_descriptor int13_block_desc = - INTF_DESC ( struct int13_drive, block, int13_block_op ); - -/** - * Free INT 13 emulated drive - * - * @v refcnt Reference count - */ -static void int13_free ( struct refcnt *refcnt ) { - struct int13_drive *int13 = - container_of ( refcnt, struct int13_drive, refcnt ); - - uri_put ( int13->uri ); - free ( int13 ); -} - -/** - * Hook INT 13 emulated drive - * - * @v uri URI - * @v drive Drive number - * @ret rc Return status code - * - * Registers the drive with the INT 13 emulation subsystem, and hooks - * the INT 13 interrupt vector (if not already hooked). - */ -static int int13_hook ( struct uri *uri, unsigned int drive ) { - struct int13_drive *int13; - unsigned int natural_drive; - void *scratch; - int rc; - - /* Calculate natural drive number */ - int13_sync_num_drives(); - natural_drive = ( ( drive & 0x80 ) ? ( num_drives | 0x80 ) : num_fdds ); - - /* Check that drive number is not in use */ - list_for_each_entry ( int13, &int13s, list ) { - if ( int13->drive == drive ) { - rc = -EADDRINUSE; - goto err_in_use; - } - } - - /* Allocate and initialise structure */ - int13 = zalloc ( sizeof ( *int13 ) ); - if ( ! int13 ) { - rc = -ENOMEM; - goto err_zalloc; - } - ref_init ( &int13->refcnt, int13_free ); - intf_init ( &int13->block, &int13_block_desc, &int13->refcnt ); - int13->uri = uri_get ( uri ); - int13->drive = drive; - int13->natural_drive = natural_drive; - - /* Open block device interface */ - if ( ( rc = int13_reopen_block ( int13 ) ) != 0 ) - goto err_reopen_block; - - /* Read device capacity */ - if ( ( rc = int13_read_capacity ( int13 ) ) != 0 ) - goto err_read_capacity; - - /* Allocate scratch area */ - scratch = malloc ( int13_blksize ( int13 ) ); - if ( ! scratch ) - goto err_alloc_scratch; - - /* Parse parameters, if present */ - if ( ( rc = int13_parse_iso9660 ( int13, scratch ) ) != 0 ) - goto err_parse_iso9660; - - /* Give drive a default geometry */ - if ( ( rc = int13_guess_geometry ( int13, scratch ) ) != 0 ) - goto err_guess_geometry; - - DBGC ( int13, "INT13 drive %02x (naturally %02x) registered with C/H/S " - "geometry %d/%d/%d\n", int13->drive, int13->natural_drive, - int13->cylinders, int13->heads, int13->sectors_per_track ); - - /* Hook INT 13 vector if not already hooked */ - if ( list_empty ( &int13s ) ) { - int13_hook_vector(); - devices_get(); - } - - /* Add to list of emulated drives */ - list_add ( &int13->list, &int13s ); - - /* Update BIOS drive count */ - int13_sync_num_drives(); - - free ( scratch ); - return 0; - - err_guess_geometry: - err_parse_iso9660: - free ( scratch ); - err_alloc_scratch: - err_read_capacity: - err_reopen_block: - intf_shutdown ( &int13->block, rc ); - ref_put ( &int13->refcnt ); - err_zalloc: - err_in_use: - return rc; -} - -/** - * Find INT 13 emulated drive by drive number - * - * @v drive Drive number - * @ret int13 Emulated drive, or NULL - */ -static struct int13_drive * int13_find ( unsigned int drive ) { - struct int13_drive *int13; - - list_for_each_entry ( int13, &int13s, list ) { - if ( int13->drive == drive ) - return int13; - } - return NULL; -} - -/** - * Unhook INT 13 emulated drive - * - * @v drive Drive number - * - * Unregisters the drive from the INT 13 emulation subsystem. If this - * is the last emulated drive, the INT 13 vector is unhooked (if - * possible). - */ -static void int13_unhook ( unsigned int drive ) { - struct int13_drive *int13; - - /* Find drive */ - int13 = int13_find ( drive ); - if ( ! int13 ) { - DBG ( "INT13 cannot find emulated drive %02x\n", drive ); - return; - } - - /* Shut down interfaces */ - intf_shutdown ( &int13->block, 0 ); - - /* Remove from list of emulated drives */ - list_del ( &int13->list ); - - /* Should adjust BIOS drive count, but it's difficult - * to do so reliably. - */ - - DBGC ( int13, "INT13 drive %02x unregistered\n", int13->drive ); - - /* Unhook INT 13 vector if no more drives */ - if ( list_empty ( &int13s ) ) { - devices_put(); - int13_unhook_vector(); - } - - /* Drop list's reference to drive */ - ref_put ( &int13->refcnt ); -} - -/** - * Load and verify master boot record from INT 13 drive - * - * @v drive Drive number - * @v address Boot code address to fill in - * @ret rc Return status code - */ -static int int13_load_mbr ( unsigned int drive, struct segoff *address ) { - uint8_t status; - int discard_b, discard_c, discard_d; - uint16_t magic; - - /* Use INT 13, 02 to read the MBR */ - address->segment = 0; - address->offset = 0x7c00; - __asm__ __volatile__ ( REAL_CODE ( "pushw %%es\n\t" - "pushl %%ebx\n\t" - "popw %%bx\n\t" - "popw %%es\n\t" - "stc\n\t" - "sti\n\t" - "int $0x13\n\t" - "sti\n\t" /* BIOS bugs */ - "jc 1f\n\t" - "xorw %%ax, %%ax\n\t" - "\n1:\n\t" - "popw %%es\n\t" ) - : "=a" ( status ), "=b" ( discard_b ), - "=c" ( discard_c ), "=d" ( discard_d ) - : "a" ( 0x0201 ), "b" ( *address ), - "c" ( 1 ), "d" ( drive ) ); - if ( status ) { - DBG ( "INT13 drive %02x could not read MBR (status %02x)\n", - drive, status ); - return -EIO; - } - - /* Check magic signature */ - get_real ( magic, address->segment, - ( address->offset + - offsetof ( struct master_boot_record, magic ) ) ); - if ( magic != INT13_MBR_MAGIC ) { - DBG ( "INT13 drive %02x does not contain a valid MBR\n", - drive ); - return -ENOEXEC; - } - - return 0; -} - -/** El Torito boot catalog command packet */ -static struct int13_cdrom_boot_catalog_command __data16 ( eltorito_cmd ) = { - .size = sizeof ( struct int13_cdrom_boot_catalog_command ), - .count = 1, - .buffer = 0x7c00, - .start = 0, -}; -#define eltorito_cmd __use_data16 ( eltorito_cmd ) - -/** El Torito disk address packet */ -static struct int13_disk_address __bss16 ( eltorito_address ); -#define eltorito_address __use_data16 ( eltorito_address ) - -/** - * Load and verify El Torito boot record from INT 13 drive - * - * @v drive Drive number - * @v address Boot code address to fill in - * @ret rc Return status code - */ -static int int13_load_eltorito ( unsigned int drive, struct segoff *address ) { - struct { - struct eltorito_validation_entry valid; - struct eltorito_boot_entry boot; - } __attribute__ (( packed )) catalog; - uint8_t status; - - /* Use INT 13, 4d to read the boot catalog */ - __asm__ __volatile__ ( REAL_CODE ( "stc\n\t" - "sti\n\t" - "int $0x13\n\t" - "sti\n\t" /* BIOS bugs */ - "jc 1f\n\t" - "xorw %%ax, %%ax\n\t" - "\n1:\n\t" ) - : "=a" ( status ) - : "a" ( 0x4d00 ), "d" ( drive ), - "S" ( __from_data16 ( &eltorito_cmd ) ) ); - if ( status ) { - DBG ( "INT13 drive %02x could not read El Torito boot catalog " - "(status %02x)\n", drive, status ); - return -EIO; - } - copy_from_user ( &catalog, phys_to_user ( eltorito_cmd.buffer ), 0, - sizeof ( catalog ) ); - - /* Sanity checks */ - if ( catalog.valid.platform_id != ELTORITO_PLATFORM_X86 ) { - DBG ( "INT13 drive %02x El Torito specifies unknown platform " - "%02x\n", drive, catalog.valid.platform_id ); - return -ENOEXEC; - } - if ( catalog.boot.indicator != ELTORITO_BOOTABLE ) { - DBG ( "INT13 drive %02x El Torito is not bootable\n", drive ); - return -ENOEXEC; - } - if ( catalog.boot.media_type != ELTORITO_NO_EMULATION ) { - DBG ( "INT13 drive %02x El Torito requires emulation " - "type %02x\n", drive, catalog.boot.media_type ); - return -ENOTSUP; - } - DBG ( "INT13 drive %02x El Torito boot image at LBA %08x (count %d)\n", - drive, catalog.boot.start, catalog.boot.length ); - address->segment = ( catalog.boot.load_segment ? - catalog.boot.load_segment : 0x7c0 ); - address->offset = 0; - DBG ( "INT13 drive %02x El Torito boot image loads at %04x:%04x\n", - drive, address->segment, address->offset ); - - /* Use INT 13, 42 to read the boot image */ - eltorito_address.bufsize = - offsetof ( typeof ( eltorito_address ), buffer_phys ); - eltorito_address.count = catalog.boot.length; - eltorito_address.buffer = *address; - eltorito_address.lba = catalog.boot.start; - __asm__ __volatile__ ( REAL_CODE ( "stc\n\t" - "sti\n\t" - "int $0x13\n\t" - "sti\n\t" /* BIOS bugs */ - "jc 1f\n\t" - "xorw %%ax, %%ax\n\t" - "\n1:\n\t" ) - : "=a" ( status ) - : "a" ( 0x4200 ), "d" ( drive ), - "S" ( __from_data16 ( &eltorito_address ) ) ); - if ( status ) { - DBG ( "INT13 drive %02x could not read El Torito boot image " - "(status %02x)\n", drive, status ); - return -EIO; - } - - return 0; -} - -/** - * Attempt to boot from an INT 13 drive - * - * @v drive Drive number - * @ret rc Return status code - * - * This boots from the specified INT 13 drive by loading the Master - * Boot Record to 0000:7c00 and jumping to it. INT 18 is hooked to - * capture an attempt by the MBR to boot the next device. (This is - * the closest thing to a return path from an MBR). - * - * Note that this function can never return success, by definition. - */ -static int int13_boot ( unsigned int drive ) { - struct memory_map memmap; - struct segoff address; - int rc; - - /* Look for a usable boot sector */ - if ( ( ( rc = int13_load_mbr ( drive, &address ) ) != 0 ) && - ( ( rc = int13_load_eltorito ( drive, &address ) ) != 0 ) ) - return rc; - - /* Dump out memory map prior to boot, if memmap debugging is - * enabled. Not required for program flow, but we have so - * many problems that turn out to be memory-map related that - * it's worth doing. - */ - get_memmap ( &memmap ); - - /* Jump to boot sector */ - if ( ( rc = call_bootsector ( address.segment, address.offset, - drive ) ) != 0 ) { - DBG ( "INT13 drive %02x boot returned: %s\n", - drive, strerror ( rc ) ); - return rc; - } - - return -ECANCELED; /* -EIMPOSSIBLE */ -} - -/** A boot firmware table generated by iPXE */ -union xbft_table { - /** ACPI header */ - struct acpi_description_header acpi; - /** Padding */ - char pad[768]; -}; - -/** The boot firmware table generated by iPXE */ -static union xbft_table __bss16 ( xbftab ) __attribute__ (( aligned ( 16 ) )); -#define xbftab __use_data16 ( xbftab ) - -/** - * Describe INT 13 emulated drive for SAN-booted operating system - * - * @v drive Drive number - * @ret rc Return status code - */ -static int int13_describe ( unsigned int drive ) { - struct int13_drive *int13; - struct segoff xbft_address; - int rc; - - /* Find drive */ - int13 = int13_find ( drive ); - if ( ! int13 ) { - DBG ( "INT13 cannot find emulated drive %02x\n", drive ); - return -ENODEV; - } - - /* Reopen block device if necessary */ - if ( ( int13->block_rc != 0 ) && - ( ( rc = int13_reopen_block ( int13 ) ) != 0 ) ) - return rc; - - /* Clear table */ - memset ( &xbftab, 0, sizeof ( xbftab ) ); - - /* Fill in common parameters */ - strncpy ( xbftab.acpi.oem_id, "FENSYS", - sizeof ( xbftab.acpi.oem_id ) ); - strncpy ( xbftab.acpi.oem_table_id, "iPXE", - sizeof ( xbftab.acpi.oem_table_id ) ); - - /* Fill in remaining parameters */ - if ( ( rc = acpi_describe ( &int13->block, &xbftab.acpi, - sizeof ( xbftab ) ) ) != 0 ) { - DBGC ( int13, "INT13 drive %02x could not create ACPI " - "description: %s\n", int13->drive, strerror ( rc ) ); - return rc; - } - - /* Fix up ACPI checksum */ - acpi_fix_checksum ( &xbftab.acpi ); - xbft_address.segment = rm_ds; - xbft_address.offset = __from_data16 ( &xbftab ); - DBGC ( int13, "INT13 drive %02x described using boot firmware " - "table:\n", int13->drive ); - DBGC_HDA ( int13, xbft_address, &xbftab, - le32_to_cpu ( xbftab.acpi.length ) ); - - return 0; -} - -PROVIDE_SANBOOT_INLINE ( pcbios, san_default_drive ); -PROVIDE_SANBOOT ( pcbios, san_hook, int13_hook ); -PROVIDE_SANBOOT ( pcbios, san_unhook, int13_unhook ); -PROVIDE_SANBOOT ( pcbios, san_boot, int13_boot ); -PROVIDE_SANBOOT ( pcbios, san_describe, int13_describe ); diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/int13con.c b/qemu/roms/ipxe/src/arch/i386/interface/pcbios/int13con.c deleted file mode 100644 index 2414c6909..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/int13con.c +++ /dev/null @@ -1,284 +0,0 @@ -/* - * Copyright (C) 2015 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <stdint.h> -#include <string.h> -#include <errno.h> -#include <ipxe/console.h> -#include <ipxe/init.h> -#include <realmode.h> -#include <int13.h> -#include <config/console.h> - -/** @file - * - * INT13 disk log console - * - */ - -/* Set default console usage if applicable */ -#if ! ( defined ( CONSOLE_INT13 ) && CONSOLE_EXPLICIT ( CONSOLE_INT13 ) ) -#undef CONSOLE_INT13 -#define CONSOLE_INT13 ( CONSOLE_USAGE_ALL & ~CONSOLE_USAGE_LOG ) -#endif - -/** Disk drive number */ -#define INT13CON_DRIVE 0x80 - -/** Log partition type */ -#define INT13CON_PARTITION_TYPE 0xe0 - -/** Maximum number of outstanding unwritten characters */ -#define INT13CON_MAX_UNWRITTEN 64 - -/** Log partition header */ -struct int13con_header { - /** Magic signature */ - char magic[10]; -} __attribute__ (( packed )); - -/** Log partition magic signature */ -#define INT13CON_MAGIC "iPXE LOG\n\n" - -/** Sector buffer */ -static uint8_t __bss16_array ( int13con_buffer, [INT13_BLKSIZE] ); -#define int13con_buffer __use_data16 ( int13con_buffer ) - -/** Disk address packet */ -static struct int13_disk_address __bss16 ( int13con_address ); -#define int13con_address __use_data16 ( int13con_address ) - -/** Current LBA */ -static uint64_t int13con_lba; - -/** Maximum LBA */ -static uint64_t int13con_max_lba; - -/** Current offset within sector */ -static size_t int13con_offset; - -/** Number of unwritten characters */ -static size_t int13con_unwritten; - -struct console_driver int13con __console_driver; - -/** - * Read/write disk sector - * - * @v op Operation - * @v lba Logical block address - * @ret rc Return status code - */ -static int int13con_rw ( unsigned int op, uint64_t lba ) { - uint8_t error; - - /* Construct disk address packet */ - int13con_address.bufsize = sizeof ( int13con_address ); - int13con_address.count = 1; - int13con_address.buffer.segment = rm_ds; - int13con_address.buffer.offset = __from_data16 ( int13con_buffer ); - int13con_address.lba = lba; - - /* Issue INT13 */ - __asm__ ( REAL_CODE ( "int $0x13\n\t" ) - : "=a" ( error ) - : "0" ( op << 8 ), "d" ( INT13CON_DRIVE ), - "S" ( __from_data16 ( &int13con_address ) ) ); - if ( error ) { - DBG ( "INT13CON operation %04x failed: %02x\n", - op, error ); - return -EIO; - } - - return 0; -} - -/** - * Write character to console - * - * @v character Character - */ -static void int13con_putchar ( int character ) { - static int busy; - int rc; - - /* Ignore if we are already mid-logging */ - if ( busy ) - return; - busy = 1; - - /* Write character to buffer */ - int13con_buffer[int13con_offset++] = character; - int13con_unwritten++; - - /* Write sector to disk, if applicable */ - if ( ( int13con_offset == INT13_BLKSIZE ) || - ( int13con_unwritten == INT13CON_MAX_UNWRITTEN ) || - ( character == '\n' ) ) { - - /* Write sector to disk */ - if ( ( rc = int13con_rw ( INT13_EXTENDED_WRITE, - int13con_lba ) ) != 0 ) { - DBG ( "INT13CON could not write log\n" ); - /* Ignore and continue; there's nothing we can do */ - } - - /* Reset count of unwritten characters */ - int13con_unwritten = 0; - } - - /* Move to next sector, if applicable */ - if ( int13con_offset == INT13_BLKSIZE ) { - - /* Disable console if we have run out of space */ - if ( int13con_lba >= int13con_max_lba ) - int13con.disabled = 1; - - /* Clear log buffer */ - memset ( int13con_buffer, 0, sizeof ( int13con_buffer ) ); - int13con_offset = 0; - - /* Move to next sector */ - int13con_lba++; - } - - /* Clear busy flag */ - busy = 0; -} - -/** - * Find log partition - * - * @ret rc Return status code - */ -static int int13con_find ( void ) { - struct master_boot_record *mbr = - ( ( struct master_boot_record * ) int13con_buffer ); - struct int13con_header *hdr = - ( ( struct int13con_header * ) int13con_buffer ); - struct partition_table_entry part[4]; - unsigned int i; - int rc; - - /* Read MBR */ - if ( ( rc = int13con_rw ( INT13_EXTENDED_READ, 0 ) ) != 0 ) { - DBG ( "INT13CON could not read MBR: %s\n", strerror ( rc ) ); - return rc; - } - - /* Check MBR magic */ - if ( mbr->magic != INT13_MBR_MAGIC ) { - DBG ( "INT13CON incorrect MBR magic\n" ); - DBG2_HDA ( 0, mbr, sizeof ( *mbr ) ); - return -EINVAL; - } - - /* Look for magic partition */ - memcpy ( part, mbr->partitions, sizeof ( part ) ); - for ( i = 0 ; i < ( sizeof ( part ) / sizeof ( part[0] ) ) ; i++ ) { - - /* Skip partitions of the wrong type */ - if ( part[i].type != INT13CON_PARTITION_TYPE ) - continue; - - /* Read partition header */ - if ( ( rc = int13con_rw ( INT13_EXTENDED_READ, - part[i].start ) ) != 0 ) { - DBG ( "INT13CON partition %d could not read header: " - "%s\n", ( i + 1 ), strerror ( rc ) ); - continue; - } - - /* Check partition header */ - if ( memcmp ( hdr->magic, INT13CON_MAGIC, - sizeof ( hdr->magic ) ) != 0 ) { - DBG ( "INT13CON partition %d bad magic\n", ( i + 1 ) ); - DBG2_HDA ( 0, hdr, sizeof ( *hdr ) ); - continue; - } - - /* Found log partition */ - DBG ( "INT13CON partition %d at [%08x,%08x)\n", ( i + 1 ), - part[i].start, ( part[i].start + part[i].length ) ); - int13con_lba = part[i].start; - int13con_max_lba = ( part[i].start + part[i].length - 1 ); - - /* Initialise log buffer */ - memset ( &int13con_buffer[ sizeof ( *hdr ) ], 0, - ( sizeof ( int13con_buffer ) - sizeof ( *hdr ) ) ); - int13con_offset = sizeof ( hdr->magic ); - - return 0; - } - - DBG ( "INT13CON found no log partition\n" ); - return -ENOENT; -} - -/** - * Initialise INT13 console - * - */ -static void int13con_init ( void ) { - uint8_t error; - uint16_t check; - unsigned int discard_c; - unsigned int discard_d; - int rc; - - /* Check for INT13 extensions */ - __asm__ __volatile__ ( REAL_CODE ( "int $0x13\n\t" - "setc %%al\n\t" ) - : "=a" ( error ), "=b" ( check ), - "=c" ( discard_c ), "=d" ( discard_d ) - : "0" ( INT13_EXTENSION_CHECK << 8 ), - "1" ( 0x55aa ), "3" ( INT13CON_DRIVE ) ); - if ( error || ( check != 0xaa55 ) ) { - DBG ( "INT13CON missing extensions (%02x,%04x)\n", - error, check ); - return; - } - - /* Locate log partition */ - if ( ( rc = int13con_find() ) != 0) - return; - - /* Enable console */ - int13con.disabled = 0; -} - -/** - * INT13 console initialisation function - */ -struct init_fn int13con_init_fn __init_fn ( INIT_CONSOLE ) = { - .initialise = int13con_init, -}; - -/** INT13 console driver */ -struct console_driver int13con __console_driver = { - .putchar = int13con_putchar, - .disabled = CONSOLE_DISABLED, - .usage = CONSOLE_INT13, -}; diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/memtop_umalloc.c b/qemu/roms/ipxe/src/arch/i386/interface/pcbios/memtop_umalloc.c deleted file mode 100644 index 957f8e324..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/memtop_umalloc.c +++ /dev/null @@ -1,182 +0,0 @@ -/* - * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** - * @file - * - * External memory allocation - * - */ - -#include <limits.h> -#include <errno.h> -#include <ipxe/uaccess.h> -#include <ipxe/hidemem.h> -#include <ipxe/io.h> -#include <ipxe/memblock.h> -#include <ipxe/umalloc.h> - -/** Alignment of external allocated memory */ -#define EM_ALIGN ( 4 * 1024 ) - -/** Equivalent of NOWHERE for user pointers */ -#define UNOWHERE ( ~UNULL ) - -/** An external memory block */ -struct external_memory { - /** Size of this memory block (excluding this header) */ - size_t size; - /** Block is currently in use */ - int used; -}; - -/** Top of heap */ -static userptr_t top = UNULL; - -/** Bottom of heap (current lowest allocated block) */ -static userptr_t bottom = UNULL; - -/** Remaining space on heap */ -static size_t heap_size; - -/** - * Initialise external heap - * - */ -static void init_eheap ( void ) { - userptr_t base; - - heap_size = largest_memblock ( &base ); - bottom = top = userptr_add ( base, heap_size ); - DBG ( "External heap grows downwards from %lx (size %zx)\n", - user_to_phys ( top, 0 ), heap_size ); -} - -/** - * Collect free blocks - * - */ -static void ecollect_free ( void ) { - struct external_memory extmem; - size_t len; - - /* Walk the free list and collect empty blocks */ - while ( bottom != top ) { - copy_from_user ( &extmem, bottom, -sizeof ( extmem ), - sizeof ( extmem ) ); - if ( extmem.used ) - break; - DBG ( "EXTMEM freeing [%lx,%lx)\n", user_to_phys ( bottom, 0 ), - user_to_phys ( bottom, extmem.size ) ); - len = ( extmem.size + sizeof ( extmem ) ); - bottom = userptr_add ( bottom, len ); - heap_size += len; - } -} - -/** - * Reallocate external memory - * - * @v old_ptr Memory previously allocated by umalloc(), or UNULL - * @v new_size Requested size - * @ret new_ptr Allocated memory, or UNULL - * - * Calling realloc() with a new size of zero is a valid way to free a - * memory block. - */ -static userptr_t memtop_urealloc ( userptr_t ptr, size_t new_size ) { - struct external_memory extmem; - userptr_t new = ptr; - size_t align; - - /* (Re)initialise external memory allocator if necessary */ - if ( bottom == top ) - init_eheap(); - - /* Get block properties into extmem */ - if ( ptr && ( ptr != UNOWHERE ) ) { - /* Determine old size */ - copy_from_user ( &extmem, ptr, -sizeof ( extmem ), - sizeof ( extmem ) ); - } else { - /* Create a zero-length block */ - if ( heap_size < sizeof ( extmem ) ) { - DBG ( "EXTMEM out of space\n" ); - return UNULL; - } - ptr = bottom = userptr_add ( bottom, -sizeof ( extmem ) ); - heap_size -= sizeof ( extmem ); - DBG ( "EXTMEM allocating [%lx,%lx)\n", - user_to_phys ( ptr, 0 ), user_to_phys ( ptr, 0 ) ); - extmem.size = 0; - } - extmem.used = ( new_size > 0 ); - - /* Expand/shrink block if possible */ - if ( ptr == bottom ) { - /* Update block */ - if ( new_size > ( heap_size - extmem.size ) ) { - DBG ( "EXTMEM out of space\n" ); - return UNULL; - } - new = userptr_add ( ptr, - ( new_size - extmem.size ) ); - align = ( user_to_phys ( new, 0 ) & ( EM_ALIGN - 1 ) ); - new_size += align; - new = userptr_add ( new, -align ); - DBG ( "EXTMEM expanding [%lx,%lx) to [%lx,%lx)\n", - user_to_phys ( ptr, 0 ), - user_to_phys ( ptr, extmem.size ), - user_to_phys ( new, 0 ), - user_to_phys ( new, new_size )); - memmove_user ( new, 0, ptr, 0, ( ( extmem.size < new_size ) ? - extmem.size : new_size ) ); - bottom = new; - heap_size -= ( new_size - extmem.size ); - extmem.size = new_size; - } else { - /* Cannot expand; can only pretend to shrink */ - if ( new_size > extmem.size ) { - /* Refuse to expand */ - DBG ( "EXTMEM cannot expand [%lx,%lx)\n", - user_to_phys ( ptr, 0 ), - user_to_phys ( ptr, extmem.size ) ); - return UNULL; - } - } - - /* Write back block properties */ - copy_to_user ( new, -sizeof ( extmem ), &extmem, - sizeof ( extmem ) ); - - /* Collect any free blocks and update hidden memory region */ - ecollect_free(); - hide_umalloc ( user_to_phys ( bottom, ( ( bottom == top ) ? - 0 : -sizeof ( extmem ) ) ), - user_to_phys ( top, 0 ) ); - - return ( new_size ? new : UNOWHERE ); -} - -PROVIDE_UMALLOC ( memtop, urealloc, memtop_urealloc ); diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/pcibios.c b/qemu/roms/ipxe/src/arch/i386/interface/pcbios/pcibios.c deleted file mode 100644 index 34efa0b39..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/pcibios.c +++ /dev/null @@ -1,123 +0,0 @@ -/* - * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <stdint.h> -#include <ipxe/pci.h> -#include <realmode.h> - -/** @file - * - * PCI configuration space access via PCI BIOS - * - */ - -/** - * Determine number of PCI buses within system - * - * @ret num_bus Number of buses - */ -static int pcibios_num_bus ( void ) { - int discard_a, discard_D; - uint8_t max_bus; - - /* We issue this call using flat real mode, to work around a - * bug in some HP BIOSes. - */ - __asm__ __volatile__ ( REAL_CODE ( "call flatten_real_mode\n\t" - "stc\n\t" - "int $0x1a\n\t" - "jnc 1f\n\t" - "xorw %%cx, %%cx\n\t" - "\n1:\n\t" ) - : "=c" ( max_bus ), "=a" ( discard_a ), - "=D" ( discard_D ) - : "a" ( PCIBIOS_INSTALLATION_CHECK >> 16 ), - "D" ( 0 ) - : "ebx", "edx" ); - - return ( max_bus + 1 ); -} - -/** - * Read configuration space via PCI BIOS - * - * @v pci PCI device - * @v command PCI BIOS command - * @v value Value read - * @ret rc Return status code - */ -int pcibios_read ( struct pci_device *pci, uint32_t command, uint32_t *value ){ - int discard_b, discard_D; - int status; - - __asm__ __volatile__ ( REAL_CODE ( "stc\n\t" - "int $0x1a\n\t" - "jnc 1f\n\t" - "xorl %%eax, %%eax\n\t" - "decl %%eax\n\t" - "movl %%eax, %%ecx\n\t" - "\n1:\n\t" ) - : "=a" ( status ), "=b" ( discard_b ), - "=c" ( *value ), "=D" ( discard_D ) - : "a" ( command >> 16 ), "D" ( command ), - "b" ( pci->busdevfn ) - : "edx" ); - - return ( ( status >> 8 ) & 0xff ); -} - -/** - * Write configuration space via PCI BIOS - * - * @v pci PCI device - * @v command PCI BIOS command - * @v value Value to be written - * @ret rc Return status code - */ -int pcibios_write ( struct pci_device *pci, uint32_t command, uint32_t value ){ - int discard_b, discard_c, discard_D; - int status; - - __asm__ __volatile__ ( REAL_CODE ( "stc\n\t" - "int $0x1a\n\t" - "jnc 1f\n\t" - "movb $0xff, %%ah\n\t" - "\n1:\n\t" ) - : "=a" ( status ), "=b" ( discard_b ), - "=c" ( discard_c ), "=D" ( discard_D ) - : "a" ( command >> 16 ), "D" ( command ), - "b" ( pci->busdevfn ), "c" ( value ) - : "edx" ); - - return ( ( status >> 8 ) & 0xff ); -} - -PROVIDE_PCIAPI ( pcbios, pci_num_bus, pcibios_num_bus ); -PROVIDE_PCIAPI_INLINE ( pcbios, pci_read_config_byte ); -PROVIDE_PCIAPI_INLINE ( pcbios, pci_read_config_word ); -PROVIDE_PCIAPI_INLINE ( pcbios, pci_read_config_dword ); -PROVIDE_PCIAPI_INLINE ( pcbios, pci_write_config_byte ); -PROVIDE_PCIAPI_INLINE ( pcbios, pci_write_config_word ); -PROVIDE_PCIAPI_INLINE ( pcbios, pci_write_config_dword ); diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/rtc_entropy.c b/qemu/roms/ipxe/src/arch/i386/interface/pcbios/rtc_entropy.c deleted file mode 100644 index 9aab03c03..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/rtc_entropy.c +++ /dev/null @@ -1,203 +0,0 @@ -/* - * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** @file - * - * RTC-based entropy source - * - */ - -#include <stdint.h> -#include <string.h> -#include <biosint.h> -#include <pic8259.h> -#include <rtc.h> -#include <ipxe/entropy.h> - -/** RTC "interrupt triggered" flag */ -static uint8_t __text16 ( rtc_flag ); -#define rtc_flag __use_text16 ( rtc_flag ) - -/** RTC interrupt handler */ -extern void rtc_isr ( void ); - -/** Previous RTC interrupt handler */ -static struct segoff rtc_old_handler; - -/** - * Hook RTC interrupt handler - * - */ -static void rtc_hook_isr ( void ) { - - /* RTC interrupt handler */ - __asm__ __volatile__ ( - TEXT16_CODE ( "\nrtc_isr:\n\t" - /* Preserve registers */ - "pushw %%ax\n\t" - /* Set "interrupt triggered" flag */ - "cs movb $0x01, %c0\n\t" - /* Read RTC status register C to - * acknowledge interrupt - */ - "movb %3, %%al\n\t" - "outb %%al, %1\n\t" - "inb %2\n\t" - /* Send EOI */ - "movb $0x20, %%al\n\t" - "outb %%al, $0xa0\n\t" - "outb %%al, $0x20\n\t" - /* Restore registers and return */ - "popw %%ax\n\t" - "iret\n\t" ) - : - : "p" ( __from_text16 ( &rtc_flag ) ), - "i" ( CMOS_ADDRESS ), "i" ( CMOS_DATA ), - "i" ( RTC_STATUS_C ) ); - - hook_bios_interrupt ( RTC_INT, ( unsigned int ) rtc_isr, - &rtc_old_handler ); -} - -/** - * Unhook RTC interrupt handler - * - */ -static void rtc_unhook_isr ( void ) { - int rc; - - rc = unhook_bios_interrupt ( RTC_INT, ( unsigned int ) rtc_isr, - &rtc_old_handler ); - assert ( rc == 0 ); /* Should always be able to unhook */ -} - -/** - * Enable RTC interrupts - * - */ -static void rtc_enable_int ( void ) { - uint8_t status_b; - - /* Set Periodic Interrupt Enable bit in status register B */ - outb ( ( RTC_STATUS_B | CMOS_DISABLE_NMI ), CMOS_ADDRESS ); - status_b = inb ( CMOS_DATA ); - outb ( ( RTC_STATUS_B | CMOS_DISABLE_NMI ), CMOS_ADDRESS ); - outb ( ( status_b | RTC_STATUS_B_PIE ), CMOS_DATA ); - - /* Re-enable NMI and reset to default address */ - outb ( CMOS_DEFAULT_ADDRESS, CMOS_ADDRESS ); - inb ( CMOS_DATA ); /* Discard; may be needed on some platforms */ -} - -/** - * Disable RTC interrupts - * - */ -static void rtc_disable_int ( void ) { - uint8_t status_b; - - /* Clear Periodic Interrupt Enable bit in status register B */ - outb ( ( RTC_STATUS_B | CMOS_DISABLE_NMI ), CMOS_ADDRESS ); - status_b = inb ( CMOS_DATA ); - outb ( ( RTC_STATUS_B | CMOS_DISABLE_NMI ), CMOS_ADDRESS ); - outb ( ( status_b & ~RTC_STATUS_B_PIE ), CMOS_DATA ); - - /* Re-enable NMI and reset to default address */ - outb ( CMOS_DEFAULT_ADDRESS, CMOS_ADDRESS ); - inb ( CMOS_DATA ); /* Discard; may be needed on some platforms */ -} - -/** - * Enable entropy gathering - * - * @ret rc Return status code - */ -static int rtc_entropy_enable ( void ) { - - rtc_hook_isr(); - enable_irq ( RTC_IRQ ); - rtc_enable_int(); - - return 0; -} - -/** - * Disable entropy gathering - * - */ -static void rtc_entropy_disable ( void ) { - - rtc_disable_int(); - disable_irq ( RTC_IRQ ); - rtc_unhook_isr(); -} - -/** - * Measure a single RTC tick - * - * @ret delta Length of RTC tick (in TSC units) - */ -uint8_t rtc_sample ( void ) { - uint32_t before; - uint32_t after; - uint32_t temp; - - __asm__ __volatile__ ( - REAL_CODE ( /* Enable interrupts */ - "sti\n\t" - /* Wait for RTC interrupt */ - "cs movb %b2, %c4\n\t" - "\n1:\n\t" - "cs xchgb %b2, %c4\n\t" /* Serialize */ - "testb %b2, %b2\n\t" - "jz 1b\n\t" - /* Read "before" TSC */ - "rdtsc\n\t" - /* Store "before" TSC on stack */ - "pushl %0\n\t" - /* Wait for another RTC interrupt */ - "xorb %b2, %b2\n\t" - "cs movb %b2, %c4\n\t" - "\n1:\n\t" - "cs xchgb %b2, %c4\n\t" /* Serialize */ - "testb %b2, %b2\n\t" - "jz 1b\n\t" - /* Read "after" TSC */ - "rdtsc\n\t" - /* Retrieve "before" TSC on stack */ - "popl %1\n\t" - /* Disable interrupts */ - "cli\n\t" - ) - : "=a" ( after ), "=d" ( before ), "=q" ( temp ) - : "2" ( 0 ), "p" ( __from_text16 ( &rtc_flag ) ) ); - - return ( after - before ); -} - -PROVIDE_ENTROPY_INLINE ( rtc, min_entropy_per_sample ); -PROVIDE_ENTROPY ( rtc, entropy_enable, rtc_entropy_enable ); -PROVIDE_ENTROPY ( rtc, entropy_disable, rtc_entropy_disable ); -PROVIDE_ENTROPY_INLINE ( rtc, get_noise ); diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/rtc_time.c b/qemu/roms/ipxe/src/arch/i386/interface/pcbios/rtc_time.c deleted file mode 100644 index cdbeac8d5..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/rtc_time.c +++ /dev/null @@ -1,142 +0,0 @@ -/* - * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** @file - * - * RTC-based time source - * - */ - -#include <stdint.h> -#include <time.h> -#include <rtc.h> -#include <ipxe/time.h> - -/** - * Read RTC register - * - * @v address Register address - * @ret data Data - */ -static unsigned int rtc_readb ( int address ) { - outb ( address, CMOS_ADDRESS ); - return inb ( CMOS_DATA ); -} - -/** - * Check if RTC update is in progress - * - * @ret is_busy RTC update is in progress - */ -static int rtc_is_busy ( void ) { - return ( rtc_readb ( RTC_STATUS_A ) & RTC_STATUS_A_UPDATE_IN_PROGRESS ); -} - -/** - * Read RTC BCD register - * - * @v address Register address - * @ret value Value - */ -static unsigned int rtc_readb_bcd ( int address ) { - unsigned int bcd; - - bcd = rtc_readb ( address ); - return ( bcd - ( 6 * ( bcd >> 4 ) ) ); -} - -/** - * Read RTC time - * - * @ret time Time, in seconds - */ -static time_t rtc_read_time ( void ) { - unsigned int status_b; - int is_binary; - int is_24hour; - unsigned int ( * read_component ) ( int address ); - struct tm tm; - int is_pm; - unsigned int hour; - time_t time; - - /* Wait for any in-progress update to complete */ - while ( rtc_is_busy() ) {} - - /* Determine RTC mode */ - status_b = rtc_readb ( RTC_STATUS_B ); - is_binary = ( status_b & RTC_STATUS_B_BINARY ); - is_24hour = ( status_b & RTC_STATUS_B_24_HOUR ); - read_component = ( is_binary ? rtc_readb : rtc_readb_bcd ); - - /* Read time values */ - tm.tm_sec = read_component ( RTC_SEC ); - tm.tm_min = read_component ( RTC_MIN ); - hour = read_component ( RTC_HOUR ); - if ( ! is_24hour ) { - is_pm = ( hour >= 80 ); - hour = ( ( ( ( hour & 0x7f ) % 80 ) % 12 ) + - ( is_pm ? 12 : 0 ) ); - } - tm.tm_hour = hour; - tm.tm_mday = read_component ( RTC_MDAY ); - tm.tm_mon = ( read_component ( RTC_MON ) - 1 ); - tm.tm_year = ( read_component ( RTC_YEAR ) + - 100 /* Assume we are in the 21st century, since - * this code was written in 2012 */ ); - - DBGC ( RTC_STATUS_A, "RTCTIME is %04d-%02d-%02d %02d:%02d:%02d " - "(%s,%d-hour)\n", ( tm.tm_year + 1900 ), ( tm.tm_mon + 1 ), - tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec, - ( is_binary ? "binary" : "BCD" ), ( is_24hour ? 24 : 12 ) ); - - /* Convert to seconds since the Epoch */ - time = mktime ( &tm ); - - return time; -} - -/** - * Get current time in seconds - * - * @ret time Time, in seconds - */ -static time_t rtc_now ( void ) { - time_t time = 0; - time_t last_time; - - /* Read time until we get two matching values in a row, in - * case we end up reading a corrupted value in the middle of - * an update. - */ - do { - last_time = time; - time = rtc_read_time(); - } while ( time != last_time ); - - return time; -} - -PROVIDE_TIME ( rtc, time_now, rtc_now ); diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/vesafb.c b/qemu/roms/ipxe/src/arch/i386/interface/pcbios/vesafb.c deleted file mode 100644 index 9cf2bf29e..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pcbios/vesafb.c +++ /dev/null @@ -1,542 +0,0 @@ -/* - * Copyright (C) 2013 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** @file - * - * VESA frame buffer console - * - */ - -#include <stdlib.h> -#include <errno.h> -#include <limits.h> -#include <realmode.h> -#include <ipxe/console.h> -#include <ipxe/io.h> -#include <ipxe/ansicol.h> -#include <ipxe/fbcon.h> -#include <ipxe/vesafb.h> -#include <config/console.h> - -/* Avoid dragging in BIOS console if not otherwise used */ -extern struct console_driver bios_console; -struct console_driver bios_console __attribute__ (( weak )); - -/* Disambiguate the various error causes */ -#define EIO_FAILED __einfo_error ( EINFO_EIO_FAILED ) -#define EINFO_EIO_FAILED \ - __einfo_uniqify ( EINFO_EIO, 0x01, \ - "Function call failed" ) -#define EIO_HARDWARE __einfo_error ( EINFO_EIO_HARDWARE ) -#define EINFO_EIO_HARDWARE \ - __einfo_uniqify ( EINFO_EIO, 0x02, \ - "Not supported in current configuration" ) -#define EIO_MODE __einfo_error ( EINFO_EIO_MODE ) -#define EINFO_EIO_MODE \ - __einfo_uniqify ( EINFO_EIO, 0x03, \ - "Invalid in current video mode" ) -#define EIO_VBE( code ) \ - EUNIQ ( EINFO_EIO, (code), EIO_FAILED, EIO_HARDWARE, EIO_MODE ) - -/* Set default console usage if applicable */ -#if ! ( defined ( CONSOLE_VESAFB ) && CONSOLE_EXPLICIT ( CONSOLE_VESAFB ) ) -#undef CONSOLE_VESAFB -#define CONSOLE_VESAFB ( CONSOLE_USAGE_ALL & ~CONSOLE_USAGE_LOG ) -#endif - -/** Font corresponding to selected character width and height */ -#define VESAFB_FONT VBE_FONT_8x16 - -/* Forward declaration */ -struct console_driver vesafb_console __console_driver; - -/** A VESA frame buffer */ -struct vesafb { - /** Frame buffer console */ - struct fbcon fbcon; - /** Physical start address */ - physaddr_t start; - /** Pixel geometry */ - struct fbcon_geometry pixel; - /** Margin */ - struct fbcon_margin margin; - /** Colour mapping */ - struct fbcon_colour_map map; - /** Font definition */ - struct fbcon_font font; - /** Saved VGA mode */ - uint8_t saved_mode; -}; - -/** The VESA frame buffer */ -static struct vesafb vesafb; - -/** Base memory buffer used for VBE calls */ -union vbe_buffer { - /** VBE controller information block */ - struct vbe_controller_info controller; - /** VBE mode information block */ - struct vbe_mode_info mode; -}; -static union vbe_buffer __bss16 ( vbe_buf ); -#define vbe_buf __use_data16 ( vbe_buf ) - -/** - * Convert VBE status code to iPXE status code - * - * @v status VBE status code - * @ret rc Return status code - */ -static int vesafb_rc ( unsigned int status ) { - unsigned int code; - - if ( ( status & 0xff ) != 0x4f ) - return -ENOTSUP; - code = ( ( status >> 8 ) & 0xff ); - return ( code ? -EIO_VBE ( code ) : 0 ); -} - -/** - * Get font definition - * - */ -static void vesafb_font ( void ) { - struct segoff font; - - /* Get font information - * - * Working around gcc bugs is icky here. The value we want is - * returned in %ebp, but there's no way to specify %ebp in an - * output constraint. We can't put %ebp in the clobber list, - * because this tends to cause random build failures on some - * gcc versions. We can't manually push/pop %ebp and return - * the value via a generic register output constraint, because - * gcc might choose to use %ebp to satisfy that constraint - * (and we have no way to prevent it from so doing). - * - * Work around this hideous mess by using %ecx and %edx as the - * output registers, since they get clobbered anyway. - */ - __asm__ __volatile__ ( REAL_CODE ( "pushw %%bp\n\t" /* gcc bug */ - "int $0x10\n\t" - "movw %%es, %%cx\n\t" - "movw %%bp, %%dx\n\t" - "popw %%bp\n\t" /* gcc bug */ ) - : "=c" ( font.segment ), - "=d" ( font.offset ) - : "a" ( VBE_GET_FONT ), - "b" ( VESAFB_FONT ) ); - DBGC ( &vbe_buf, "VESAFB has font %04x at %04x:%04x\n", - VESAFB_FONT, font.segment, font.offset ); - vesafb.font.start = real_to_user ( font.segment, font.offset ); -} - -/** - * Get VBE mode list - * - * @ret mode_numbers Mode number list (terminated with VBE_MODE_END) - * @ret rc Return status code - * - * The caller is responsible for eventually freeing the mode list. - */ -static int vesafb_mode_list ( uint16_t **mode_numbers ) { - struct vbe_controller_info *controller = &vbe_buf.controller; - userptr_t video_mode_ptr; - uint16_t mode_number; - uint16_t status; - size_t len; - int rc; - - /* Avoid returning uninitialised data on error */ - *mode_numbers = NULL; - - /* Get controller information block */ - controller->vbe_signature = 0; - __asm__ __volatile__ ( REAL_CODE ( "int $0x10" ) - : "=a" ( status ) - : "a" ( VBE_CONTROLLER_INFO ), - "D" ( __from_data16 ( controller ) ) - : "memory", "ebx", "edx" ); - if ( ( rc = vesafb_rc ( status ) ) != 0 ) { - DBGC ( &vbe_buf, "VESAFB could not get controller information: " - "[%04x] %s\n", status, strerror ( rc ) ); - return rc; - } - if ( controller->vbe_signature != VBE_CONTROLLER_SIGNATURE ) { - DBGC ( &vbe_buf, "VESAFB invalid controller signature " - "\"%c%c%c%c\"\n", ( controller->vbe_signature >> 0 ), - ( controller->vbe_signature >> 8 ), - ( controller->vbe_signature >> 16 ), - ( controller->vbe_signature >> 24 ) ); - DBGC_HDA ( &vbe_buf, 0, controller, sizeof ( *controller ) ); - return -EINVAL; - } - DBGC ( &vbe_buf, "VESAFB found VBE version %d.%d with mode list at " - "%04x:%04x\n", controller->vbe_major_version, - controller->vbe_minor_version, - controller->video_mode_ptr.segment, - controller->video_mode_ptr.offset ); - - /* Calculate length of mode list */ - video_mode_ptr = real_to_user ( controller->video_mode_ptr.segment, - controller->video_mode_ptr.offset ); - len = 0; - do { - copy_from_user ( &mode_number, video_mode_ptr, len, - sizeof ( mode_number ) ); - len += sizeof ( mode_number ); - } while ( mode_number != VBE_MODE_END ); - - /* Allocate and fill mode list */ - *mode_numbers = malloc ( len ); - if ( ! *mode_numbers ) - return -ENOMEM; - copy_from_user ( *mode_numbers, video_mode_ptr, 0, len ); - - return 0; -} - -/** - * Get video mode information - * - * @v mode_number Mode number - * @ret rc Return status code - */ -static int vesafb_mode_info ( unsigned int mode_number ) { - struct vbe_mode_info *mode = &vbe_buf.mode; - uint16_t status; - int rc; - - /* Get mode information */ - __asm__ __volatile__ ( REAL_CODE ( "int $0x10" ) - : "=a" ( status ) - : "a" ( VBE_MODE_INFO ), - "c" ( mode_number ), - "D" ( __from_data16 ( mode ) ) - : "memory" ); - if ( ( rc = vesafb_rc ( status ) ) != 0 ) { - DBGC ( &vbe_buf, "VESAFB could not get mode %04x information: " - "[%04x] %s\n", mode_number, status, strerror ( rc ) ); - return rc; - } - DBGC ( &vbe_buf, "VESAFB mode %04x %dx%d %dbpp(%d:%d:%d:%d) model " - "%02x [x%d]%s%s%s%s%s\n", mode_number, mode->x_resolution, - mode->y_resolution, mode->bits_per_pixel, mode->rsvd_mask_size, - mode->red_mask_size, mode->green_mask_size, mode->blue_mask_size, - mode->memory_model, ( mode->number_of_image_pages + 1 ), - ( ( mode->mode_attributes & VBE_MODE_ATTR_SUPPORTED ) ? - "" : " [unsupported]" ), - ( ( mode->mode_attributes & VBE_MODE_ATTR_TTY ) ? - " [tty]" : "" ), - ( ( mode->mode_attributes & VBE_MODE_ATTR_GRAPHICS ) ? - "" : " [text]" ), - ( ( mode->mode_attributes & VBE_MODE_ATTR_LINEAR ) ? - "" : " [nonlinear]" ), - ( ( mode->mode_attributes & VBE_MODE_ATTR_TRIPLE_BUF ) ? - " [buf]" : "" ) ); - - return 0; -} - -/** - * Set video mode - * - * @v mode_number Mode number - * @ret rc Return status code - */ -static int vesafb_set_mode ( unsigned int mode_number ) { - struct vbe_mode_info *mode = &vbe_buf.mode; - uint16_t status; - int rc; - - /* Get mode information */ - if ( ( rc = vesafb_mode_info ( mode_number ) ) != 0 ) - return rc; - - /* Record mode parameters */ - vesafb.start = mode->phys_base_ptr; - vesafb.pixel.width = mode->x_resolution; - vesafb.pixel.height = mode->y_resolution; - vesafb.pixel.len = ( ( mode->bits_per_pixel + 7 ) / 8 ); - vesafb.pixel.stride = mode->bytes_per_scan_line; - DBGC ( &vbe_buf, "VESAFB mode %04x has frame buffer at %08x\n", - mode_number, mode->phys_base_ptr ); - - /* Initialise font colours */ - vesafb.map.red_scale = ( 8 - mode->red_mask_size ); - vesafb.map.green_scale = ( 8 - mode->green_mask_size ); - vesafb.map.blue_scale = ( 8 - mode->blue_mask_size ); - vesafb.map.red_lsb = mode->red_field_position; - vesafb.map.green_lsb = mode->green_field_position; - vesafb.map.blue_lsb = mode->blue_field_position; - - /* Select this mode */ - __asm__ __volatile__ ( REAL_CODE ( "int $0x10" ) - : "=a" ( status ) - : "a" ( VBE_SET_MODE ), - "b" ( mode_number ) ); - if ( ( rc = vesafb_rc ( status ) ) != 0 ) { - DBGC ( &vbe_buf, "VESAFB could not set mode %04x: [%04x] %s\n", - mode_number, status, strerror ( rc ) ); - return rc; - } - - return 0; -} - -/** - * Select video mode - * - * @v mode_numbers Mode number list (terminated with VBE_MODE_END) - * @v min_width Minimum required width (in pixels) - * @v min_height Minimum required height (in pixels) - * @v min_bpp Minimum required colour depth (in bits per pixel) - * @ret mode_number Mode number, or negative error - */ -static int vesafb_select_mode ( const uint16_t *mode_numbers, - unsigned int min_width, unsigned int min_height, - unsigned int min_bpp ) { - struct vbe_mode_info *mode = &vbe_buf.mode; - int best_mode_number = -ENOENT; - unsigned int best_score = INT_MAX; - unsigned int score; - uint16_t mode_number; - int rc; - - /* Find the first suitable mode */ - while ( ( mode_number = *(mode_numbers++) ) != VBE_MODE_END ) { - - /* Force linear mode variant */ - mode_number |= VBE_MODE_LINEAR; - - /* Get mode information */ - if ( ( rc = vesafb_mode_info ( mode_number ) ) != 0 ) - continue; - - /* Skip unusable modes */ - if ( ( mode->mode_attributes & ( VBE_MODE_ATTR_SUPPORTED | - VBE_MODE_ATTR_GRAPHICS | - VBE_MODE_ATTR_LINEAR ) ) != - ( VBE_MODE_ATTR_SUPPORTED | VBE_MODE_ATTR_GRAPHICS | - VBE_MODE_ATTR_LINEAR ) ) { - continue; - } - if ( mode->memory_model != VBE_MODE_MODEL_DIRECT_COLOUR ) - continue; - - /* Skip modes not meeting the requirements */ - if ( ( mode->x_resolution < min_width ) || - ( mode->y_resolution < min_height ) || - ( mode->bits_per_pixel < min_bpp ) ) { - continue; - } - - /* Select this mode if it has the best (i.e. lowest) - * score. We choose the scoring system to favour - * modes close to the specified width and height; - * within modes of the same width and height we prefer - * a higher colour depth. - */ - score = ( ( mode->x_resolution * mode->y_resolution ) - - mode->bits_per_pixel ); - if ( score < best_score ) { - best_mode_number = mode_number; - best_score = score; - } - } - - if ( best_mode_number >= 0 ) { - DBGC ( &vbe_buf, "VESAFB selected mode %04x\n", - best_mode_number ); - } else { - DBGC ( &vbe_buf, "VESAFB found no suitable mode\n" ); - } - - return best_mode_number; -} - -/** - * Restore video mode - * - */ -static void vesafb_restore ( void ) { - uint32_t discard_a; - - /* Restore saved VGA mode */ - __asm__ __volatile__ ( REAL_CODE ( "int $0x10" ) - : "=a" ( discard_a ) - : "a" ( VBE_SET_VGA_MODE | vesafb.saved_mode ) ); - DBGC ( &vbe_buf, "VESAFB restored VGA mode %#02x\n", - vesafb.saved_mode ); -} - -/** - * Initialise VESA frame buffer - * - * @v config Console configuration, or NULL to reset - * @ret rc Return status code - */ -static int vesafb_init ( struct console_configuration *config ) { - uint32_t discard_b; - uint16_t *mode_numbers; - unsigned int xgap; - unsigned int ygap; - unsigned int left; - unsigned int right; - unsigned int top; - unsigned int bottom; - int mode_number; - int rc; - - /* Record current VGA mode */ - __asm__ __volatile__ ( REAL_CODE ( "int $0x10" ) - : "=a" ( vesafb.saved_mode ), "=b" ( discard_b ) - : "a" ( VBE_GET_VGA_MODE ) ); - DBGC ( &vbe_buf, "VESAFB saved VGA mode %#02x\n", vesafb.saved_mode ); - - /* Get VESA mode list */ - if ( ( rc = vesafb_mode_list ( &mode_numbers ) ) != 0 ) - goto err_mode_list; - - /* Select mode */ - if ( ( mode_number = vesafb_select_mode ( mode_numbers, config->width, - config->height, - config->depth ) ) < 0 ) { - rc = mode_number; - goto err_select_mode; - } - - /* Set mode */ - if ( ( rc = vesafb_set_mode ( mode_number ) ) != 0 ) - goto err_set_mode; - - /* Calculate margin. If the actual screen size is larger than - * the requested screen size, then update the margins so that - * the margin remains relative to the requested screen size. - * (As an exception, if a zero margin was specified then treat - * this as meaning "expand to edge of actual screen".) - */ - xgap = ( vesafb.pixel.width - config->width ); - ygap = ( vesafb.pixel.height - config->height ); - left = ( xgap / 2 ); - right = ( xgap - left ); - top = ( ygap / 2 ); - bottom = ( ygap - top ); - vesafb.margin.left = ( config->left + ( config->left ? left : 0 ) ); - vesafb.margin.right = ( config->right + ( config->right ? right : 0 ) ); - vesafb.margin.top = ( config->top + ( config->top ? top : 0 ) ); - vesafb.margin.bottom = - ( config->bottom + ( config->bottom ? bottom : 0 ) ); - - /* Get font data */ - vesafb_font(); - - /* Initialise frame buffer console */ - if ( ( rc = fbcon_init ( &vesafb.fbcon, phys_to_user ( vesafb.start ), - &vesafb.pixel, &vesafb.margin, &vesafb.map, - &vesafb.font, config->pixbuf ) ) != 0 ) - goto err_fbcon_init; - - free ( mode_numbers ); - return 0; - - fbcon_fini ( &vesafb.fbcon ); - err_fbcon_init: - err_set_mode: - vesafb_restore(); - err_select_mode: - free ( mode_numbers ); - err_mode_list: - return rc; -} - -/** - * Finalise VESA frame buffer - * - */ -static void vesafb_fini ( void ) { - - /* Finalise frame buffer console */ - fbcon_fini ( &vesafb.fbcon ); - - /* Restore saved VGA mode */ - vesafb_restore(); -} - -/** - * Print a character to current cursor position - * - * @v character Character - */ -static void vesafb_putchar ( int character ) { - - fbcon_putchar ( &vesafb.fbcon, character ); -} - -/** - * Configure console - * - * @v config Console configuration, or NULL to reset - * @ret rc Return status code - */ -static int vesafb_configure ( struct console_configuration *config ) { - int rc; - - /* Reset console, if applicable */ - if ( ! vesafb_console.disabled ) { - vesafb_fini(); - bios_console.disabled &= ~CONSOLE_DISABLED_OUTPUT; - ansicol_reset_magic(); - } - vesafb_console.disabled = CONSOLE_DISABLED; - - /* Do nothing more unless we have a usable configuration */ - if ( ( config == NULL ) || - ( config->width == 0 ) || ( config->height == 0 ) ) { - return 0; - } - - /* Initialise VESA frame buffer */ - if ( ( rc = vesafb_init ( config ) ) != 0 ) - return rc; - - /* Mark console as enabled */ - vesafb_console.disabled = 0; - bios_console.disabled |= CONSOLE_DISABLED_OUTPUT; - - /* Set magic colour to transparent if we have a background picture */ - if ( config->pixbuf ) - ansicol_set_magic_transparent(); - - return 0; -} - -/** VESA frame buffer console driver */ -struct console_driver vesafb_console __console_driver = { - .usage = CONSOLE_VESAFB, - .putchar = vesafb_putchar, - .configure = vesafb_configure, - .disabled = CONSOLE_DISABLED, -}; diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_call.c b/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_call.c deleted file mode 100644 index 104313666..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_call.c +++ /dev/null @@ -1,354 +0,0 @@ -/* - * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <ipxe/uaccess.h> -#include <ipxe/init.h> -#include <ipxe/profile.h> -#include <setjmp.h> -#include <registers.h> -#include <biosint.h> -#include <pxe.h> -#include <pxe_call.h> - -/** @file - * - * PXE API entry point - */ - -/* Disambiguate the various error causes */ -#define EINFO_EPXENBP \ - __einfo_uniqify ( EINFO_EPLATFORM, 0x01, \ - "External PXE NBP error" ) -#define EPXENBP( status ) EPLATFORM ( EINFO_EPXENBP, status ) - -/** Vector for chaining INT 1A */ -extern struct segoff __text16 ( pxe_int_1a_vector ); -#define pxe_int_1a_vector __use_text16 ( pxe_int_1a_vector ) - -/** INT 1A handler */ -extern void pxe_int_1a ( void ); - -/** INT 1A hooked flag */ -static int int_1a_hooked = 0; - -/** PXENV_UNDI_TRANSMIT API call profiler */ -static struct profiler pxe_api_tx_profiler __profiler = - { .name = "pxeapi.tx" }; - -/** PXENV_UNDI_ISR API call profiler */ -static struct profiler pxe_api_isr_profiler __profiler = - { .name = "pxeapi.isr" }; - -/** PXE unknown API call profiler - * - * This profiler can be used to measure the overhead of a dummy PXE - * API call. - */ -static struct profiler pxe_api_unknown_profiler __profiler = - { .name = "pxeapi.unknown" }; - -/** Miscellaneous PXE API call profiler */ -static struct profiler pxe_api_misc_profiler __profiler = - { .name = "pxeapi.misc" }; - -/** - * Handle an unknown PXE API call - * - * @v pxenv_unknown Pointer to a struct s_PXENV_UNKNOWN - * @ret #PXENV_EXIT_FAILURE Always - * @err #PXENV_STATUS_UNSUPPORTED Always - */ -static PXENV_EXIT_t pxenv_unknown ( struct s_PXENV_UNKNOWN *pxenv_unknown ) { - pxenv_unknown->Status = PXENV_STATUS_UNSUPPORTED; - return PXENV_EXIT_FAILURE; -} - -/** Unknown PXE API call list */ -struct pxe_api_call pxenv_unknown_api __pxe_api_call = - PXE_API_CALL ( PXENV_UNKNOWN, pxenv_unknown, struct s_PXENV_UNKNOWN ); - -/** - * Locate PXE API call - * - * @v opcode Opcode - * @ret call PXE API call, or NULL - */ -static struct pxe_api_call * find_pxe_api_call ( uint16_t opcode ) { - struct pxe_api_call *call; - - for_each_table_entry ( call, PXE_API_CALLS ) { - if ( call->opcode == opcode ) - return call; - } - return NULL; -} - -/** - * Determine applicable profiler (for debugging) - * - * @v opcode PXE opcode - * @ret profiler Profiler - */ -static struct profiler * pxe_api_profiler ( unsigned int opcode ) { - - /* Determine applicable profiler */ - switch ( opcode ) { - case PXENV_UNDI_TRANSMIT: - return &pxe_api_tx_profiler; - case PXENV_UNDI_ISR: - return &pxe_api_isr_profiler; - case PXENV_UNKNOWN: - return &pxe_api_unknown_profiler; - default: - return &pxe_api_misc_profiler; - } -} - -/** - * Dispatch PXE API call - * - * @v bx PXE opcode - * @v es:di Address of PXE parameter block - * @ret ax PXE exit code - */ -__asmcall void pxe_api_call ( struct i386_all_regs *ix86 ) { - uint16_t opcode = ix86->regs.bx; - userptr_t uparams = real_to_user ( ix86->segs.es, ix86->regs.di ); - struct profiler *profiler = pxe_api_profiler ( opcode ); - struct pxe_api_call *call; - union u_PXENV_ANY params; - PXENV_EXIT_t ret; - - /* Start profiling */ - profile_start ( profiler ); - - /* Locate API call */ - call = find_pxe_api_call ( opcode ); - if ( ! call ) { - DBGC ( &pxe_netdev, "PXENV_UNKNOWN_%04x\n", opcode ); - call = &pxenv_unknown_api; - } - - /* Copy parameter block from caller */ - copy_from_user ( ¶ms, uparams, 0, call->params_len ); - - /* Set default status in case child routine fails to do so */ - params.Status = PXENV_STATUS_FAILURE; - - /* Hand off to relevant API routine */ - ret = call->entry ( ¶ms ); - - /* Copy modified parameter block back to caller and return */ - copy_to_user ( uparams, 0, ¶ms, call->params_len ); - ix86->regs.ax = ret; - - /* Stop profiling, if applicable */ - profile_stop ( profiler ); -} - -/** - * Dispatch weak PXE API call with PXE stack available - * - * @v ix86 Registers for PXE call - * @ret present Zero (PXE stack present) - */ -int pxe_api_call_weak ( struct i386_all_regs *ix86 ) { - pxe_api_call ( ix86 ); - return 0; -} - -/** - * Dispatch PXE loader call - * - * @v es:di Address of PXE parameter block - * @ret ax PXE exit code - */ -__asmcall void pxe_loader_call ( struct i386_all_regs *ix86 ) { - userptr_t uparams = real_to_user ( ix86->segs.es, ix86->regs.di ); - struct s_UNDI_LOADER params; - PXENV_EXIT_t ret; - - /* Copy parameter block from caller */ - copy_from_user ( ¶ms, uparams, 0, sizeof ( params ) ); - - /* Fill in ROM segment address */ - ppxe.UNDIROMID.segment = ix86->segs.ds; - - /* Set default status in case child routine fails to do so */ - params.Status = PXENV_STATUS_FAILURE; - - /* Call UNDI loader */ - ret = undi_loader ( ¶ms ); - - /* Copy modified parameter block back to caller and return */ - copy_to_user ( uparams, 0, ¶ms, sizeof ( params ) ); - ix86->regs.ax = ret; -} - -/** - * Calculate byte checksum as used by PXE - * - * @v data Data - * @v size Length of data - * @ret sum Checksum - */ -static uint8_t pxe_checksum ( void *data, size_t size ) { - uint8_t *bytes = data; - uint8_t sum = 0; - - while ( size-- ) { - sum += *bytes++; - } - return sum; -} - -/** - * Initialise !PXE and PXENV+ structures - * - */ -static void pxe_init_structures ( void ) { - uint32_t rm_cs_phys = ( rm_cs << 4 ); - uint32_t rm_ds_phys = ( rm_ds << 4 ); - - /* Fill in missing segment fields */ - ppxe.EntryPointSP.segment = rm_cs; - ppxe.EntryPointESP.segment = rm_cs; - ppxe.Stack.segment_address = rm_ds; - ppxe.Stack.Physical_address = rm_ds_phys; - ppxe.UNDIData.segment_address = rm_ds; - ppxe.UNDIData.Physical_address = rm_ds_phys; - ppxe.UNDICode.segment_address = rm_cs; - ppxe.UNDICode.Physical_address = rm_cs_phys; - ppxe.UNDICodeWrite.segment_address = rm_cs; - ppxe.UNDICodeWrite.Physical_address = rm_cs_phys; - pxenv.RMEntry.segment = rm_cs; - pxenv.StackSeg = rm_ds; - pxenv.UNDIDataSeg = rm_ds; - pxenv.UNDICodeSeg = rm_cs; - pxenv.PXEPtr.segment = rm_cs; - - /* Update checksums */ - ppxe.StructCksum -= pxe_checksum ( &ppxe, sizeof ( ppxe ) ); - pxenv.Checksum -= pxe_checksum ( &pxenv, sizeof ( pxenv ) ); -} - -/** PXE structure initialiser */ -struct init_fn pxe_init_fn __init_fn ( INIT_NORMAL ) = { - .initialise = pxe_init_structures, -}; - -/** - * Activate PXE stack - * - * @v netdev Net device to use as PXE net device - */ -void pxe_activate ( struct net_device *netdev ) { - - /* Ensure INT 1A is hooked */ - if ( ! int_1a_hooked ) { - hook_bios_interrupt ( 0x1a, ( unsigned int ) pxe_int_1a, - &pxe_int_1a_vector ); - devices_get(); - int_1a_hooked = 1; - } - - /* Set PXE network device */ - pxe_set_netdev ( netdev ); -} - -/** - * Deactivate PXE stack - * - * @ret rc Return status code - */ -int pxe_deactivate ( void ) { - int rc; - - /* Clear PXE network device */ - pxe_set_netdev ( NULL ); - - /* Ensure INT 1A is unhooked, if possible */ - if ( int_1a_hooked ) { - if ( ( rc = unhook_bios_interrupt ( 0x1a, - (unsigned int) pxe_int_1a, - &pxe_int_1a_vector ))!= 0){ - DBG ( "Could not unhook INT 1A: %s\n", - strerror ( rc ) ); - return rc; - } - devices_put(); - int_1a_hooked = 0; - } - - return 0; -} - -/** Jump buffer for PXENV_RESTART_TFTP */ -rmjmp_buf pxe_restart_nbp; - -/** - * Start PXE NBP at 0000:7c00 - * - * @ret rc Return status code - */ -int pxe_start_nbp ( void ) { - int jmp; - int discard_b, discard_c, discard_d, discard_D; - uint16_t status; - - /* Allow restarting NBP via PXENV_RESTART_TFTP */ - jmp = rmsetjmp ( pxe_restart_nbp ); - if ( jmp ) - DBG ( "Restarting NBP (%x)\n", jmp ); - - /* Far call to PXE NBP */ - __asm__ __volatile__ ( REAL_CODE ( "pushl %%ebp\n\t" /* gcc bug */ - "movw %%cx, %%es\n\t" - "pushw %%es\n\t" - "pushw %%di\n\t" - "sti\n\t" - "lcall $0, $0x7c00\n\t" - "popl %%ebp\n\t" /* discard */ - "popl %%ebp\n\t" /* gcc bug */ ) - : "=a" ( status ), "=b" ( discard_b ), - "=c" ( discard_c ), "=d" ( discard_d ), - "=D" ( discard_D ) - : "a" ( 0 ), "b" ( __from_text16 ( &pxenv ) ), - "c" ( rm_cs ), - "d" ( virt_to_phys ( &pxenv ) ), - "D" ( __from_text16 ( &ppxe ) ) - : "esi", "memory" ); - if ( status ) - return -EPXENBP ( status ); - - return 0; -} - -REQUIRING_SYMBOL ( pxe_api_call ); -REQUIRE_OBJECT ( pxe_preboot ); -REQUIRE_OBJECT ( pxe_undi ); -REQUIRE_OBJECT ( pxe_udp ); -REQUIRE_OBJECT ( pxe_tftp ); -REQUIRE_OBJECT ( pxe_file ); diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_entry.S b/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_entry.S deleted file mode 100644 index 07852cd50..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_entry.S +++ /dev/null @@ -1,221 +0,0 @@ -/* - * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - * - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ) - - .arch i386 - -/**************************************************************************** - * !PXE structure - **************************************************************************** - */ - .section ".text16.data", "aw", @progbits - .globl ppxe - .align 16 -ppxe: - .ascii "!PXE" /* Signature */ - .byte pxe_length /* StructLength */ - .byte 0 /* StructCksum */ - .byte 0 /* StructRev */ - .byte 0 /* reserved_1 */ - .word undiheader, 0 /* UNDIROMID */ - .word 0, 0 /* BaseROMID */ - .word pxe_entry_sp, 0 /* EntryPointSP */ - .word pxe_entry_esp, 0 /* EntryPointESP */ - .word -1, -1 /* StatusCallout */ - .byte 0 /* reserved_2 */ - .byte SegDescCnt /* SegDescCnt */ - .word 0 /* FirstSelector */ -pxe_segments: - .word 0, 0, 0, _data16_memsz /* Stack */ - .word 0, 0, 0, _data16_memsz /* UNDIData */ - .word 0, 0, 0, _text16_memsz /* UNDICode */ - .word 0, 0, 0, _text16_memsz /* UNDICodeWrite */ - .word 0, 0, 0, 0 /* BC_Data */ - .word 0, 0, 0, 0 /* BC_Code */ - .word 0, 0, 0, 0 /* BC_CodeWrite */ - .equ SegDescCnt, ( ( . - pxe_segments ) / 8 ) - .equ pxe_length, . - ppxe - .size ppxe, . - ppxe - - /* Define undiheader=0 as a weak symbol for non-ROM builds */ - .section ".weak", "a", @nobits - .weak undiheader -undiheader: - -/**************************************************************************** - * PXENV+ structure - **************************************************************************** - */ - .section ".text16.data", "aw", @progbits - .globl pxenv - .align 16 -pxenv: - .ascii "PXENV+" /* Signature */ - .word 0x0201 /* Version */ - .byte pxenv_length /* Length */ - .byte 0 /* Checksum */ - .word pxenv_entry, 0 /* RMEntry */ - .long 0 /* PMEntry */ - .word 0 /* PMSelector */ - .word 0 /* StackSeg */ - .word _data16_memsz /* StackSize */ - .word 0 /* BC_CodeSeg */ - .word 0 /* BC_CodeSize */ - .word 0 /* BC_DataSeg */ - .word 0 /* BC_DataSize */ - .word 0 /* UNDIDataSeg */ - .word _data16_memsz /* UNDIDataSize */ - .word 0 /* UNDICodeSeg */ - .word _text16_memsz /* UNDICodeSize */ - .word ppxe, 0 /* PXEPtr */ - .equ pxenv_length, . - pxenv - .size pxenv, . - pxenv - -/**************************************************************************** - * pxenv_entry (16-bit far call) - * - * PXE API call PXENV+ entry point - * - * Parameters: - * %es:di : Far pointer to PXE parameter structure - * %bx : PXE API call - * Returns: - * %ax : PXE exit status - * Corrupts: - * none - **************************************************************************** - */ - /* Wyse Streaming Manager server (WLDRM13.BIN) assumes that - * the PXENV+ entry point is at UNDI_CS:0000; apparently, - * somebody at Wyse has difficulty distinguishing between the - * words "may" and "must"... - */ - .section ".text16.null", "ax", @progbits - .code16 -pxenv_null_entry: - jmp pxenv_entry - - .section ".text16", "ax", @progbits - .code16 -pxenv_entry: - pushl $pxe_api_call - pushw %cs - call prot_call - addl $4, %esp - lret - .size pxenv_entry, . - pxenv_entry - -/**************************************************************************** - * pxe_entry - * - * PXE API call !PXE entry point - * - * Parameters: - * stack : Far pointer to PXE parameter structure - * stack : PXE API call - * Returns: - * %ax : PXE exit status - * Corrupts: - * none - **************************************************************************** - */ - .section ".text16", "ax", @progbits - .code16 -pxe_entry: -pxe_entry_sp: - /* Preserve original %esp */ - pushl %esp - /* Zero high word of %esp to allow use of common code */ - movzwl %sp, %esp - jmp pxe_entry_common -pxe_entry_esp: - /* Preserve %esp to match behaviour of pxe_entry_sp */ - pushl %esp -pxe_entry_common: - /* Save PXENV+ API call registers */ - pushw %es - pushw %di - pushw %bx - /* Load !PXE parameters from stack into PXENV+ registers */ - addr32 movw 18(%esp), %bx - movw %bx, %es - addr32 movw 16(%esp), %di - addr32 movw 14(%esp), %bx - /* Make call as for PXENV+ */ - pushw %cs - call pxenv_entry - /* Restore PXENV+ registers */ - popw %bx - popw %di - popw %es - /* Restore original %esp and return */ - popl %esp - lret - .size pxe_entry, . - pxe_entry - -/**************************************************************************** - * pxe_int_1a - * - * PXE INT 1A handler - * - * Parameters: - * %ax : 0x5650 - * Returns: - * %ax : 0x564e - * %es:bx : Far pointer to the PXENV+ structure - * %edx : Physical address of the PXENV+ structure - * CF cleared - * Corrupts: - * none - **************************************************************************** - */ - .section ".text16", "ax", @progbits - .code16 - .globl pxe_int_1a -pxe_int_1a: - pushfw - cmpw $0x5650, %ax - jne 1f - /* INT 1A,5650 - PXE installation check */ - xorl %edx, %edx - movw %cs, %dx - movw %dx, %es - movw $pxenv, %bx - shll $4, %edx - addl $pxenv, %edx - movw $0x564e, %ax - pushw %bp - movw %sp, %bp - andb $~0x01, 8(%bp) /* Clear CF on return */ - popw %bp - popfw - iret -1: /* INT 1A,other - pass through */ - popfw - ljmp *%cs:pxe_int_1a_vector - - .section ".text16.data", "aw", @progbits - .globl pxe_int_1a_vector -pxe_int_1a_vector: .long 0 diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_exit_hook.c b/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_exit_hook.c deleted file mode 100644 index f92dae0d1..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_exit_hook.c +++ /dev/null @@ -1,65 +0,0 @@ -/** @file - * - * PXE exit hook - * - */ - -/* - * Copyright (C) 2010 Shao Miller <shao.miller@yrdsb.edu.on.ca>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <stdint.h> -#include <realmode.h> -#include <pxe.h> - -/** PXE exit hook */ -extern segoff_t __data16 ( pxe_exit_hook ); -#define pxe_exit_hook __use_data16 ( pxe_exit_hook ) - -/** - * FILE EXIT HOOK - * - * @v file_exit_hook Pointer to a struct - * s_PXENV_FILE_EXIT_HOOK - * @v s_PXENV_FILE_EXIT_HOOK::Hook SEG16:OFF16 to jump to - * @ret #PXENV_EXIT_SUCCESS Successfully set hook - * @ret #PXENV_EXIT_FAILURE We're not an NBP build - * @ret s_PXENV_FILE_EXIT_HOOK::Status PXE status code - * - */ -static PXENV_EXIT_t -pxenv_file_exit_hook ( struct s_PXENV_FILE_EXIT_HOOK *file_exit_hook ) { - DBG ( "PXENV_FILE_EXIT_HOOK" ); - - /* We'll jump to the specified SEG16:OFF16 during exit */ - pxe_exit_hook.segment = file_exit_hook->Hook.segment; - pxe_exit_hook.offset = file_exit_hook->Hook.offset; - file_exit_hook->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/** PXE file API */ -struct pxe_api_call pxe_file_api_exit_hook __pxe_api_call = - PXE_API_CALL ( PXENV_FILE_EXIT_HOOK, pxenv_file_exit_hook, - struct s_PXENV_FILE_EXIT_HOOK ); diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_file.c b/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_file.c deleted file mode 100644 index 456ffb5fd..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_file.c +++ /dev/null @@ -1,346 +0,0 @@ -/** @file - * - * PXE FILE API - * - */ - -#include <stdlib.h> -#include <stdio.h> -#include <errno.h> -#include <byteswap.h> -#include <ipxe/uaccess.h> -#include <ipxe/posix_io.h> -#include <ipxe/features.h> -#include <pxe.h> -#include <realmode.h> - -/* - * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -FEATURE ( FEATURE_MISC, "PXEXT", DHCP_EB_FEATURE_PXE_EXT, 2 ); - -/** - * FILE OPEN - * - * @v file_open Pointer to a struct s_PXENV_FILE_OPEN - * @v s_PXENV_FILE_OPEN::FileName URL of file to open - * @ret #PXENV_EXIT_SUCCESS File was opened - * @ret #PXENV_EXIT_FAILURE File was not opened - * @ret s_PXENV_FILE_OPEN::Status PXE status code - * @ret s_PXENV_FILE_OPEN::FileHandle Handle of opened file - * - */ -static PXENV_EXIT_t pxenv_file_open ( struct s_PXENV_FILE_OPEN *file_open ) { - userptr_t filename; - size_t filename_len; - int fd; - - DBG ( "PXENV_FILE_OPEN" ); - - /* Copy name from external program, and open it */ - filename = real_to_user ( file_open->FileName.segment, - file_open->FileName.offset ); - filename_len = strlen_user ( filename, 0 ); - { - char uri_string[ filename_len + 1 ]; - - copy_from_user ( uri_string, filename, 0, - sizeof ( uri_string ) ); - DBG ( " %s", uri_string ); - fd = open ( uri_string ); - } - - if ( fd < 0 ) { - file_open->Status = PXENV_STATUS ( fd ); - return PXENV_EXIT_FAILURE; - } - - DBG ( " as file %d", fd ); - - file_open->FileHandle = fd; - file_open->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/** - * FILE CLOSE - * - * @v file_close Pointer to a struct s_PXENV_FILE_CLOSE - * @v s_PXENV_FILE_CLOSE::FileHandle File handle - * @ret #PXENV_EXIT_SUCCESS File was closed - * @ret #PXENV_EXIT_FAILURE File was not closed - * @ret s_PXENV_FILE_CLOSE::Status PXE status code - * - */ -static PXENV_EXIT_t pxenv_file_close ( struct s_PXENV_FILE_CLOSE *file_close ) { - - DBG ( "PXENV_FILE_CLOSE %d", file_close->FileHandle ); - - close ( file_close->FileHandle ); - file_close->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/** - * FILE SELECT - * - * @v file_select Pointer to a struct s_PXENV_FILE_SELECT - * @v s_PXENV_FILE_SELECT::FileHandle File handle - * @ret #PXENV_EXIT_SUCCESS File has been checked for readiness - * @ret #PXENV_EXIT_FAILURE File has not been checked for readiness - * @ret s_PXENV_FILE_SELECT::Status PXE status code - * @ret s_PXENV_FILE_SELECT::Ready Indication of readiness - * - */ -static PXENV_EXIT_t -pxenv_file_select ( struct s_PXENV_FILE_SELECT *file_select ) { - fd_set fdset; - int ready; - - DBG ( "PXENV_FILE_SELECT %d", file_select->FileHandle ); - - FD_ZERO ( &fdset ); - FD_SET ( file_select->FileHandle, &fdset ); - if ( ( ready = select ( &fdset, 0 ) ) < 0 ) { - file_select->Status = PXENV_STATUS ( ready ); - return PXENV_EXIT_FAILURE; - } - - file_select->Ready = ( ready ? RDY_READ : 0 ); - file_select->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/** - * FILE READ - * - * @v file_read Pointer to a struct s_PXENV_FILE_READ - * @v s_PXENV_FILE_READ::FileHandle File handle - * @v s_PXENV_FILE_READ::BufferSize Size of data buffer - * @v s_PXENV_FILE_READ::Buffer Data buffer - * @ret #PXENV_EXIT_SUCCESS Data has been read from file - * @ret #PXENV_EXIT_FAILURE Data has not been read from file - * @ret s_PXENV_FILE_READ::Status PXE status code - * @ret s_PXENV_FILE_READ::Ready Indication of readiness - * @ret s_PXENV_FILE_READ::BufferSize Length of data read - * - */ -static PXENV_EXIT_t pxenv_file_read ( struct s_PXENV_FILE_READ *file_read ) { - userptr_t buffer; - ssize_t len; - - DBG ( "PXENV_FILE_READ %d to %04x:%04x+%04x", file_read->FileHandle, - file_read->Buffer.segment, file_read->Buffer.offset, - file_read->BufferSize ); - - buffer = real_to_user ( file_read->Buffer.segment, - file_read->Buffer.offset ); - if ( ( len = read_user ( file_read->FileHandle, buffer, 0, - file_read->BufferSize ) ) < 0 ) { - file_read->Status = PXENV_STATUS ( len ); - return PXENV_EXIT_FAILURE; - } - - DBG ( " read %04zx", ( ( size_t ) len ) ); - - file_read->BufferSize = len; - file_read->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/** - * GET FILE SIZE - * - * @v get_file_size Pointer to a struct s_PXENV_GET_FILE_SIZE - * @v s_PXENV_GET_FILE_SIZE::FileHandle File handle - * @ret #PXENV_EXIT_SUCCESS File size has been determined - * @ret #PXENV_EXIT_FAILURE File size has not been determined - * @ret s_PXENV_GET_FILE_SIZE::Status PXE status code - * @ret s_PXENV_GET_FILE_SIZE::FileSize Size of file - */ -static PXENV_EXIT_t -pxenv_get_file_size ( struct s_PXENV_GET_FILE_SIZE *get_file_size ) { - ssize_t filesize; - - DBG ( "PXENV_GET_FILE_SIZE %d", get_file_size->FileHandle ); - - filesize = fsize ( get_file_size->FileHandle ); - if ( filesize < 0 ) { - get_file_size->Status = PXENV_STATUS ( filesize ); - return PXENV_EXIT_FAILURE; - } - - DBG ( " is %zd", ( ( size_t ) filesize ) ); - - get_file_size->FileSize = filesize; - get_file_size->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/** - * FILE EXEC - * - * @v file_exec Pointer to a struct s_PXENV_FILE_EXEC - * @v s_PXENV_FILE_EXEC::Command Command to execute - * @ret #PXENV_EXIT_SUCCESS Command was executed successfully - * @ret #PXENV_EXIT_FAILURE Command was not executed successfully - * @ret s_PXENV_FILE_EXEC::Status PXE status code - * - */ -static PXENV_EXIT_t pxenv_file_exec ( struct s_PXENV_FILE_EXEC *file_exec ) { - userptr_t command; - size_t command_len; - int rc; - - DBG ( "PXENV_FILE_EXEC" ); - - /* Copy name from external program, and exec it */ - command = real_to_user ( file_exec->Command.segment, - file_exec->Command.offset ); - command_len = strlen_user ( command, 0 ); - { - char command_string[ command_len + 1 ]; - - copy_from_user ( command_string, command, 0, - sizeof ( command_string ) ); - DBG ( " %s", command_string ); - - if ( ( rc = system ( command_string ) ) != 0 ) { - file_exec->Status = PXENV_STATUS ( rc ); - return PXENV_EXIT_FAILURE; - } - } - - file_exec->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/** - * FILE CMDLINE - * - * @v file_cmdline Pointer to a struct s_PXENV_FILE_CMDLINE - * @v s_PXENV_FILE_CMDLINE::Buffer Buffer to contain command line - * @v s_PXENV_FILE_CMDLINE::BufferSize Size of buffer - * @ret #PXENV_EXIT_SUCCESS Command was executed successfully - * @ret #PXENV_EXIT_FAILURE Command was not executed successfully - * @ret s_PXENV_FILE_EXEC::Status PXE status code - * @ret s_PXENV_FILE_EXEC::BufferSize Length of command line (including NUL) - * - */ -static PXENV_EXIT_t -pxenv_file_cmdline ( struct s_PXENV_FILE_CMDLINE *file_cmdline ) { - userptr_t buffer; - size_t max_len; - size_t len; - - DBG ( "PXENV_FILE_CMDLINE to %04x:%04x+%04x \"%s\"\n", - file_cmdline->Buffer.segment, file_cmdline->Buffer.offset, - file_cmdline->BufferSize, pxe_cmdline ); - - buffer = real_to_user ( file_cmdline->Buffer.segment, - file_cmdline->Buffer.offset ); - len = file_cmdline->BufferSize; - max_len = ( pxe_cmdline ? - ( strlen ( pxe_cmdline ) + 1 /* NUL */ ) : 0 ); - if ( len > max_len ) - len = max_len; - copy_to_user ( buffer, 0, pxe_cmdline, len ); - file_cmdline->BufferSize = max_len; - - file_cmdline->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/** - * FILE API CHECK - * - * @v file_exec Pointer to a struct s_PXENV_FILE_API_CHECK - * @v s_PXENV_FILE_API_CHECK::Magic Inbound magic number (0x91d447b2) - * @ret #PXENV_EXIT_SUCCESS Command was executed successfully - * @ret #PXENV_EXIT_FAILURE Command was not executed successfully - * @ret s_PXENV_FILE_API_CHECK::Status PXE status code - * @ret s_PXENV_FILE_API_CHECK::Magic Outbound magic number (0xe9c17b20) - * @ret s_PXENV_FILE_API_CHECK::Provider "iPXE" (0x45585067) - * @ret s_PXENV_FILE_API_CHECK::APIMask API function bitmask - * @ret s_PXENV_FILE_API_CHECK::Flags Reserved - * - */ -static PXENV_EXIT_t -pxenv_file_api_check ( struct s_PXENV_FILE_API_CHECK *file_api_check ) { - struct pxe_api_call *call; - unsigned int mask = 0; - unsigned int offset; - - DBG ( "PXENV_FILE_API_CHECK" ); - - /* Check for magic value */ - if ( file_api_check->Magic != 0x91d447b2 ) { - file_api_check->Status = PXENV_STATUS_BAD_FUNC; - return PXENV_EXIT_FAILURE; - } - - /* Check for required parameter size */ - if ( file_api_check->Size < sizeof ( *file_api_check ) ) { - file_api_check->Status = PXENV_STATUS_OUT_OF_RESOURCES; - return PXENV_EXIT_FAILURE; - } - - /* Determine supported calls */ - for_each_table_entry ( call, PXE_API_CALLS ) { - offset = ( call->opcode - PXENV_FILE_MIN ); - if ( offset <= ( PXENV_FILE_MAX - PXENV_FILE_MIN ) ) - mask |= ( 1 << offset ); - } - - /* Fill in parameters */ - file_api_check->Size = sizeof ( *file_api_check ); - file_api_check->Magic = 0xe9c17b20; - file_api_check->Provider = 0x45585067; /* "iPXE" */ - file_api_check->APIMask = mask; - file_api_check->Flags = 0; /* None defined */ - - file_api_check->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/** PXE file API */ -struct pxe_api_call pxe_file_api[] __pxe_api_call = { - PXE_API_CALL ( PXENV_FILE_OPEN, pxenv_file_open, - struct s_PXENV_FILE_OPEN ), - PXE_API_CALL ( PXENV_FILE_CLOSE, pxenv_file_close, - struct s_PXENV_FILE_CLOSE ), - PXE_API_CALL ( PXENV_FILE_SELECT, pxenv_file_select, - struct s_PXENV_FILE_SELECT ), - PXE_API_CALL ( PXENV_FILE_READ, pxenv_file_read, - struct s_PXENV_FILE_READ ), - PXE_API_CALL ( PXENV_GET_FILE_SIZE, pxenv_get_file_size, - struct s_PXENV_GET_FILE_SIZE ), - PXE_API_CALL ( PXENV_FILE_EXEC, pxenv_file_exec, - struct s_PXENV_FILE_EXEC ), - PXE_API_CALL ( PXENV_FILE_CMDLINE, pxenv_file_cmdline, - struct s_PXENV_FILE_CMDLINE ), - PXE_API_CALL ( PXENV_FILE_API_CHECK, pxenv_file_api_check, - struct s_PXENV_FILE_API_CHECK ), -}; diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_loader.c b/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_loader.c deleted file mode 100644 index e6a2e072a..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_loader.c +++ /dev/null @@ -1,55 +0,0 @@ -/* - * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <ipxe/init.h> -#include "pxe.h" -#include "pxe_call.h" - -/** @file - * - * PXE UNDI loader - * - */ - -/* PXENV_UNDI_LOADER - * - */ -PXENV_EXIT_t undi_loader ( struct s_UNDI_LOADER *undi_loader ) { - - /* Perform one-time initialisation (e.g. heap) */ - initialise(); - - DBG ( "[PXENV_UNDI_LOADER to CS %04x DS %04x]", - undi_loader->UNDI_CS, undi_loader->UNDI_DS ); - - /* Fill in UNDI loader structure */ - undi_loader->PXEptr.segment = rm_cs; - undi_loader->PXEptr.offset = __from_text16 ( &ppxe ); - undi_loader->PXENVptr.segment = rm_cs; - undi_loader->PXENVptr.offset = __from_text16 ( &pxenv ); - - undi_loader->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_preboot.c b/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_preboot.c deleted file mode 100644 index 6e09080bc..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_preboot.c +++ /dev/null @@ -1,387 +0,0 @@ -/** @file - * - * PXE Preboot API - * - */ - -/* PXE API interface for Etherboot. - * - * Copyright (C) 2004 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <stdint.h> -#include <string.h> -#include <stdlib.h> -#include <setjmp.h> -#include <ipxe/uaccess.h> -#include <ipxe/dhcp.h> -#include <ipxe/fakedhcp.h> -#include <ipxe/device.h> -#include <ipxe/netdevice.h> -#include <ipxe/isapnp.h> -#include <ipxe/init.h> -#include <ipxe/if_ether.h> -#include <basemem_packet.h> -#include <biosint.h> -#include "pxe.h" -#include "pxe_call.h" - -/* Avoid dragging in isapnp.o unnecessarily */ -uint16_t isapnp_read_port; - -/** Zero-based versions of PXENV_GET_CACHED_INFO::PacketType */ -enum pxe_cached_info_indices { - CACHED_INFO_DHCPDISCOVER = ( PXENV_PACKET_TYPE_DHCP_DISCOVER - 1 ), - CACHED_INFO_DHCPACK = ( PXENV_PACKET_TYPE_DHCP_ACK - 1 ), - CACHED_INFO_BINL = ( PXENV_PACKET_TYPE_CACHED_REPLY - 1 ), - NUM_CACHED_INFOS -}; - -/** A cached DHCP packet */ -union pxe_cached_info { - struct dhcphdr dhcphdr; - /* This buffer must be *exactly* the size of a BOOTPLAYER_t - * structure, otherwise WinPE will die horribly. It takes the - * size of *our* buffer and feeds it in to us as the size of - * one of *its* buffers. If our buffer is larger than it - * expects, we therefore end up overwriting part of its data - * segment, since it tells us to do so. (D'oh!) - * - * Note that a BOOTPLAYER_t is not necessarily large enough to - * hold a DHCP packet; this is a flaw in the PXE spec. - */ - BOOTPLAYER_t packet; -} __attribute__ (( packed )); - -/** A PXE DHCP packet creator */ -struct pxe_dhcp_packet_creator { - /** Create DHCP packet - * - * @v netdev Network device - * @v data Buffer for DHCP packet - * @v max_len Size of DHCP packet buffer - * @ret rc Return status code - */ - int ( * create ) ( struct net_device *netdev, void *data, - size_t max_len ); -}; - -/** PXE DHCP packet creators */ -static struct pxe_dhcp_packet_creator pxe_dhcp_packet_creators[] = { - [CACHED_INFO_DHCPDISCOVER] = { create_fakedhcpdiscover }, - [CACHED_INFO_DHCPACK] = { create_fakedhcpack }, - [CACHED_INFO_BINL] = { create_fakepxebsack }, -}; - -/** - * Name PXENV_GET_CACHED_INFO packet type - * - * @v packet_type Packet type - * @ret name Name of packet type - */ -static inline __attribute__ (( always_inline )) const char * -pxenv_get_cached_info_name ( int packet_type ) { - switch ( packet_type ) { - case PXENV_PACKET_TYPE_DHCP_DISCOVER: - return "DHCPDISCOVER"; - case PXENV_PACKET_TYPE_DHCP_ACK: - return "DHCPACK"; - case PXENV_PACKET_TYPE_CACHED_REPLY: - return "BINL"; - default: - return "<INVALID>"; - } -} - -/* The case in which the caller doesn't supply a buffer is really - * awkward to support given that we have multiple sources of options, - * and that we don't actually store the DHCP packets. (We may not - * even have performed DHCP; we may have obtained all configuration - * from non-volatile stored options or from the command line.) - * - * Some NBPs rely on the buffers we provide being persistent, so we - * can't just use the temporary packet buffer. 4.5kB of base memory - * always wasted just because some clients are too lazy to provide - * their own buffers... - */ -static union pxe_cached_info __bss16_array ( cached_info, [NUM_CACHED_INFOS] ); -#define cached_info __use_data16 ( cached_info ) - -/** - * UNLOAD BASE CODE STACK - * - * @v None - - * @ret ... - * - */ -static PXENV_EXIT_t -pxenv_unload_stack ( struct s_PXENV_UNLOAD_STACK *unload_stack ) { - DBGC ( &pxe_netdev, "PXENV_UNLOAD_STACK\n" ); - - unload_stack->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_GET_CACHED_INFO - * - * Status: working - */ -static PXENV_EXIT_t -pxenv_get_cached_info ( struct s_PXENV_GET_CACHED_INFO *get_cached_info ) { - struct pxe_dhcp_packet_creator *creator; - union pxe_cached_info *info; - unsigned int idx; - size_t len; - userptr_t buffer; - int rc; - - DBGC ( &pxe_netdev, "PXENV_GET_CACHED_INFO %s to %04x:%04x+%x", - pxenv_get_cached_info_name ( get_cached_info->PacketType ), - get_cached_info->Buffer.segment, - get_cached_info->Buffer.offset, get_cached_info->BufferSize ); - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_GET_CACHED_INFO called with no " - "network device\n" ); - get_cached_info->Status = PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - /* Sanity check */ - idx = ( get_cached_info->PacketType - 1 ); - if ( idx >= NUM_CACHED_INFOS ) { - DBGC ( &pxe_netdev, " bad PacketType %d\n", - get_cached_info->PacketType ); - goto err; - } - info = &cached_info[idx]; - - /* Construct DHCP packet */ - creator = &pxe_dhcp_packet_creators[idx]; - if ( ( rc = creator->create ( pxe_netdev, info, - sizeof ( *info ) ) ) != 0 ) { - DBGC ( &pxe_netdev, " failed to build packet: %s\n", - strerror ( rc ) ); - goto err; - } - - /* Copy packet (if applicable) */ - len = get_cached_info->BufferSize; - if ( len == 0 ) { - /* Point client at our cached buffer. - * - * To add to the fun, Intel decided at some point in - * the evolution of the PXE specification to add the - * BufferLimit field, which we are meant to fill in - * with the length of our packet buffer, so that the - * caller can safely modify the boot server reply - * packet stored therein. However, this field was not - * present in earlier versions of the PXE spec, and - * there is at least one PXE NBP (Altiris) which - * allocates only exactly enough space for this - * earlier, shorter version of the structure. If we - * actually fill in the BufferLimit field, we - * therefore risk trashing random areas of the - * caller's memory. If we *don't* fill it in, then - * the caller is at liberty to assume that whatever - * random value happened to be in that location - * represents the length of the buffer we've just - * passed back to it. - * - * Since older PXE stacks won't fill this field in - * anyway, it's probably safe to assume that no - * callers actually rely on it, so we choose to not - * fill it in. - */ - get_cached_info->Buffer.segment = rm_ds; - get_cached_info->Buffer.offset = __from_data16 ( info ); - get_cached_info->BufferSize = sizeof ( *info ); - DBGC ( &pxe_netdev, " using %04x:%04x+%04x['%x']", - get_cached_info->Buffer.segment, - get_cached_info->Buffer.offset, - get_cached_info->BufferSize, - get_cached_info->BufferLimit ); - } else { - /* Copy packet to client buffer */ - if ( len > sizeof ( *info ) ) - len = sizeof ( *info ); - if ( len < sizeof ( *info ) ) - DBGC ( &pxe_netdev, " buffer may be too short" ); - buffer = real_to_user ( get_cached_info->Buffer.segment, - get_cached_info->Buffer.offset ); - copy_to_user ( buffer, 0, info, len ); - get_cached_info->BufferSize = len; - } - - DBGC ( &pxe_netdev, "\n" ); - get_cached_info->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; - - err: - get_cached_info->Status = PXENV_STATUS_OUT_OF_RESOURCES; - return PXENV_EXIT_FAILURE; -} - -/* PXENV_RESTART_TFTP - * - * Status: working - */ -static PXENV_EXIT_t -pxenv_restart_tftp ( struct s_PXENV_TFTP_READ_FILE *restart_tftp ) { - PXENV_EXIT_t tftp_exit; - - DBGC ( &pxe_netdev, "PXENV_RESTART_TFTP\n" ); - - /* Words cannot describe the complete mismatch between the PXE - * specification and any possible version of reality... - */ - restart_tftp->Buffer = PXE_LOAD_PHYS; /* Fixed by spec, apparently */ - restart_tftp->BufferSize = ( 0xa0000 - PXE_LOAD_PHYS ); /* Near enough */ - tftp_exit = pxenv_tftp_read_file ( restart_tftp ); - if ( tftp_exit != PXENV_EXIT_SUCCESS ) - return tftp_exit; - - /* Restart NBP */ - rmlongjmp ( pxe_restart_nbp, PXENV_RESTART_TFTP ); -} - -/* PXENV_START_UNDI - * - * Status: working - */ -static PXENV_EXIT_t pxenv_start_undi ( struct s_PXENV_START_UNDI *start_undi ) { - unsigned int bus_type; - unsigned int location; - struct net_device *netdev; - - DBGC ( &pxe_netdev, "PXENV_START_UNDI %04x:%04x:%04x\n", - start_undi->AX, start_undi->BX, start_undi->DX ); - - /* Determine bus type and location. Use a heuristic to decide - * whether we are PCI or ISAPnP - */ - if ( ( start_undi->DX >= ISAPNP_READ_PORT_MIN ) && - ( start_undi->DX <= ISAPNP_READ_PORT_MAX ) && - ( start_undi->BX >= ISAPNP_CSN_MIN ) && - ( start_undi->BX <= ISAPNP_CSN_MAX ) ) { - bus_type = BUS_TYPE_ISAPNP; - location = start_undi->BX; - /* Record ISAPnP read port for use by isapnp.c */ - isapnp_read_port = start_undi->DX; - } else { - bus_type = BUS_TYPE_PCI; - location = start_undi->AX; - } - - /* Probe for devices, etc. */ - startup(); - - /* Look for a matching net device */ - netdev = find_netdev_by_location ( bus_type, location ); - if ( ! netdev ) { - DBGC ( &pxe_netdev, "PXENV_START_UNDI could not find matching " - "net device\n" ); - start_undi->Status = PXENV_STATUS_UNDI_CANNOT_INITIALIZE_NIC; - return PXENV_EXIT_FAILURE; - } - DBGC ( &pxe_netdev, "PXENV_START_UNDI found net device %s\n", - netdev->name ); - - /* Activate PXE */ - pxe_activate ( netdev ); - - start_undi->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_STOP_UNDI - * - * Status: working - */ -static PXENV_EXIT_t pxenv_stop_undi ( struct s_PXENV_STOP_UNDI *stop_undi ) { - DBGC ( &pxe_netdev, "PXENV_STOP_UNDI\n" ); - - /* Deactivate PXE */ - pxe_deactivate(); - - /* Prepare for unload */ - shutdown_boot(); - - /* Check to see if we still have any hooked interrupts */ - if ( hooked_bios_interrupts != 0 ) { - DBGC ( &pxe_netdev, "PXENV_STOP_UNDI failed: %d interrupts " - "still hooked\n", hooked_bios_interrupts ); - stop_undi->Status = PXENV_STATUS_KEEP_UNDI; - return PXENV_EXIT_FAILURE; - } - - stop_undi->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_START_BASE - * - * Status: won't implement (requires major structural changes) - */ -static PXENV_EXIT_t pxenv_start_base ( struct s_PXENV_START_BASE *start_base ) { - DBGC ( &pxe_netdev, "PXENV_START_BASE\n" ); - - start_base->Status = PXENV_STATUS_UNSUPPORTED; - return PXENV_EXIT_FAILURE; -} - -/* PXENV_STOP_BASE - * - * Status: working - */ -static PXENV_EXIT_t pxenv_stop_base ( struct s_PXENV_STOP_BASE *stop_base ) { - DBGC ( &pxe_netdev, "PXENV_STOP_BASE\n" ); - - /* The only time we will be called is when the NBP is trying - * to shut down the PXE stack. There's nothing we need to do - * in this call. - */ - - stop_base->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/** PXE preboot API */ -struct pxe_api_call pxe_preboot_api[] __pxe_api_call = { - PXE_API_CALL ( PXENV_UNLOAD_STACK, pxenv_unload_stack, - struct s_PXENV_UNLOAD_STACK ), - PXE_API_CALL ( PXENV_GET_CACHED_INFO, pxenv_get_cached_info, - struct s_PXENV_GET_CACHED_INFO ), - PXE_API_CALL ( PXENV_RESTART_TFTP, pxenv_restart_tftp, - struct s_PXENV_TFTP_READ_FILE ), - PXE_API_CALL ( PXENV_START_UNDI, pxenv_start_undi, - struct s_PXENV_START_UNDI ), - PXE_API_CALL ( PXENV_STOP_UNDI, pxenv_stop_undi, - struct s_PXENV_STOP_UNDI ), - PXE_API_CALL ( PXENV_START_BASE, pxenv_start_base, - struct s_PXENV_START_BASE ), - PXE_API_CALL ( PXENV_STOP_BASE, pxenv_stop_base, - struct s_PXENV_STOP_BASE ), -}; diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_tftp.c b/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_tftp.c deleted file mode 100644 index 068d8a7b2..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_tftp.c +++ /dev/null @@ -1,597 +0,0 @@ -/** @file - * - * PXE TFTP API - * - */ - -/* - * Copyright (C) 2004 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <stdlib.h> -#include <stdio.h> -#include <errno.h> -#include <byteswap.h> -#include <ipxe/uaccess.h> -#include <ipxe/in.h> -#include <ipxe/tftp.h> -#include <ipxe/iobuf.h> -#include <ipxe/xfer.h> -#include <ipxe/open.h> -#include <ipxe/process.h> -#include <ipxe/uri.h> -#include <realmode.h> -#include <pxe.h> - -/** A PXE TFTP connection */ -struct pxe_tftp_connection { - /** Data transfer interface */ - struct interface xfer; - /** Data buffer */ - userptr_t buffer; - /** Size of data buffer */ - size_t size; - /** Starting offset of data buffer */ - size_t start; - /** File position */ - size_t offset; - /** Maximum file position */ - size_t max_offset; - /** Block size */ - size_t blksize; - /** Block index */ - unsigned int blkidx; - /** Overall return status code */ - int rc; -}; - -/** - * Close PXE TFTP connection - * - * @v pxe_tftp PXE TFTP connection - * @v rc Final status code - */ -static void pxe_tftp_close ( struct pxe_tftp_connection *pxe_tftp, int rc ) { - intf_shutdown ( &pxe_tftp->xfer, rc ); - pxe_tftp->rc = rc; -} - -/** - * Check flow control window - * - * @v pxe_tftp PXE TFTP connection - * @ret len Length of window - */ -static size_t pxe_tftp_xfer_window ( struct pxe_tftp_connection *pxe_tftp ) { - - return pxe_tftp->blksize; -} - -/** - * Receive new data - * - * @v pxe_tftp PXE TFTP connection - * @v iobuf I/O buffer - * @v meta Transfer metadata - * @ret rc Return status code - */ -static int pxe_tftp_xfer_deliver ( struct pxe_tftp_connection *pxe_tftp, - struct io_buffer *iobuf, - struct xfer_metadata *meta ) { - size_t len = iob_len ( iobuf ); - int rc = 0; - - /* Calculate new buffer position */ - if ( meta->flags & XFER_FL_ABS_OFFSET ) - pxe_tftp->offset = 0; - pxe_tftp->offset += meta->offset; - - /* Copy data block to buffer */ - if ( len == 0 ) { - /* No data (pure seek); treat as success */ - } else if ( pxe_tftp->offset < pxe_tftp->start ) { - DBG ( " buffer underrun at %zx (min %zx)", - pxe_tftp->offset, pxe_tftp->start ); - rc = -ENOBUFS; - } else if ( ( pxe_tftp->offset + len ) > - ( pxe_tftp->start + pxe_tftp->size ) ) { - DBG ( " buffer overrun at %zx (max %zx)", - ( pxe_tftp->offset + len ), - ( pxe_tftp->start + pxe_tftp->size ) ); - rc = -ENOBUFS; - } else { - copy_to_user ( pxe_tftp->buffer, - ( pxe_tftp->offset - pxe_tftp->start ), - iobuf->data, len ); - } - - /* Calculate new buffer position */ - pxe_tftp->offset += len; - - /* Record maximum offset as the file size */ - if ( pxe_tftp->max_offset < pxe_tftp->offset ) - pxe_tftp->max_offset = pxe_tftp->offset; - - /* Terminate transfer on error */ - if ( rc != 0 ) - pxe_tftp_close ( pxe_tftp, rc ); - - free_iob ( iobuf ); - return rc; -} - -/** PXE TFTP connection interface operations */ -static struct interface_operation pxe_tftp_xfer_ops[] = { - INTF_OP ( xfer_deliver, struct pxe_tftp_connection *, - pxe_tftp_xfer_deliver ), - INTF_OP ( xfer_window, struct pxe_tftp_connection *, - pxe_tftp_xfer_window ), - INTF_OP ( intf_close, struct pxe_tftp_connection *, pxe_tftp_close ), -}; - -/** PXE TFTP connection interface descriptor */ -static struct interface_descriptor pxe_tftp_xfer_desc = - INTF_DESC ( struct pxe_tftp_connection, xfer, pxe_tftp_xfer_ops ); - -/** The PXE TFTP connection */ -static struct pxe_tftp_connection pxe_tftp = { - .xfer = INTF_INIT ( pxe_tftp_xfer_desc ), -}; - -/** - * Maximum length of a PXE TFTP URI - * - * The PXE TFTP API provides 128 characters for the filename; the - * extra 128 bytes allow for the remainder of the URI. - */ -#define PXE_TFTP_URI_LEN 256 - -/** - * Open PXE TFTP connection - * - * @v ipaddress IP address - * @v port TFTP server port - * @v filename File name - * @v blksize Requested block size - * @ret rc Return status code - */ -static int pxe_tftp_open ( IP4_t ipaddress, UDP_PORT_t port, - UINT8_t *filename, UINT16_t blksize ) { - struct in_addr address; - struct uri *uri; - int rc; - - /* Reset PXE TFTP connection structure */ - memset ( &pxe_tftp, 0, sizeof ( pxe_tftp ) ); - intf_init ( &pxe_tftp.xfer, &pxe_tftp_xfer_desc, NULL ); - if ( blksize < TFTP_DEFAULT_BLKSIZE ) - blksize = TFTP_DEFAULT_BLKSIZE; - pxe_tftp.blksize = blksize; - pxe_tftp.rc = -EINPROGRESS; - - /* Construct URI */ - address.s_addr = ipaddress; - DBG ( " %s", inet_ntoa ( address ) ); - if ( port ) - DBG ( ":%d", ntohs ( port ) ); - DBG ( ":%s", filename ); - uri = tftp_uri ( address, ntohs ( port ), ( ( char * ) filename ) ); - if ( ! uri ) { - DBG ( " could not create URI\n" ); - return -ENOMEM; - } - - /* Open PXE TFTP connection */ - if ( ( rc = xfer_open_uri ( &pxe_tftp.xfer, uri ) ) != 0 ) { - DBG ( " could not open (%s)\n", strerror ( rc ) ); - return rc; - } - - return 0; -} - -/** - * TFTP OPEN - * - * @v tftp_open Pointer to a struct s_PXENV_TFTP_OPEN - * @v s_PXENV_TFTP_OPEN::ServerIPAddress TFTP server IP address - * @v s_PXENV_TFTP_OPEN::GatewayIPAddress Relay agent IP address, or 0.0.0.0 - * @v s_PXENV_TFTP_OPEN::FileName Name of file to open - * @v s_PXENV_TFTP_OPEN::TFTPPort TFTP server UDP port - * @v s_PXENV_TFTP_OPEN::PacketSize TFTP blksize option to request - * @ret #PXENV_EXIT_SUCCESS File was opened - * @ret #PXENV_EXIT_FAILURE File was not opened - * @ret s_PXENV_TFTP_OPEN::Status PXE status code - * @ret s_PXENV_TFTP_OPEN::PacketSize Negotiated blksize - * @err #PXENV_STATUS_TFTP_INVALID_PACKET_SIZE Requested blksize too small - * - * Opens a TFTP connection for downloading a file a block at a time - * using pxenv_tftp_read(). - * - * If s_PXENV_TFTP_OPEN::GatewayIPAddress is 0.0.0.0, normal IP - * routing will take place. See the relevant - * @ref pxe_routing "implementation note" for more details. - * - * On x86, you must set the s_PXE::StatusCallout field to a nonzero - * value before calling this function in protected mode. You cannot - * call this function with a 32-bit stack segment. (See the relevant - * @ref pxe_x86_pmode16 "implementation note" for more details.) - * - * @note According to the PXE specification version 2.1, this call - * "opens a file for reading/writing", though how writing is to be - * achieved without the existence of an API call %pxenv_tftp_write() - * is not made clear. - * - * @note Despite the existence of the numerous statements within the - * PXE specification of the form "...if a TFTP/MTFTP or UDP connection - * is active...", you cannot use pxenv_tftp_open() and - * pxenv_tftp_read() to read a file via MTFTP; only via plain old - * TFTP. If you want to use MTFTP, use pxenv_tftp_read_file() - * instead. Astute readers will note that, since - * pxenv_tftp_read_file() is an atomic operation from the point of - * view of the PXE API, it is conceptually impossible to issue any - * other PXE API call "if an MTFTP connection is active". - */ -static PXENV_EXIT_t pxenv_tftp_open ( struct s_PXENV_TFTP_OPEN *tftp_open ) { - int rc; - - DBG ( "PXENV_TFTP_OPEN" ); - - /* Guard against callers that fail to close before re-opening */ - pxe_tftp_close ( &pxe_tftp, 0 ); - - /* Open connection */ - if ( ( rc = pxe_tftp_open ( tftp_open->ServerIPAddress, - tftp_open->TFTPPort, - tftp_open->FileName, - tftp_open->PacketSize ) ) != 0 ) { - tftp_open->Status = PXENV_STATUS ( rc ); - return PXENV_EXIT_FAILURE; - } - - /* Wait for OACK to arrive so that we have the block size */ - while ( ( ( rc = pxe_tftp.rc ) == -EINPROGRESS ) && - ( pxe_tftp.max_offset == 0 ) ) { - step(); - } - pxe_tftp.blksize = xfer_window ( &pxe_tftp.xfer ); - tftp_open->PacketSize = pxe_tftp.blksize; - DBG ( " blksize=%d", tftp_open->PacketSize ); - - /* EINPROGRESS is normal; we don't wait for the whole transfer */ - if ( rc == -EINPROGRESS ) - rc = 0; - - tftp_open->Status = PXENV_STATUS ( rc ); - return ( rc ? PXENV_EXIT_FAILURE : PXENV_EXIT_SUCCESS ); -} - -/** - * TFTP CLOSE - * - * @v tftp_close Pointer to a struct s_PXENV_TFTP_CLOSE - * @ret #PXENV_EXIT_SUCCESS File was closed successfully - * @ret #PXENV_EXIT_FAILURE File was not closed - * @ret s_PXENV_TFTP_CLOSE::Status PXE status code - * @err None - - * - * Close a connection previously opened with pxenv_tftp_open(). You - * must have previously opened a connection with pxenv_tftp_open(). - * - * On x86, you must set the s_PXE::StatusCallout field to a nonzero - * value before calling this function in protected mode. You cannot - * call this function with a 32-bit stack segment. (See the relevant - * @ref pxe_x86_pmode16 "implementation note" for more details.) - */ -static PXENV_EXIT_t pxenv_tftp_close ( struct s_PXENV_TFTP_CLOSE *tftp_close ) { - DBG ( "PXENV_TFTP_CLOSE" ); - - pxe_tftp_close ( &pxe_tftp, 0 ); - tftp_close->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/** - * TFTP READ - * - * @v tftp_read Pointer to a struct s_PXENV_TFTP_READ - * @v s_PXENV_TFTP_READ::Buffer Address of data buffer - * @ret #PXENV_EXIT_SUCCESS Data was read successfully - * @ret #PXENV_EXIT_FAILURE Data was not read - * @ret s_PXENV_TFTP_READ::Status PXE status code - * @ret s_PXENV_TFTP_READ::PacketNumber TFTP packet number - * @ret s_PXENV_TFTP_READ::BufferSize Length of data written into buffer - * - * Reads a single packet from a connection previously opened with - * pxenv_tftp_open() into the data buffer pointed to by - * s_PXENV_TFTP_READ::Buffer. You must have previously opened a - * connection with pxenv_tftp_open(). The data written into - * s_PXENV_TFTP_READ::Buffer is just the file data; the various - * network headers have already been removed. - * - * The buffer must be large enough to contain a packet of the size - * negotiated via the s_PXENV_TFTP_OPEN::PacketSize field in the - * pxenv_tftp_open() call. It is worth noting that the PXE - * specification does @b not require the caller to fill in - * s_PXENV_TFTP_READ::BufferSize before calling pxenv_tftp_read(), so - * the PXE stack is free to ignore whatever value the caller might - * place there and just assume that the buffer is large enough. That - * said, it may be worth the caller always filling in - * s_PXENV_TFTP_READ::BufferSize to guard against PXE stacks that - * mistake it for an input parameter. - * - * The length of the TFTP data packet will be returned via - * s_PXENV_TFTP_READ::BufferSize. If this length is less than the - * blksize negotiated via s_PXENV_TFTP_OPEN::PacketSize in the call to - * pxenv_tftp_open(), this indicates that the block is the last block - * in the file. Note that zero is a valid length for - * s_PXENV_TFTP_READ::BufferSize, and will occur when the length of - * the file is a multiple of the blksize. - * - * The PXE specification doesn't actually state that calls to - * pxenv_tftp_read() will return the data packets in strict sequential - * order, though most PXE stacks will probably do so. The sequence - * number of the packet will be returned in - * s_PXENV_TFTP_READ::PacketNumber. The first packet in the file has - * a sequence number of one, not zero. - * - * To guard against flawed PXE stacks, the caller should probably set - * s_PXENV_TFTP_READ::PacketNumber to one less than the expected - * returned value (i.e. set it to zero for the first call to - * pxenv_tftp_read() and then re-use the returned s_PXENV_TFTP_READ - * parameter block for subsequent calls without modifying - * s_PXENV_TFTP_READ::PacketNumber between calls). The caller should - * also guard against potential problems caused by flawed - * implementations returning the occasional duplicate packet, by - * checking that the value returned in s_PXENV_TFTP_READ::PacketNumber - * is as expected (i.e. one greater than that returned from the - * previous call to pxenv_tftp_read()). - * - * On x86, you must set the s_PXE::StatusCallout field to a nonzero - * value before calling this function in protected mode. You cannot - * call this function with a 32-bit stack segment. (See the relevant - * @ref pxe_x86_pmode16 "implementation note" for more details.) - */ -static PXENV_EXIT_t pxenv_tftp_read ( struct s_PXENV_TFTP_READ *tftp_read ) { - int rc; - - DBG ( "PXENV_TFTP_READ to %04x:%04x", - tftp_read->Buffer.segment, tftp_read->Buffer.offset ); - - /* Read single block into buffer */ - pxe_tftp.buffer = real_to_user ( tftp_read->Buffer.segment, - tftp_read->Buffer.offset ); - pxe_tftp.size = pxe_tftp.blksize; - pxe_tftp.start = pxe_tftp.offset; - while ( ( ( rc = pxe_tftp.rc ) == -EINPROGRESS ) && - ( pxe_tftp.offset == pxe_tftp.start ) ) - step(); - pxe_tftp.buffer = UNULL; - tftp_read->BufferSize = ( pxe_tftp.offset - pxe_tftp.start ); - tftp_read->PacketNumber = ++pxe_tftp.blkidx; - - /* EINPROGRESS is normal if we haven't reached EOF yet */ - if ( rc == -EINPROGRESS ) - rc = 0; - - tftp_read->Status = PXENV_STATUS ( rc ); - return ( rc ? PXENV_EXIT_FAILURE : PXENV_EXIT_SUCCESS ); -} - -/** - * TFTP/MTFTP read file - * - * @v tftp_read_file Pointer to a struct s_PXENV_TFTP_READ_FILE - * @v s_PXENV_TFTP_READ_FILE::FileName File name - * @v s_PXENV_TFTP_READ_FILE::BufferSize Size of the receive buffer - * @v s_PXENV_TFTP_READ_FILE::Buffer Address of the receive buffer - * @v s_PXENV_TFTP_READ_FILE::ServerIPAddress TFTP server IP address - * @v s_PXENV_TFTP_READ_FILE::GatewayIPAddress Relay agent IP address - * @v s_PXENV_TFTP_READ_FILE::McastIPAddress File's multicast IP address - * @v s_PXENV_TFTP_READ_FILE::TFTPClntPort Client multicast UDP port - * @v s_PXENV_TFTP_READ_FILE::TFTPSrvPort Server multicast UDP port - * @v s_PXENV_TFTP_READ_FILE::TFTPOpenTimeOut Time to wait for first packet - * @v s_PXENV_TFTP_READ_FILE::TFTPReopenDelay MTFTP inactivity timeout - * @ret #PXENV_EXIT_SUCCESS File downloaded successfully - * @ret #PXENV_EXIT_FAILURE File not downloaded - * @ret s_PXENV_TFTP_READ_FILE::Status PXE status code - * @ret s_PXENV_TFTP_READ_FILE::BufferSize Length of downloaded file - * - * Downloads an entire file via either TFTP or MTFTP into the buffer - * pointed to by s_PXENV_TFTP_READ_FILE::Buffer. - * - * The PXE specification does not make it clear how the caller - * requests that MTFTP be used rather than TFTP (or vice versa). One - * reasonable guess is that setting - * s_PXENV_TFTP_READ_FILE::McastIPAddress to 0.0.0.0 would cause TFTP - * to be used instead of MTFTP, though it is conceivable that some PXE - * stacks would interpret that as "use the DHCP-provided multicast IP - * address" instead. Some PXE stacks will not implement MTFTP at all, - * and will always use TFTP. - * - * It is not specified whether or not - * s_PXENV_TFTP_READ_FILE::TFTPSrvPort will be used as the TFTP server - * port for TFTP (rather than MTFTP) downloads. Callers should assume - * that the only way to access a TFTP server on a non-standard port is - * to use pxenv_tftp_open() and pxenv_tftp_read(). - * - * If s_PXENV_TFTP_READ_FILE::GatewayIPAddress is 0.0.0.0, normal IP - * routing will take place. See the relevant - * @ref pxe_routing "implementation note" for more details. - * - * It is interesting to note that s_PXENV_TFTP_READ_FILE::Buffer is an - * #ADDR32_t type, i.e. nominally a flat physical address. Some PXE - * NBPs (e.g. NTLDR) are known to call pxenv_tftp_read_file() in real - * mode with s_PXENV_TFTP_READ_FILE::Buffer set to an address above - * 1MB. This means that PXE stacks must be prepared to write to areas - * outside base memory. Exactly how this is to be achieved is not - * specified, though using INT 15,87 is as close to a standard method - * as any, and should probably be used. Switching to protected-mode - * in order to access high memory will fail if pxenv_tftp_read_file() - * is called in V86 mode; it is reasonably to expect that a V86 - * monitor would intercept the relatively well-defined INT 15,87 if it - * wants the PXE stack to be able to write to high memory. - * - * Things get even more interesting if pxenv_tftp_read_file() is - * called in protected mode, because there is then absolutely no way - * for the PXE stack to write to an absolute physical address. You - * can't even get around the problem by creating a special "access - * everything" segment in the s_PXE data structure, because the - * #SEGDESC_t descriptors are limited to 64kB in size. - * - * Previous versions of the PXE specification (e.g. WfM 1.1a) provide - * a separate API call, %pxenv_tftp_read_file_pmode(), specifically to - * work around this problem. The s_PXENV_TFTP_READ_FILE_PMODE - * parameter block splits s_PXENV_TFTP_READ_FILE::Buffer into - * s_PXENV_TFTP_READ_FILE_PMODE::BufferSelector and - * s_PXENV_TFTP_READ_FILE_PMODE::BufferOffset, i.e. it provides a - * protected-mode segment:offset address for the data buffer. This - * API call is no longer present in version 2.1 of the PXE - * specification. - * - * Etherboot makes the assumption that s_PXENV_TFTP_READ_FILE::Buffer - * is an offset relative to the caller's data segment, when - * pxenv_tftp_read_file() is called in protected mode. - * - * On x86, you must set the s_PXE::StatusCallout field to a nonzero - * value before calling this function in protected mode. You cannot - * call this function with a 32-bit stack segment. (See the relevant - * @ref pxe_x86_pmode16 "implementation note" for more details.) - */ -PXENV_EXIT_t pxenv_tftp_read_file ( struct s_PXENV_TFTP_READ_FILE - *tftp_read_file ) { - int rc; - - DBG ( "PXENV_TFTP_READ_FILE to %08x+%x", tftp_read_file->Buffer, - tftp_read_file->BufferSize ); - - /* Open TFTP file */ - if ( ( rc = pxe_tftp_open ( tftp_read_file->ServerIPAddress, 0, - tftp_read_file->FileName, 0 ) ) != 0 ) { - tftp_read_file->Status = PXENV_STATUS ( rc ); - return PXENV_EXIT_FAILURE; - } - - /* Read entire file */ - pxe_tftp.buffer = phys_to_user ( tftp_read_file->Buffer ); - pxe_tftp.size = tftp_read_file->BufferSize; - while ( ( rc = pxe_tftp.rc ) == -EINPROGRESS ) - step(); - pxe_tftp.buffer = UNULL; - tftp_read_file->BufferSize = pxe_tftp.max_offset; - - /* Close TFTP file */ - pxe_tftp_close ( &pxe_tftp, rc ); - - tftp_read_file->Status = PXENV_STATUS ( rc ); - return ( rc ? PXENV_EXIT_FAILURE : PXENV_EXIT_SUCCESS ); -} - -/** - * TFTP GET FILE SIZE - * - * @v tftp_get_fsize Pointer to a struct s_PXENV_TFTP_GET_FSIZE - * @v s_PXENV_TFTP_GET_FSIZE::ServerIPAddress TFTP server IP address - * @v s_PXENV_TFTP_GET_FSIZE::GatewayIPAddress Relay agent IP address - * @v s_PXENV_TFTP_GET_FSIZE::FileName File name - * @ret #PXENV_EXIT_SUCCESS File size was determined successfully - * @ret #PXENV_EXIT_FAILURE File size was not determined - * @ret s_PXENV_TFTP_GET_FSIZE::Status PXE status code - * @ret s_PXENV_TFTP_GET_FSIZE::FileSize File size - * - * Determine the size of a file on a TFTP server. This uses the - * "tsize" TFTP option, and so will not work with a TFTP server that - * does not support TFTP options, or that does not support the "tsize" - * option. - * - * The PXE specification states that this API call will @b not open a - * TFTP connection for subsequent use with pxenv_tftp_read(). (This - * is somewhat daft, since the only way to obtain the file size via - * the "tsize" option involves issuing a TFTP open request, but that's - * life.) - * - * You cannot call pxenv_tftp_get_fsize() while a TFTP or UDP - * connection is open. - * - * If s_PXENV_TFTP_GET_FSIZE::GatewayIPAddress is 0.0.0.0, normal IP - * routing will take place. See the relevant - * @ref pxe_routing "implementation note" for more details. - * - * On x86, you must set the s_PXE::StatusCallout field to a nonzero - * value before calling this function in protected mode. You cannot - * call this function with a 32-bit stack segment. (See the relevant - * @ref pxe_x86_pmode16 "implementation note" for more details.) - * - * @note There is no way to specify the TFTP server port with this API - * call. Though you can open a file using a non-standard TFTP server - * port (via s_PXENV_TFTP_OPEN::TFTPPort or, potentially, - * s_PXENV_TFTP_READ_FILE::TFTPSrvPort), you can only get the size of - * a file from a TFTP server listening on the standard TFTP port. - * "Consistency" is not a word in Intel's vocabulary. - */ -static PXENV_EXIT_t pxenv_tftp_get_fsize ( struct s_PXENV_TFTP_GET_FSIZE - *tftp_get_fsize ) { - int rc; - - DBG ( "PXENV_TFTP_GET_FSIZE" ); - - /* Open TFTP file */ - if ( ( rc = pxe_tftp_open ( tftp_get_fsize->ServerIPAddress, 0, - tftp_get_fsize->FileName, 0 ) ) != 0 ) { - tftp_get_fsize->Status = PXENV_STATUS ( rc ); - return PXENV_EXIT_FAILURE; - } - - /* Wait for initial seek to arrive, and record size */ - while ( ( ( rc = pxe_tftp.rc ) == -EINPROGRESS ) && - ( pxe_tftp.max_offset == 0 ) ) { - step(); - } - tftp_get_fsize->FileSize = pxe_tftp.max_offset; - DBG ( " fsize=%d", tftp_get_fsize->FileSize ); - - /* EINPROGRESS is normal; we don't wait for the whole transfer */ - if ( rc == -EINPROGRESS ) - rc = 0; - - /* Close TFTP file */ - pxe_tftp_close ( &pxe_tftp, rc ); - - tftp_get_fsize->Status = PXENV_STATUS ( rc ); - return ( rc ? PXENV_EXIT_FAILURE : PXENV_EXIT_SUCCESS ); -} - -/** PXE TFTP API */ -struct pxe_api_call pxe_tftp_api[] __pxe_api_call = { - PXE_API_CALL ( PXENV_TFTP_OPEN, pxenv_tftp_open, - struct s_PXENV_TFTP_OPEN ), - PXE_API_CALL ( PXENV_TFTP_CLOSE, pxenv_tftp_close, - struct s_PXENV_TFTP_CLOSE ), - PXE_API_CALL ( PXENV_TFTP_READ, pxenv_tftp_read, - struct s_PXENV_TFTP_READ ), - PXE_API_CALL ( PXENV_TFTP_READ_FILE, pxenv_tftp_read_file, - struct s_PXENV_TFTP_READ_FILE ), - PXE_API_CALL ( PXENV_TFTP_GET_FSIZE, pxenv_tftp_get_fsize, - struct s_PXENV_TFTP_GET_FSIZE ), -}; diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_udp.c b/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_udp.c deleted file mode 100644 index 071cb59db..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_udp.c +++ /dev/null @@ -1,474 +0,0 @@ -/** @file - * - * PXE UDP API - * - */ - -#include <string.h> -#include <byteswap.h> -#include <ipxe/iobuf.h> -#include <ipxe/xfer.h> -#include <ipxe/udp.h> -#include <ipxe/uaccess.h> -#include <ipxe/process.h> -#include <realmode.h> -#include <pxe.h> - -/* - * Copyright (C) 2004 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** A PXE UDP pseudo-header */ -struct pxe_udp_pseudo_header { - /** Source IP address */ - IP4_t src_ip; - /** Source port */ - UDP_PORT_t s_port; - /** Destination IP address */ - IP4_t dest_ip; - /** Destination port */ - UDP_PORT_t d_port; -} __attribute__ (( packed )); - -/** A PXE UDP connection */ -struct pxe_udp_connection { - /** Data transfer interface to UDP stack */ - struct interface xfer; - /** Local address */ - struct sockaddr_in local; - /** List of received packets */ - struct list_head list; -}; - -/** - * Receive PXE UDP data - * - * @v pxe_udp PXE UDP connection - * @v iobuf I/O buffer - * @v meta Data transfer metadata - * @ret rc Return status code - * - * Receives a packet as part of the current pxenv_udp_read() - * operation. - */ -static int pxe_udp_deliver ( struct pxe_udp_connection *pxe_udp, - struct io_buffer *iobuf, - struct xfer_metadata *meta ) { - struct pxe_udp_pseudo_header *pshdr; - struct sockaddr_in *sin_src; - struct sockaddr_in *sin_dest; - int rc; - - /* Extract metadata */ - assert ( meta ); - sin_src = ( struct sockaddr_in * ) meta->src; - assert ( sin_src ); - assert ( sin_src->sin_family == AF_INET ); - sin_dest = ( struct sockaddr_in * ) meta->dest; - assert ( sin_dest ); - assert ( sin_dest->sin_family == AF_INET ); - - /* Construct pseudo-header */ - if ( ( rc = iob_ensure_headroom ( iobuf, sizeof ( *pshdr ) ) ) != 0 ) { - DBG ( "PXE could not prepend pseudo-header\n" ); - rc = -ENOMEM; - goto drop; - } - pshdr = iob_push ( iobuf, sizeof ( *pshdr ) ); - pshdr->src_ip = sin_src->sin_addr.s_addr; - pshdr->s_port = sin_src->sin_port; - pshdr->dest_ip = sin_dest->sin_addr.s_addr; - pshdr->d_port = sin_dest->sin_port; - - /* Add to queue */ - list_add_tail ( &iobuf->list, &pxe_udp->list ); - - return 0; - - drop: - free_iob ( iobuf ); - return rc; -} - -/** PXE UDP data transfer interface operations */ -static struct interface_operation pxe_udp_xfer_operations[] = { - INTF_OP ( xfer_deliver, struct pxe_udp_connection *, pxe_udp_deliver ), -}; - -/** PXE UDP data transfer interface descriptor */ -static struct interface_descriptor pxe_udp_xfer_desc = - INTF_DESC ( struct pxe_udp_connection, xfer, pxe_udp_xfer_operations ); - -/** The PXE UDP connection */ -static struct pxe_udp_connection pxe_udp = { - .xfer = INTF_INIT ( pxe_udp_xfer_desc ), - .local = { - .sin_family = AF_INET, - }, - .list = LIST_HEAD_INIT ( pxe_udp.list ), -}; - -/** - * UDP OPEN - * - * @v pxenv_udp_open Pointer to a struct s_PXENV_UDP_OPEN - * @v s_PXENV_UDP_OPEN::src_ip IP address of this station, or 0.0.0.0 - * @ret #PXENV_EXIT_SUCCESS Always - * @ret s_PXENV_UDP_OPEN::Status PXE status code - * @err #PXENV_STATUS_UDP_OPEN UDP connection already open - * @err #PXENV_STATUS_OUT_OF_RESOURCES Could not open connection - * - * Prepares the PXE stack for communication using pxenv_udp_write() - * and pxenv_udp_read(). - * - * The IP address supplied in s_PXENV_UDP_OPEN::src_ip will be - * recorded and used as the local station's IP address for all further - * communication, including communication by means other than - * pxenv_udp_write() and pxenv_udp_read(). (If - * s_PXENV_UDP_OPEN::src_ip is 0.0.0.0, the local station's IP address - * will remain unchanged.) - * - * You can only have one open UDP connection at a time. This is not a - * meaningful restriction, since pxenv_udp_write() and - * pxenv_udp_read() allow you to specify arbitrary local and remote - * ports and an arbitrary remote address for each packet. According - * to the PXE specifiation, you cannot have a UDP connection open at - * the same time as a TFTP connection; this restriction does not apply - * to Etherboot. - * - * On x86, you must set the s_PXE::StatusCallout field to a nonzero - * value before calling this function in protected mode. You cannot - * call this function with a 32-bit stack segment. (See the relevant - * @ref pxe_x86_pmode16 "implementation note" for more details.) - * - * @note The PXE specification does not make it clear whether the IP - * address supplied in s_PXENV_UDP_OPEN::src_ip should be used only - * for this UDP connection, or retained for all future communication. - * The latter seems more consistent with typical PXE stack behaviour. - * - * @note Etherboot currently ignores the s_PXENV_UDP_OPEN::src_ip - * parameter. - * - */ -static PXENV_EXIT_t pxenv_udp_open ( struct s_PXENV_UDP_OPEN *pxenv_udp_open ) { - int rc; - - DBG ( "PXENV_UDP_OPEN" ); - - /* Record source IP address */ - pxe_udp.local.sin_addr.s_addr = pxenv_udp_open->src_ip; - DBG ( " %s\n", inet_ntoa ( pxe_udp.local.sin_addr ) ); - - /* Open promiscuous UDP connection */ - intf_restart ( &pxe_udp.xfer, 0 ); - if ( ( rc = udp_open_promisc ( &pxe_udp.xfer ) ) != 0 ) { - DBG ( "PXENV_UDP_OPEN could not open promiscuous socket: %s\n", - strerror ( rc ) ); - pxenv_udp_open->Status = PXENV_STATUS ( rc ); - return PXENV_EXIT_FAILURE; - } - - pxenv_udp_open->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/** - * UDP CLOSE - * - * @v pxenv_udp_close Pointer to a struct s_PXENV_UDP_CLOSE - * @ret #PXENV_EXIT_SUCCESS Always - * @ret s_PXENV_UDP_CLOSE::Status PXE status code - * @err None - - * - * Closes a UDP connection opened with pxenv_udp_open(). - * - * You can only have one open UDP connection at a time. You cannot - * have a UDP connection open at the same time as a TFTP connection. - * You cannot use pxenv_udp_close() to close a TFTP connection; use - * pxenv_tftp_close() instead. - * - * On x86, you must set the s_PXE::StatusCallout field to a nonzero - * value before calling this function in protected mode. You cannot - * call this function with a 32-bit stack segment. (See the relevant - * @ref pxe_x86_pmode16 "implementation note" for more details.) - * - */ -static PXENV_EXIT_t -pxenv_udp_close ( struct s_PXENV_UDP_CLOSE *pxenv_udp_close ) { - struct io_buffer *iobuf; - struct io_buffer *tmp; - - DBG ( "PXENV_UDP_CLOSE\n" ); - - /* Close UDP connection */ - intf_restart ( &pxe_udp.xfer, 0 ); - - /* Discard any received packets */ - list_for_each_entry_safe ( iobuf, tmp, &pxe_udp.list, list ) { - list_del ( &iobuf->list ); - free_iob ( iobuf ); - } - - pxenv_udp_close->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/** - * UDP WRITE - * - * @v pxenv_udp_write Pointer to a struct s_PXENV_UDP_WRITE - * @v s_PXENV_UDP_WRITE::ip Destination IP address - * @v s_PXENV_UDP_WRITE::gw Relay agent IP address, or 0.0.0.0 - * @v s_PXENV_UDP_WRITE::src_port Source UDP port, or 0 - * @v s_PXENV_UDP_WRITE::dst_port Destination UDP port - * @v s_PXENV_UDP_WRITE::buffer_size Length of the UDP payload - * @v s_PXENV_UDP_WRITE::buffer Address of the UDP payload - * @ret #PXENV_EXIT_SUCCESS Packet was transmitted successfully - * @ret #PXENV_EXIT_FAILURE Packet could not be transmitted - * @ret s_PXENV_UDP_WRITE::Status PXE status code - * @err #PXENV_STATUS_UDP_CLOSED UDP connection is not open - * @err #PXENV_STATUS_UNDI_TRANSMIT_ERROR Could not transmit packet - * - * Transmits a single UDP packet. A valid IP and UDP header will be - * prepended to the payload in s_PXENV_UDP_WRITE::buffer; the buffer - * should not contain precomputed IP and UDP headers, nor should it - * contain space allocated for these headers. The first byte of the - * buffer will be transmitted as the first byte following the UDP - * header. - * - * If s_PXENV_UDP_WRITE::gw is 0.0.0.0, normal IP routing will take - * place. See the relevant @ref pxe_routing "implementation note" for - * more details. - * - * If s_PXENV_UDP_WRITE::src_port is 0, port 2069 will be used. - * - * You must have opened a UDP connection with pxenv_udp_open() before - * calling pxenv_udp_write(). - * - * On x86, you must set the s_PXE::StatusCallout field to a nonzero - * value before calling this function in protected mode. You cannot - * call this function with a 32-bit stack segment. (See the relevant - * @ref pxe_x86_pmode16 "implementation note" for more details.) - * - * @note Etherboot currently ignores the s_PXENV_UDP_WRITE::gw - * parameter. - * - */ -static PXENV_EXIT_t -pxenv_udp_write ( struct s_PXENV_UDP_WRITE *pxenv_udp_write ) { - struct sockaddr_in dest; - struct xfer_metadata meta = { - .src = ( struct sockaddr * ) &pxe_udp.local, - .dest = ( struct sockaddr * ) &dest, - .netdev = pxe_netdev, - }; - size_t len; - struct io_buffer *iobuf; - userptr_t buffer; - int rc; - - DBG ( "PXENV_UDP_WRITE" ); - - /* Construct destination socket address */ - memset ( &dest, 0, sizeof ( dest ) ); - dest.sin_family = AF_INET; - dest.sin_addr.s_addr = pxenv_udp_write->ip; - dest.sin_port = pxenv_udp_write->dst_port; - - /* Set local (source) port. PXE spec says source port is 2069 - * if not specified. Really, this ought to be set at UDP open - * time but hey, we didn't design this API. - */ - pxe_udp.local.sin_port = pxenv_udp_write->src_port; - if ( ! pxe_udp.local.sin_port ) - pxe_udp.local.sin_port = htons ( 2069 ); - - /* FIXME: we ignore the gateway specified, since we're - * confident of being able to do our own routing. We should - * probably allow for multiple gateways. - */ - - /* Allocate and fill data buffer */ - len = pxenv_udp_write->buffer_size; - iobuf = xfer_alloc_iob ( &pxe_udp.xfer, len ); - if ( ! iobuf ) { - DBG ( " out of memory\n" ); - pxenv_udp_write->Status = PXENV_STATUS_OUT_OF_RESOURCES; - return PXENV_EXIT_FAILURE; - } - buffer = real_to_user ( pxenv_udp_write->buffer.segment, - pxenv_udp_write->buffer.offset ); - copy_from_user ( iob_put ( iobuf, len ), buffer, 0, len ); - - DBG ( " %04x:%04x+%x %d->%s:%d\n", pxenv_udp_write->buffer.segment, - pxenv_udp_write->buffer.offset, pxenv_udp_write->buffer_size, - ntohs ( pxenv_udp_write->src_port ), - inet_ntoa ( dest.sin_addr ), - ntohs ( pxenv_udp_write->dst_port ) ); - - /* Transmit packet */ - if ( ( rc = xfer_deliver ( &pxe_udp.xfer, iobuf, &meta ) ) != 0 ) { - DBG ( "PXENV_UDP_WRITE could not transmit: %s\n", - strerror ( rc ) ); - pxenv_udp_write->Status = PXENV_STATUS ( rc ); - return PXENV_EXIT_FAILURE; - } - - pxenv_udp_write->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/** - * UDP READ - * - * @v pxenv_udp_read Pointer to a struct s_PXENV_UDP_READ - * @v s_PXENV_UDP_READ::dest_ip Destination IP address, or 0.0.0.0 - * @v s_PXENV_UDP_READ::d_port Destination UDP port, or 0 - * @v s_PXENV_UDP_READ::buffer_size Size of the UDP payload buffer - * @v s_PXENV_UDP_READ::buffer Address of the UDP payload buffer - * @ret #PXENV_EXIT_SUCCESS A packet has been received - * @ret #PXENV_EXIT_FAILURE No packet has been received - * @ret s_PXENV_UDP_READ::Status PXE status code - * @ret s_PXENV_UDP_READ::src_ip Source IP address - * @ret s_PXENV_UDP_READ::dest_ip Destination IP address - * @ret s_PXENV_UDP_READ::s_port Source UDP port - * @ret s_PXENV_UDP_READ::d_port Destination UDP port - * @ret s_PXENV_UDP_READ::buffer_size Length of UDP payload - * @err #PXENV_STATUS_UDP_CLOSED UDP connection is not open - * @err #PXENV_STATUS_FAILURE No packet was ready to read - * - * Receive a single UDP packet. This is a non-blocking call; if no - * packet is ready to read, the call will return instantly with - * s_PXENV_UDP_READ::Status==PXENV_STATUS_FAILURE. - * - * If s_PXENV_UDP_READ::dest_ip is 0.0.0.0, UDP packets addressed to - * any IP address will be accepted and may be returned to the caller. - * - * If s_PXENV_UDP_READ::d_port is 0, UDP packets addressed to any UDP - * port will be accepted and may be returned to the caller. - * - * You must have opened a UDP connection with pxenv_udp_open() before - * calling pxenv_udp_read(). - * - * On x86, you must set the s_PXE::StatusCallout field to a nonzero - * value before calling this function in protected mode. You cannot - * call this function with a 32-bit stack segment. (See the relevant - * @ref pxe_x86_pmode16 "implementation note" for more details.) - * - * @note The PXE specification (version 2.1) does not state that we - * should fill in s_PXENV_UDP_READ::dest_ip and - * s_PXENV_UDP_READ::d_port, but Microsoft Windows' NTLDR program - * expects us to do so, and will fail if we don't. - * - */ -static PXENV_EXIT_t pxenv_udp_read ( struct s_PXENV_UDP_READ *pxenv_udp_read ) { - struct in_addr dest_ip_wanted = { .s_addr = pxenv_udp_read->dest_ip }; - struct in_addr dest_ip; - struct io_buffer *iobuf; - struct pxe_udp_pseudo_header *pshdr; - uint16_t d_port_wanted = pxenv_udp_read->d_port; - uint16_t d_port; - userptr_t buffer; - size_t len; - - /* Try receiving a packet, if the queue is empty */ - if ( list_empty ( &pxe_udp.list ) ) - step(); - - /* Remove first packet from the queue */ - iobuf = list_first_entry ( &pxe_udp.list, struct io_buffer, list ); - if ( ! iobuf ) { - /* No packet received */ - DBG2 ( "PXENV_UDP_READ\n" ); - goto no_packet; - } - list_del ( &iobuf->list ); - - /* Strip pseudo-header */ - assert ( iob_len ( iobuf ) >= sizeof ( *pshdr ) ); - pshdr = iobuf->data; - iob_pull ( iobuf, sizeof ( *pshdr ) ); - dest_ip.s_addr = pshdr->dest_ip; - d_port = pshdr->d_port; - DBG ( "PXENV_UDP_READ" ); - - /* Filter on destination address and/or port */ - if ( dest_ip_wanted.s_addr && - ( dest_ip_wanted.s_addr != dest_ip.s_addr ) ) { - DBG ( " wrong IP %s", inet_ntoa ( dest_ip ) ); - DBG ( " (wanted %s)\n", inet_ntoa ( dest_ip_wanted ) ); - goto drop; - } - if ( d_port_wanted && ( d_port_wanted != d_port ) ) { - DBG ( " wrong port %d", htons ( d_port ) ); - DBG ( " (wanted %d)\n", htons ( d_port_wanted ) ); - goto drop; - } - - /* Copy packet to buffer and record length */ - buffer = real_to_user ( pxenv_udp_read->buffer.segment, - pxenv_udp_read->buffer.offset ); - len = iob_len ( iobuf ); - if ( len > pxenv_udp_read->buffer_size ) - len = pxenv_udp_read->buffer_size; - copy_to_user ( buffer, 0, iobuf->data, len ); - pxenv_udp_read->buffer_size = len; - - /* Fill in source/dest information */ - pxenv_udp_read->src_ip = pshdr->src_ip; - pxenv_udp_read->s_port = pshdr->s_port; - pxenv_udp_read->dest_ip = pshdr->dest_ip; - pxenv_udp_read->d_port = pshdr->d_port; - - DBG ( " %04x:%04x+%x %s:", pxenv_udp_read->buffer.segment, - pxenv_udp_read->buffer.offset, pxenv_udp_read->buffer_size, - inet_ntoa ( *( ( struct in_addr * ) &pxenv_udp_read->src_ip ) )); - DBG ( "%d<-%s:%d\n", ntohs ( pxenv_udp_read->s_port ), - inet_ntoa ( *( ( struct in_addr * ) &pxenv_udp_read->dest_ip ) ), - ntohs ( pxenv_udp_read->d_port ) ); - - /* Free I/O buffer */ - free_iob ( iobuf ); - - pxenv_udp_read->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; - - drop: - free_iob ( iobuf ); - no_packet: - pxenv_udp_read->Status = PXENV_STATUS_FAILURE; - return PXENV_EXIT_FAILURE; -} - -/** PXE UDP API */ -struct pxe_api_call pxe_udp_api[] __pxe_api_call = { - PXE_API_CALL ( PXENV_UDP_OPEN, pxenv_udp_open, - struct s_PXENV_UDP_OPEN ), - PXE_API_CALL ( PXENV_UDP_CLOSE, pxenv_udp_close, - struct s_PXENV_UDP_CLOSE ), - PXE_API_CALL ( PXENV_UDP_WRITE, pxenv_udp_write, - struct s_PXENV_UDP_WRITE ), - PXE_API_CALL ( PXENV_UDP_READ, pxenv_udp_read, - struct s_PXENV_UDP_READ ), -}; diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_undi.c b/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_undi.c deleted file mode 100644 index 2eb68178a..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pxe/pxe_undi.c +++ /dev/null @@ -1,1084 +0,0 @@ -/** @file - * - * PXE UNDI API - * - */ - -/* - * Copyright (C) 2004 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <stdint.h> -#include <stdio.h> -#include <string.h> -#include <byteswap.h> -#include <basemem_packet.h> -#include <ipxe/netdevice.h> -#include <ipxe/iobuf.h> -#include <ipxe/device.h> -#include <ipxe/pci.h> -#include <ipxe/if_ether.h> -#include <ipxe/ip.h> -#include <ipxe/arp.h> -#include <ipxe/rarp.h> -#include <ipxe/profile.h> -#include "pxe.h" - -/** - * Count of outstanding transmitted packets - * - * This is incremented each time PXENV_UNDI_TRANSMIT is called, and - * decremented each time that PXENV_UNDI_ISR is called with the TX - * queue empty, stopping when the count reaches zero. This allows us - * to provide a pessimistic approximation of TX completion events to - * the PXE NBP simply by monitoring the netdev's TX queue. - */ -static int undi_tx_count = 0; - -struct net_device *pxe_netdev = NULL; - -/** Transmit profiler */ -static struct profiler undi_tx_profiler __profiler = { .name = "undi.tx" }; - -/** - * Set network device as current PXE network device - * - * @v netdev Network device, or NULL - */ -void pxe_set_netdev ( struct net_device *netdev ) { - - if ( pxe_netdev ) { - netdev_rx_unfreeze ( pxe_netdev ); - netdev_put ( pxe_netdev ); - } - - pxe_netdev = NULL; - - if ( netdev ) - pxe_netdev = netdev_get ( netdev ); -} - -/** - * Open PXE network device - * - * @ret rc Return status code - */ -static int pxe_netdev_open ( void ) { - int rc; - - assert ( pxe_netdev != NULL ); - - if ( ( rc = netdev_open ( pxe_netdev ) ) != 0 ) - return rc; - - netdev_rx_freeze ( pxe_netdev ); - netdev_irq ( pxe_netdev, 1 ); - - return 0; -} - -/** - * Close PXE network device - * - */ -static void pxe_netdev_close ( void ) { - - assert ( pxe_netdev != NULL ); - netdev_rx_unfreeze ( pxe_netdev ); - netdev_irq ( pxe_netdev, 0 ); - netdev_close ( pxe_netdev ); - undi_tx_count = 0; -} - -/** - * Dump multicast address list - * - * @v mcast PXE multicast address list - */ -static void pxe_dump_mcast_list ( struct s_PXENV_UNDI_MCAST_ADDRESS *mcast ) { - struct ll_protocol *ll_protocol = pxe_netdev->ll_protocol; - unsigned int i; - - for ( i = 0 ; i < mcast->MCastAddrCount ; i++ ) { - DBGC ( &pxe_netdev, " %s", - ll_protocol->ntoa ( mcast->McastAddr[i] ) ); - } -} - -/* PXENV_UNDI_STARTUP - * - * Status: working - */ -static PXENV_EXIT_t -pxenv_undi_startup ( struct s_PXENV_UNDI_STARTUP *undi_startup ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_STARTUP\n" ); - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_STARTUP called with no " - "network device\n" ); - undi_startup->Status = PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - undi_startup->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_UNDI_CLEANUP - * - * Status: working - */ -static PXENV_EXIT_t -pxenv_undi_cleanup ( struct s_PXENV_UNDI_CLEANUP *undi_cleanup ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_CLEANUP\n" ); - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_CLEANUP called with no " - "network device\n" ); - undi_cleanup->Status = PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - /* Close network device */ - pxe_netdev_close(); - - undi_cleanup->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_UNDI_INITIALIZE - * - * Status: working - */ -static PXENV_EXIT_t -pxenv_undi_initialize ( struct s_PXENV_UNDI_INITIALIZE *undi_initialize ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_INITIALIZE protocolini %08x\n", - undi_initialize->ProtocolIni ); - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_INITIALIZE called with no " - "network device\n" ); - undi_initialize->Status = PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - undi_initialize->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_UNDI_RESET_ADAPTER - * - * Status: working - */ -static PXENV_EXIT_t -pxenv_undi_reset_adapter ( struct s_PXENV_UNDI_RESET *undi_reset_adapter ) { - int rc; - - DBGC ( &pxe_netdev, "PXENV_UNDI_RESET_ADAPTER" ); - pxe_dump_mcast_list ( &undi_reset_adapter->R_Mcast_Buf ); - DBGC ( &pxe_netdev, "\n" ); - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_RESET_ADAPTER called with no " - "network device\n" ); - undi_reset_adapter->Status = PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - /* Close and reopen network device */ - pxe_netdev_close(); - if ( ( rc = pxe_netdev_open() ) != 0 ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_RESET_ADAPTER could not " - "reopen %s: %s\n", pxe_netdev->name, strerror ( rc ) ); - undi_reset_adapter->Status = PXENV_STATUS ( rc ); - return PXENV_EXIT_FAILURE; - } - - undi_reset_adapter->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_UNDI_SHUTDOWN - * - * Status: working - */ -static PXENV_EXIT_t -pxenv_undi_shutdown ( struct s_PXENV_UNDI_SHUTDOWN *undi_shutdown ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_SHUTDOWN\n" ); - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_SHUTDOWN called with no " - "network device\n" ); - undi_shutdown->Status = PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - /* Close network device */ - pxe_netdev_close(); - - undi_shutdown->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_UNDI_OPEN - * - * Status: working - */ -static PXENV_EXIT_t pxenv_undi_open ( struct s_PXENV_UNDI_OPEN *undi_open ) { - int rc; - - DBGC ( &pxe_netdev, "PXENV_UNDI_OPEN flag %04x filter %04x", - undi_open->OpenFlag, undi_open->PktFilter ); - pxe_dump_mcast_list ( &undi_open->R_Mcast_Buf ); - DBGC ( &pxe_netdev, "\n" ); - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_OPEN called with no " - "network device\n" ); - undi_open->Status = PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - /* Open network device */ - if ( ( rc = pxe_netdev_open() ) != 0 ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_OPEN could not open %s: %s\n", - pxe_netdev->name, strerror ( rc ) ); - undi_open->Status = PXENV_STATUS ( rc ); - return PXENV_EXIT_FAILURE; - } - - undi_open->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_UNDI_CLOSE - * - * Status: working - */ -static PXENV_EXIT_t pxenv_undi_close ( struct s_PXENV_UNDI_CLOSE *undi_close ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_CLOSE\n" ); - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_CLOSE called with no " - "network device\n" ); - undi_close->Status = PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - /* Close network device */ - pxe_netdev_close(); - - undi_close->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_UNDI_TRANSMIT - * - * Status: working - */ -static PXENV_EXIT_t -pxenv_undi_transmit ( struct s_PXENV_UNDI_TRANSMIT *undi_transmit ) { - struct s_PXENV_UNDI_TBD tbd; - struct DataBlk *datablk; - struct io_buffer *iobuf; - struct net_protocol *net_protocol; - struct ll_protocol *ll_protocol; - char destaddr[MAX_LL_ADDR_LEN]; - const void *ll_dest; - size_t len; - unsigned int i; - int rc; - - /* Start profiling */ - profile_start ( &undi_tx_profiler ); - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_TRANSMIT called with no " - "network device\n" ); - undi_transmit->Status = PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - DBGC2 ( &pxe_netdev, "PXENV_UNDI_TRANSMIT" ); - - /* Forcibly enable interrupts and freeze receive queue - * processing at this point, to work around callers that never - * call PXENV_UNDI_OPEN before attempting to use the UNDI API. - */ - if ( ! netdev_rx_frozen ( pxe_netdev ) ) { - netdev_rx_freeze ( pxe_netdev ); - netdev_irq ( pxe_netdev, 1 ); - } - - /* Identify network-layer protocol */ - switch ( undi_transmit->Protocol ) { - case P_IP: net_protocol = &ipv4_protocol; break; - case P_ARP: net_protocol = &arp_protocol; break; - case P_RARP: net_protocol = &rarp_protocol; break; - case P_UNKNOWN: - net_protocol = NULL; - break; - default: - DBGC2 ( &pxe_netdev, " %02x invalid protocol\n", - undi_transmit->Protocol ); - undi_transmit->Status = PXENV_STATUS_UNDI_INVALID_PARAMETER; - return PXENV_EXIT_FAILURE; - } - DBGC2 ( &pxe_netdev, " %s", - ( net_protocol ? net_protocol->name : "RAW" ) ); - - /* Calculate total packet length */ - copy_from_real ( &tbd, undi_transmit->TBD.segment, - undi_transmit->TBD.offset, sizeof ( tbd ) ); - len = tbd.ImmedLength; - DBGC2 ( &pxe_netdev, " %04x:%04x+%x", tbd.Xmit.segment, tbd.Xmit.offset, - tbd.ImmedLength ); - for ( i = 0 ; i < tbd.DataBlkCount ; i++ ) { - datablk = &tbd.DataBlock[i]; - len += datablk->TDDataLen; - DBGC2 ( &pxe_netdev, " %04x:%04x+%x", - datablk->TDDataPtr.segment, datablk->TDDataPtr.offset, - datablk->TDDataLen ); - } - - /* Allocate and fill I/O buffer */ - iobuf = alloc_iob ( MAX_LL_HEADER_LEN + - ( ( len > IOB_ZLEN ) ? len : IOB_ZLEN ) ); - if ( ! iobuf ) { - DBGC2 ( &pxe_netdev, " could not allocate iobuf\n" ); - undi_transmit->Status = PXENV_STATUS_OUT_OF_RESOURCES; - return PXENV_EXIT_FAILURE; - } - iob_reserve ( iobuf, MAX_LL_HEADER_LEN ); - copy_from_real ( iob_put ( iobuf, tbd.ImmedLength ), tbd.Xmit.segment, - tbd.Xmit.offset, tbd.ImmedLength ); - for ( i = 0 ; i < tbd.DataBlkCount ; i++ ) { - datablk = &tbd.DataBlock[i]; - copy_from_real ( iob_put ( iobuf, datablk->TDDataLen ), - datablk->TDDataPtr.segment, - datablk->TDDataPtr.offset, - datablk->TDDataLen ); - } - - /* Add link-layer header, if required to do so */ - if ( net_protocol != NULL ) { - - /* Calculate destination address */ - ll_protocol = pxe_netdev->ll_protocol; - if ( undi_transmit->XmitFlag == XMT_DESTADDR ) { - copy_from_real ( destaddr, - undi_transmit->DestAddr.segment, - undi_transmit->DestAddr.offset, - ll_protocol->ll_addr_len ); - ll_dest = destaddr; - DBGC2 ( &pxe_netdev, " DEST %s", - ll_protocol->ntoa ( ll_dest ) ); - } else { - ll_dest = pxe_netdev->ll_broadcast; - DBGC2 ( &pxe_netdev, " BCAST" ); - } - - /* Add link-layer header */ - if ( ( rc = ll_protocol->push ( pxe_netdev, iobuf, ll_dest, - pxe_netdev->ll_addr, - net_protocol->net_proto ))!=0){ - DBGC2 ( &pxe_netdev, " could not add link-layer " - "header: %s\n", strerror ( rc ) ); - free_iob ( iobuf ); - undi_transmit->Status = PXENV_STATUS ( rc ); - return PXENV_EXIT_FAILURE; - } - } - - /* Flag transmission as in-progress. Do this before starting - * to transmit the packet, because the ISR may trigger before - * we return from netdev_tx(). - */ - undi_tx_count++; - - /* Transmit packet */ - DBGC2 ( &pxe_netdev, "\n" ); - if ( ( rc = netdev_tx ( pxe_netdev, iobuf ) ) != 0 ) { - DBGC2 ( &pxe_netdev, "PXENV_UNDI_TRANSMIT could not transmit: " - "%s\n", strerror ( rc ) ); - undi_tx_count--; - undi_transmit->Status = PXENV_STATUS ( rc ); - return PXENV_EXIT_FAILURE; - } - - profile_stop ( &undi_tx_profiler ); - undi_transmit->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_UNDI_SET_MCAST_ADDRESS - * - * Status: working (for NICs that support receive-all-multicast) - */ -static PXENV_EXIT_t -pxenv_undi_set_mcast_address ( struct s_PXENV_UNDI_SET_MCAST_ADDRESS - *undi_set_mcast_address ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_SET_MCAST_ADDRESS" ); - pxe_dump_mcast_list ( &undi_set_mcast_address->R_Mcast_Buf ); - DBGC ( &pxe_netdev, "\n" ); - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_SET_MCAST_ADDRESS called with " - "no network device\n" ); - undi_set_mcast_address->Status = - PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - undi_set_mcast_address->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_UNDI_SET_STATION_ADDRESS - * - * Status: working - */ -static PXENV_EXIT_t -pxenv_undi_set_station_address ( struct s_PXENV_UNDI_SET_STATION_ADDRESS - *undi_set_station_address ) { - struct ll_protocol *ll_protocol; - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_SET_STATION_ADDRESS called " - "with no network device\n" ); - undi_set_station_address->Status = - PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - ll_protocol = pxe_netdev->ll_protocol; - DBGC ( &pxe_netdev, "PXENV_UNDI_SET_STATION_ADDRESS %s", - ll_protocol->ntoa ( undi_set_station_address->StationAddress ) ); - - /* If adapter is open, the change will have no effect; return - * an error - */ - if ( netdev_is_open ( pxe_netdev ) ) { - DBGC ( &pxe_netdev, " failed: netdev is open\n" ); - undi_set_station_address->Status = - PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - /* Update MAC address */ - memcpy ( pxe_netdev->ll_addr, - &undi_set_station_address->StationAddress, - ll_protocol->ll_addr_len ); - - DBGC ( &pxe_netdev, "\n" ); - undi_set_station_address->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_UNDI_SET_PACKET_FILTER - * - * Status: won't implement (would require driver API changes for no - * real benefit) - */ -static PXENV_EXIT_t -pxenv_undi_set_packet_filter ( struct s_PXENV_UNDI_SET_PACKET_FILTER - *undi_set_packet_filter ) { - - DBGC ( &pxe_netdev, "PXENV_UNDI_SET_PACKET_FILTER %02x\n", - undi_set_packet_filter->filter ); - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_SET_PACKET_FILTER called with " - "no network device\n" ); - undi_set_packet_filter->Status = - PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - /* Pretend that we succeeded, otherwise the 3Com DOS UNDI - * driver refuses to load. (We ignore the filter value in the - * PXENV_UNDI_OPEN call anyway.) - */ - undi_set_packet_filter->Status = PXENV_STATUS_SUCCESS; - - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_UNDI_GET_INFORMATION - * - * Status: working - */ -static PXENV_EXIT_t -pxenv_undi_get_information ( struct s_PXENV_UNDI_GET_INFORMATION - *undi_get_information ) { - struct device *dev; - struct ll_protocol *ll_protocol; - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_GET_INFORMATION called with no " - "network device\n" ); - undi_get_information->Status = PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - DBGC ( &pxe_netdev, "PXENV_UNDI_GET_INFORMATION" ); - - /* Fill in information */ - dev = pxe_netdev->dev; - ll_protocol = pxe_netdev->ll_protocol; - undi_get_information->BaseIo = dev->desc.ioaddr; - undi_get_information->IntNumber = - ( netdev_irq_supported ( pxe_netdev ) ? dev->desc.irq : 0 ); - /* Cheat: assume all cards can cope with this */ - undi_get_information->MaxTranUnit = ETH_MAX_MTU; - undi_get_information->HwType = ntohs ( ll_protocol->ll_proto ); - undi_get_information->HwAddrLen = ll_protocol->ll_addr_len; - assert ( ll_protocol->ll_addr_len <= - sizeof ( undi_get_information->CurrentNodeAddress ) ); - memcpy ( &undi_get_information->CurrentNodeAddress, - pxe_netdev->ll_addr, - sizeof ( undi_get_information->CurrentNodeAddress ) ); - ll_protocol->init_addr ( pxe_netdev->hw_addr, - &undi_get_information->PermNodeAddress ); - undi_get_information->ROMAddress = 0; - /* nic.rom_info->rom_segment; */ - /* We only provide the ability to receive or transmit a single - * packet at a time. This is a bootloader, not an OS. - */ - undi_get_information->RxBufCt = 1; - undi_get_information->TxBufCt = 1; - - DBGC ( &pxe_netdev, " io %04x irq %d mtu %d %s %s\n", - undi_get_information->BaseIo, undi_get_information->IntNumber, - undi_get_information->MaxTranUnit, ll_protocol->name, - ll_protocol->ntoa ( &undi_get_information->CurrentNodeAddress )); - undi_get_information->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_UNDI_GET_STATISTICS - * - * Status: working - */ -static PXENV_EXIT_t -pxenv_undi_get_statistics ( struct s_PXENV_UNDI_GET_STATISTICS - *undi_get_statistics ) { - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_GET_STATISTICS called with no " - "network device\n" ); - undi_get_statistics->Status = PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - DBGC ( &pxe_netdev, "PXENV_UNDI_GET_STATISTICS" ); - - /* Report statistics */ - undi_get_statistics->XmtGoodFrames = pxe_netdev->tx_stats.good; - undi_get_statistics->RcvGoodFrames = pxe_netdev->rx_stats.good; - undi_get_statistics->RcvCRCErrors = pxe_netdev->rx_stats.bad; - undi_get_statistics->RcvResourceErrors = pxe_netdev->rx_stats.bad; - DBGC ( &pxe_netdev, " txok %d rxok %d rxcrc %d rxrsrc %d\n", - undi_get_statistics->XmtGoodFrames, - undi_get_statistics->RcvGoodFrames, - undi_get_statistics->RcvCRCErrors, - undi_get_statistics->RcvResourceErrors ); - - undi_get_statistics->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_UNDI_CLEAR_STATISTICS - * - * Status: working - */ -static PXENV_EXIT_t -pxenv_undi_clear_statistics ( struct s_PXENV_UNDI_CLEAR_STATISTICS - *undi_clear_statistics ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_CLEAR_STATISTICS\n" ); - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_CLEAR_STATISTICS called with " - "no network device\n" ); - undi_clear_statistics->Status = PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - /* Clear statistics */ - memset ( &pxe_netdev->tx_stats, 0, sizeof ( pxe_netdev->tx_stats ) ); - memset ( &pxe_netdev->rx_stats, 0, sizeof ( pxe_netdev->rx_stats ) ); - - undi_clear_statistics->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_UNDI_INITIATE_DIAGS - * - * Status: won't implement (would require driver API changes for no - * real benefit) - */ -static PXENV_EXIT_t -pxenv_undi_initiate_diags ( struct s_PXENV_UNDI_INITIATE_DIAGS - *undi_initiate_diags ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_INITIATE_DIAGS failed: unsupported\n" ); - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_INITIATE_DIAGS called with no " - "network device\n" ); - undi_initiate_diags->Status = PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - undi_initiate_diags->Status = PXENV_STATUS_UNSUPPORTED; - return PXENV_EXIT_FAILURE; -} - -/* PXENV_UNDI_FORCE_INTERRUPT - * - * Status: won't implement (would require driver API changes for no - * perceptible benefit) - */ -static PXENV_EXIT_t -pxenv_undi_force_interrupt ( struct s_PXENV_UNDI_FORCE_INTERRUPT - *undi_force_interrupt ) { - DBGC ( &pxe_netdev, - "PXENV_UNDI_FORCE_INTERRUPT failed: unsupported\n" ); - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_FORCE_INTERRUPT called with no " - "network device\n" ); - undi_force_interrupt->Status = PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - undi_force_interrupt->Status = PXENV_STATUS_UNSUPPORTED; - return PXENV_EXIT_FAILURE; -} - -/* PXENV_UNDI_GET_MCAST_ADDRESS - * - * Status: working - */ -static PXENV_EXIT_t -pxenv_undi_get_mcast_address ( struct s_PXENV_UNDI_GET_MCAST_ADDRESS - *undi_get_mcast_address ) { - struct ll_protocol *ll_protocol; - struct in_addr ip = { .s_addr = undi_get_mcast_address->InetAddr }; - int rc; - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_GET_MCAST_ADDRESS called with " - "no network device\n" ); - undi_get_mcast_address->Status = - PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - DBGC ( &pxe_netdev, "PXENV_UNDI_GET_MCAST_ADDRESS %s", - inet_ntoa ( ip ) ); - - /* Hash address using the network device's link-layer protocol */ - ll_protocol = pxe_netdev->ll_protocol; - if ( ( rc = ll_protocol->mc_hash ( AF_INET, &ip, - undi_get_mcast_address->MediaAddr ))!=0){ - DBGC ( &pxe_netdev, " failed: %s\n", strerror ( rc ) ); - undi_get_mcast_address->Status = PXENV_STATUS ( rc ); - return PXENV_EXIT_FAILURE; - } - DBGC ( &pxe_netdev, "=>%s\n", - ll_protocol->ntoa ( undi_get_mcast_address->MediaAddr ) ); - - undi_get_mcast_address->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_UNDI_GET_NIC_TYPE - * - * Status: working - */ -static PXENV_EXIT_t pxenv_undi_get_nic_type ( struct s_PXENV_UNDI_GET_NIC_TYPE - *undi_get_nic_type ) { - struct device *dev; - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_GET_NIC_TYPE called with " - "no network device\n" ); - undi_get_nic_type->Status = PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - DBGC ( &pxe_netdev, "PXENV_UNDI_GET_NIC_TYPE" ); - - /* Fill in information */ - memset ( &undi_get_nic_type->info, 0, - sizeof ( undi_get_nic_type->info ) ); - dev = pxe_netdev->dev; - switch ( dev->desc.bus_type ) { - case BUS_TYPE_PCI: { - struct pci_nic_info *info = &undi_get_nic_type->info.pci; - - undi_get_nic_type->NicType = PCI_NIC; - info->Vendor_ID = dev->desc.vendor; - info->Dev_ID = dev->desc.device; - info->Base_Class = PCI_BASE_CLASS ( dev->desc.class ); - info->Sub_Class = PCI_SUB_CLASS ( dev->desc.class ); - info->Prog_Intf = PCI_PROG_INTF ( dev->desc.class ); - info->BusDevFunc = dev->desc.location; - /* Earlier versions of the PXE specification do not - * have the SubVendor_ID and SubDevice_ID fields. It - * is possible that some NBPs will not provide space - * for them, and so we must not fill them in. - */ - DBGC ( &pxe_netdev, " PCI %02x:%02x.%x %04x:%04x " - "('%04x:%04x') %02x%02x%02x rev %02x\n", - PCI_BUS ( info->BusDevFunc ), - PCI_SLOT ( info->BusDevFunc ), - PCI_FUNC ( info->BusDevFunc ), info->Vendor_ID, - info->Dev_ID, info->SubVendor_ID, info->SubDevice_ID, - info->Base_Class, info->Sub_Class, info->Prog_Intf, - info->Rev ); - break; } - case BUS_TYPE_ISAPNP: { - struct pnp_nic_info *info = &undi_get_nic_type->info.pnp; - - undi_get_nic_type->NicType = PnP_NIC; - info->EISA_Dev_ID = ( ( dev->desc.vendor << 16 ) | - dev->desc.device ); - info->CardSelNum = dev->desc.location; - /* Cheat: remaining fields are probably unnecessary, - * and would require adding extra code to isapnp.c. - */ - DBGC ( &pxe_netdev, " ISAPnP CSN %04x %08x %02x%02x%02x\n", - info->CardSelNum, info->EISA_Dev_ID, - info->Base_Class, info->Sub_Class, info->Prog_Intf ); - break; } - default: - DBGC ( &pxe_netdev, " failed: unknown bus type\n" ); - undi_get_nic_type->Status = PXENV_STATUS_FAILURE; - return PXENV_EXIT_FAILURE; - } - - undi_get_nic_type->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_UNDI_GET_IFACE_INFO - * - * Status: working - */ -static PXENV_EXIT_t -pxenv_undi_get_iface_info ( struct s_PXENV_UNDI_GET_IFACE_INFO - *undi_get_iface_info ) { - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxe_netdev, "PXENV_UNDI_GET_IFACE_INFO called with " - "no network device\n" ); - undi_get_iface_info->Status = PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - DBGC ( &pxe_netdev, "PXENV_UNDI_GET_IFACE_INFO" ); - - /* Just hand back some info, doesn't really matter what it is. - * Most PXE stacks seem to take this approach. - */ - snprintf ( ( char * ) undi_get_iface_info->IfaceType, - sizeof ( undi_get_iface_info->IfaceType ), "DIX+802.3" ); - undi_get_iface_info->LinkSpeed = 10000000; /* 10 Mbps */ - undi_get_iface_info->ServiceFlags = - ( SUPPORTED_BROADCAST | SUPPORTED_MULTICAST | - SUPPORTED_SET_STATION_ADDRESS | SUPPORTED_RESET | - SUPPORTED_OPEN_CLOSE ); - if ( netdev_irq_supported ( pxe_netdev ) ) - undi_get_iface_info->ServiceFlags |= SUPPORTED_IRQ; - memset ( undi_get_iface_info->Reserved, 0, - sizeof(undi_get_iface_info->Reserved) ); - - DBGC ( &pxe_netdev, " %s %dbps flags %08x\n", - undi_get_iface_info->IfaceType, undi_get_iface_info->LinkSpeed, - undi_get_iface_info->ServiceFlags ); - undi_get_iface_info->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/* PXENV_UNDI_GET_STATE - * - * Status: impossible due to opcode collision - */ - -/* PXENV_UNDI_ISR - * - * Status: working - */ -static PXENV_EXIT_t pxenv_undi_isr ( struct s_PXENV_UNDI_ISR *undi_isr ) { - struct io_buffer *iobuf; - size_t len; - struct ll_protocol *ll_protocol; - const void *ll_dest; - const void *ll_source; - uint16_t net_proto; - unsigned int flags; - size_t ll_hlen; - struct net_protocol *net_protocol; - unsigned int prottype; - int rc; - - /* Use a different debug colour, since UNDI ISR messages are - * likely to be interspersed amongst other UNDI messages. - */ - - /* Sanity check */ - if ( ! pxe_netdev ) { - DBGC ( &pxenv_undi_isr, "PXENV_UNDI_ISR called with " - "no network device\n" ); - undi_isr->Status = PXENV_STATUS_UNDI_INVALID_STATE; - return PXENV_EXIT_FAILURE; - } - - DBGC2 ( &pxenv_undi_isr, "PXENV_UNDI_ISR" ); - - /* Just in case some idiot actually looks at these fields when - * we weren't meant to fill them in... - */ - undi_isr->BufferLength = 0; - undi_isr->FrameLength = 0; - undi_isr->FrameHeaderLength = 0; - undi_isr->ProtType = 0; - undi_isr->PktType = 0; - - switch ( undi_isr->FuncFlag ) { - case PXENV_UNDI_ISR_IN_START : - DBGC2 ( &pxenv_undi_isr, " START" ); - - /* Call poll(). This should acknowledge the device - * interrupt and queue up any received packet. - */ - net_poll(); - - /* A 100% accurate determination of "OURS" vs "NOT - * OURS" is difficult to achieve without invasive and - * unpleasant changes to the driver model. We settle - * for always returning "OURS" if interrupts are - * currently enabled. - * - * Returning "NOT OURS" when interrupts are disabled - * allows us to avoid a potential interrupt storm when - * we are on a shared interrupt line; if we were to - * always return "OURS" then the other device's ISR - * may never be called. - */ - if ( netdev_irq_enabled ( pxe_netdev ) ) { - DBGC2 ( &pxenv_undi_isr, " OURS" ); - undi_isr->FuncFlag = PXENV_UNDI_ISR_OUT_OURS; - } else { - DBGC2 ( &pxenv_undi_isr, " NOT OURS" ); - undi_isr->FuncFlag = PXENV_UNDI_ISR_OUT_NOT_OURS; - } - - /* Disable interrupts */ - netdev_irq ( pxe_netdev, 0 ); - - break; - case PXENV_UNDI_ISR_IN_PROCESS : - case PXENV_UNDI_ISR_IN_GET_NEXT : - DBGC2 ( &pxenv_undi_isr, " %s", - ( ( undi_isr->FuncFlag == PXENV_UNDI_ISR_IN_PROCESS ) ? - "PROCESS" : "GET_NEXT" ) ); - - /* Some dumb NBPs (e.g. emBoot's winBoot/i) never call - * PXENV_UNDI_ISR with FuncFlag=PXENV_UNDI_ISR_START; - * they just sit in a tight polling loop merrily - * violating the PXE spec with repeated calls to - * PXENV_UNDI_ISR_IN_PROCESS. Force extra polls to - * cope with these out-of-spec clients. - */ - net_poll(); - - /* If we have not yet marked a TX as complete, and the - * netdev TX queue is empty, report the TX completion. - */ - if ( undi_tx_count && list_empty ( &pxe_netdev->tx_queue ) ) { - DBGC2 ( &pxenv_undi_isr, " TXC" ); - undi_tx_count--; - undi_isr->FuncFlag = PXENV_UNDI_ISR_OUT_TRANSMIT; - break; - } - - /* Remove first packet from netdev RX queue */ - iobuf = netdev_rx_dequeue ( pxe_netdev ); - if ( ! iobuf ) { - DBGC2 ( &pxenv_undi_isr, " DONE" ); - /* No more packets remaining */ - undi_isr->FuncFlag = PXENV_UNDI_ISR_OUT_DONE; - /* Re-enable interrupts */ - netdev_irq ( pxe_netdev, 1 ); - break; - } - - /* Copy packet to base memory buffer */ - len = iob_len ( iobuf ); - DBGC2 ( &pxenv_undi_isr, " RX" ); - if ( len > sizeof ( basemem_packet ) ) { - /* Should never happen */ - DBGC2 ( &pxenv_undi_isr, " overlength (%zx)", len ); - len = sizeof ( basemem_packet ); - } - memcpy ( basemem_packet, iobuf->data, len ); - - /* Strip link-layer header */ - ll_protocol = pxe_netdev->ll_protocol; - if ( ( rc = ll_protocol->pull ( pxe_netdev, iobuf, &ll_dest, - &ll_source, &net_proto, - &flags ) ) != 0 ) { - /* Assume unknown net_proto and no ll_source */ - net_proto = 0; - ll_source = NULL; - } - ll_hlen = ( len - iob_len ( iobuf ) ); - - /* Determine network-layer protocol */ - switch ( net_proto ) { - case htons ( ETH_P_IP ): - net_protocol = &ipv4_protocol; - prottype = P_IP; - break; - case htons ( ETH_P_ARP ): - net_protocol = &arp_protocol; - prottype = P_ARP; - break; - case htons ( ETH_P_RARP ): - net_protocol = &rarp_protocol; - prottype = P_RARP; - break; - default: - net_protocol = NULL; - prottype = P_UNKNOWN; - break; - } - - /* Fill in UNDI_ISR structure */ - undi_isr->FuncFlag = PXENV_UNDI_ISR_OUT_RECEIVE; - undi_isr->BufferLength = len; - undi_isr->FrameLength = len; - undi_isr->FrameHeaderLength = ll_hlen; - undi_isr->Frame.segment = rm_ds; - undi_isr->Frame.offset = __from_data16 ( basemem_packet ); - undi_isr->ProtType = prottype; - if ( flags & LL_BROADCAST ) { - undi_isr->PktType = P_BROADCAST; - } else if ( flags & LL_MULTICAST ) { - undi_isr->PktType = P_MULTICAST; - } else { - undi_isr->PktType = P_DIRECTED; - } - DBGC2 ( &pxenv_undi_isr, " %04x:%04x+%x(%x) %s hlen %d", - undi_isr->Frame.segment, undi_isr->Frame.offset, - undi_isr->BufferLength, undi_isr->FrameLength, - ( net_protocol ? net_protocol->name : "RAW" ), - undi_isr->FrameHeaderLength ); - - /* Free packet */ - free_iob ( iobuf ); - break; - default : - DBGC2 ( &pxenv_undi_isr, " INVALID(%04x)\n", - undi_isr->FuncFlag ); - - /* Should never happen */ - undi_isr->FuncFlag = PXENV_UNDI_ISR_OUT_DONE; - undi_isr->Status = PXENV_STATUS_UNDI_INVALID_PARAMETER; - return PXENV_EXIT_FAILURE; - } - - DBGC2 ( &pxenv_undi_isr, "\n" ); - undi_isr->Status = PXENV_STATUS_SUCCESS; - return PXENV_EXIT_SUCCESS; -} - -/** PXE UNDI API */ -struct pxe_api_call pxe_undi_api[] __pxe_api_call = { - PXE_API_CALL ( PXENV_UNDI_STARTUP, pxenv_undi_startup, - struct s_PXENV_UNDI_STARTUP ), - PXE_API_CALL ( PXENV_UNDI_CLEANUP, pxenv_undi_cleanup, - struct s_PXENV_UNDI_CLEANUP ), - PXE_API_CALL ( PXENV_UNDI_INITIALIZE, pxenv_undi_initialize, - struct s_PXENV_UNDI_INITIALIZE ), - PXE_API_CALL ( PXENV_UNDI_RESET_ADAPTER, pxenv_undi_reset_adapter, - struct s_PXENV_UNDI_RESET ), - PXE_API_CALL ( PXENV_UNDI_SHUTDOWN, pxenv_undi_shutdown, - struct s_PXENV_UNDI_SHUTDOWN ), - PXE_API_CALL ( PXENV_UNDI_OPEN, pxenv_undi_open, - struct s_PXENV_UNDI_OPEN ), - PXE_API_CALL ( PXENV_UNDI_CLOSE, pxenv_undi_close, - struct s_PXENV_UNDI_CLOSE ), - PXE_API_CALL ( PXENV_UNDI_TRANSMIT, pxenv_undi_transmit, - struct s_PXENV_UNDI_TRANSMIT ), - PXE_API_CALL ( PXENV_UNDI_SET_MCAST_ADDRESS, - pxenv_undi_set_mcast_address, - struct s_PXENV_UNDI_SET_MCAST_ADDRESS ), - PXE_API_CALL ( PXENV_UNDI_SET_STATION_ADDRESS, - pxenv_undi_set_station_address, - struct s_PXENV_UNDI_SET_STATION_ADDRESS ), - PXE_API_CALL ( PXENV_UNDI_SET_PACKET_FILTER, - pxenv_undi_set_packet_filter, - struct s_PXENV_UNDI_SET_PACKET_FILTER ), - PXE_API_CALL ( PXENV_UNDI_GET_INFORMATION, pxenv_undi_get_information, - struct s_PXENV_UNDI_GET_INFORMATION ), - PXE_API_CALL ( PXENV_UNDI_GET_STATISTICS, pxenv_undi_get_statistics, - struct s_PXENV_UNDI_GET_STATISTICS ), - PXE_API_CALL ( PXENV_UNDI_CLEAR_STATISTICS, pxenv_undi_clear_statistics, - struct s_PXENV_UNDI_CLEAR_STATISTICS ), - PXE_API_CALL ( PXENV_UNDI_INITIATE_DIAGS, pxenv_undi_initiate_diags, - struct s_PXENV_UNDI_INITIATE_DIAGS ), - PXE_API_CALL ( PXENV_UNDI_FORCE_INTERRUPT, pxenv_undi_force_interrupt, - struct s_PXENV_UNDI_FORCE_INTERRUPT ), - PXE_API_CALL ( PXENV_UNDI_GET_MCAST_ADDRESS, - pxenv_undi_get_mcast_address, - struct s_PXENV_UNDI_GET_MCAST_ADDRESS ), - PXE_API_CALL ( PXENV_UNDI_GET_NIC_TYPE, pxenv_undi_get_nic_type, - struct s_PXENV_UNDI_GET_NIC_TYPE ), - PXE_API_CALL ( PXENV_UNDI_GET_IFACE_INFO, pxenv_undi_get_iface_info, - struct s_PXENV_UNDI_GET_IFACE_INFO ), - PXE_API_CALL ( PXENV_UNDI_ISR, pxenv_undi_isr, - struct s_PXENV_UNDI_ISR ), -}; diff --git a/qemu/roms/ipxe/src/arch/i386/interface/pxeparent/pxeparent.c b/qemu/roms/ipxe/src/arch/i386/interface/pxeparent/pxeparent.c deleted file mode 100644 index 0b6be9a03..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/pxeparent/pxeparent.c +++ /dev/null @@ -1,283 +0,0 @@ -/* - * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -FILE_LICENCE ( GPL2_OR_LATER ); - -#include <ipxe/dhcp.h> -#include <ipxe/profile.h> -#include <pxeparent.h> -#include <pxe_api.h> -#include <pxe_types.h> -#include <pxe.h> - -/** @file - * - * Call interface to parent PXE stack - * - */ - -/* Disambiguate the various error causes */ -#define EINFO_EPXECALL \ - __einfo_uniqify ( EINFO_EPLATFORM, 0x01, \ - "External PXE API error" ) -#define EPXECALL( status ) EPLATFORM ( EINFO_EPXECALL, status ) - -/** A parent PXE API call profiler */ -struct pxeparent_profiler { - /** Total time spent performing REAL_CALL() */ - struct profiler total; - /** Time spent transitioning to real mode */ - struct profiler p2r; - /** Time spent in external code */ - struct profiler ext; - /** Time spent transitioning back to protected mode */ - struct profiler r2p; -}; - -/** PXENV_UNDI_TRANSMIT profiler */ -static struct pxeparent_profiler pxeparent_tx_profiler __profiler = { - { .name = "pxeparent.tx" }, - { .name = "pxeparent.tx_p2r" }, - { .name = "pxeparent.tx_ext" }, - { .name = "pxeparent.tx_r2p" }, -}; - -/** PXENV_UNDI_ISR profiler - * - * Note that this profiler will not see calls to - * PXENV_UNDI_ISR_IN_START, which are handled by the UNDI ISR and do - * not go via pxeparent_call(). - */ -static struct pxeparent_profiler pxeparent_isr_profiler __profiler = { - { .name = "pxeparent.isr" }, - { .name = "pxeparent.isr_p2r" }, - { .name = "pxeparent.isr_ext" }, - { .name = "pxeparent.isr_r2p" }, -}; - -/** PXE unknown API call profiler - * - * This profiler can be used to measure the overhead of a dummy PXE - * API call. - */ -static struct pxeparent_profiler pxeparent_unknown_profiler __profiler = { - { .name = "pxeparent.unknown" }, - { .name = "pxeparent.unknown_p2r" }, - { .name = "pxeparent.unknown_ext" }, - { .name = "pxeparent.unknown_r2p" }, -}; - -/** Miscellaneous PXE API call profiler */ -static struct pxeparent_profiler pxeparent_misc_profiler __profiler = { - { .name = "pxeparent.misc" }, - { .name = "pxeparent.misc_p2r" }, - { .name = "pxeparent.misc_ext" }, - { .name = "pxeparent.misc_r2p" }, -}; - -/** - * Name PXE API call - * - * @v function API call number - * @ret name API call name - */ -static inline __attribute__ (( always_inline )) const char * -pxeparent_function_name ( unsigned int function ) { - switch ( function ) { - case PXENV_START_UNDI: - return "PXENV_START_UNDI"; - case PXENV_STOP_UNDI: - return "PXENV_STOP_UNDI"; - case PXENV_UNDI_STARTUP: - return "PXENV_UNDI_STARTUP"; - case PXENV_UNDI_CLEANUP: - return "PXENV_UNDI_CLEANUP"; - case PXENV_UNDI_INITIALIZE: - return "PXENV_UNDI_INITIALIZE"; - case PXENV_UNDI_RESET_ADAPTER: - return "PXENV_UNDI_RESET_ADAPTER"; - case PXENV_UNDI_SHUTDOWN: - return "PXENV_UNDI_SHUTDOWN"; - case PXENV_UNDI_OPEN: - return "PXENV_UNDI_OPEN"; - case PXENV_UNDI_CLOSE: - return "PXENV_UNDI_CLOSE"; - case PXENV_UNDI_TRANSMIT: - return "PXENV_UNDI_TRANSMIT"; - case PXENV_UNDI_SET_MCAST_ADDRESS: - return "PXENV_UNDI_SET_MCAST_ADDRESS"; - case PXENV_UNDI_SET_STATION_ADDRESS: - return "PXENV_UNDI_SET_STATION_ADDRESS"; - case PXENV_UNDI_SET_PACKET_FILTER: - return "PXENV_UNDI_SET_PACKET_FILTER"; - case PXENV_UNDI_GET_INFORMATION: - return "PXENV_UNDI_GET_INFORMATION"; - case PXENV_UNDI_GET_STATISTICS: - return "PXENV_UNDI_GET_STATISTICS"; - case PXENV_UNDI_CLEAR_STATISTICS: - return "PXENV_UNDI_CLEAR_STATISTICS"; - case PXENV_UNDI_INITIATE_DIAGS: - return "PXENV_UNDI_INITIATE_DIAGS"; - case PXENV_UNDI_FORCE_INTERRUPT: - return "PXENV_UNDI_FORCE_INTERRUPT"; - case PXENV_UNDI_GET_MCAST_ADDRESS: - return "PXENV_UNDI_GET_MCAST_ADDRESS"; - case PXENV_UNDI_GET_NIC_TYPE: - return "PXENV_UNDI_GET_NIC_TYPE"; - case PXENV_UNDI_GET_IFACE_INFO: - return "PXENV_UNDI_GET_IFACE_INFO"; - /* - * Duplicate case value; this is a bug in the PXE specification. - * - * case PXENV_UNDI_GET_STATE: - * return "PXENV_UNDI_GET_STATE"; - */ - case PXENV_UNDI_ISR: - return "PXENV_UNDI_ISR"; - case PXENV_GET_CACHED_INFO: - return "PXENV_GET_CACHED_INFO"; - default: - return "UNKNOWN API CALL"; - } -} - -/** - * Determine applicable profiler pair (for debugging) - * - * @v function API call number - * @ret profiler Profiler - */ -static struct pxeparent_profiler * pxeparent_profiler ( unsigned int function ){ - - /* Determine applicable profiler */ - switch ( function ) { - case PXENV_UNDI_TRANSMIT: - return &pxeparent_tx_profiler; - case PXENV_UNDI_ISR: - return &pxeparent_isr_profiler; - case PXENV_UNKNOWN: - return &pxeparent_unknown_profiler; - default: - return &pxeparent_misc_profiler; - } -} - -/** - * PXE parent parameter block - * - * Used as the parameter block for all parent PXE API calls. Resides - * in base memory. - */ -static union u_PXENV_ANY __bss16 ( pxeparent_params ); -#define pxeparent_params __use_data16 ( pxeparent_params ) - -/** PXE parent entry point - * - * Used as the indirection vector for all parent PXE API calls. Resides in - * base memory. - */ -SEGOFF16_t __bss16 ( pxeparent_entry_point ); -#define pxeparent_entry_point __use_data16 ( pxeparent_entry_point ) - -/** - * Issue parent PXE API call - * - * @v entry Parent PXE stack entry point - * @v function API call number - * @v params PXE parameter block - * @v params_len Length of PXE parameter block - * @ret rc Return status code - */ -int pxeparent_call ( SEGOFF16_t entry, unsigned int function, - void *params, size_t params_len ) { - struct pxeparent_profiler *profiler = pxeparent_profiler ( function ); - PXENV_EXIT_t exit; - unsigned long started; - unsigned long stopped; - int discard_D; - int rc; - - /* Copy parameter block and entry point */ - assert ( params_len <= sizeof ( pxeparent_params ) ); - memcpy ( &pxeparent_params, params, params_len ); - memcpy ( &pxeparent_entry_point, &entry, sizeof ( entry ) ); - - /* Call real-mode entry point. This calling convention will - * work with both the !PXE and the PXENV+ entry points. - */ - profile_start ( &profiler->total ); - __asm__ __volatile__ ( REAL_CODE ( "pushl %%ebp\n\t" /* gcc bug */ - "rdtsc\n\t" - "pushl %%eax\n\t" - "pushw %%es\n\t" - "pushw %%di\n\t" - "pushw %%bx\n\t" - "lcall *pxeparent_entry_point\n\t" - "movw %%ax, %%bx\n\t" - "rdtsc\n\t" - "addw $6, %%sp\n\t" - "popl %%edx\n\t" - "popl %%ebp\n\t" /* gcc bug */ ) - : "=a" ( stopped ), "=d" ( started ), - "=b" ( exit ), "=D" ( discard_D ) - : "b" ( function ), - "D" ( __from_data16 ( &pxeparent_params ) ) - : "ecx", "esi" ); - profile_stop ( &profiler->total ); - profile_start_at ( &profiler->p2r, profile_started ( &profiler->total)); - profile_stop_at ( &profiler->p2r, started ); - profile_start_at ( &profiler->ext, started ); - profile_stop_at ( &profiler->ext, stopped ); - profile_start_at ( &profiler->r2p, stopped ); - profile_stop_at ( &profiler->r2p, profile_stopped ( &profiler->total )); - - /* Determine return status code based on PXENV_EXIT and - * PXENV_STATUS - */ - rc = ( ( exit == PXENV_EXIT_SUCCESS ) ? - 0 : -EPXECALL ( pxeparent_params.Status ) ); - - /* If anything goes wrong, print as much debug information as - * it's possible to give. - */ - if ( rc != 0 ) { - SEGOFF16_t rm_params = { - .segment = rm_ds, - .offset = __from_data16 ( &pxeparent_params ), - }; - - DBG ( "PXEPARENT %s failed: %s\n", - pxeparent_function_name ( function ), strerror ( rc ) ); - DBG ( "PXEPARENT parameters at %04x:%04x length " - "%#02zx, entry point at %04x:%04x\n", - rm_params.segment, rm_params.offset, params_len, - pxeparent_entry_point.segment, - pxeparent_entry_point.offset ); - DBG ( "PXEPARENT parameters provided:\n" ); - DBG_HDA ( rm_params, params, params_len ); - DBG ( "PXEPARENT parameters returned:\n" ); - DBG_HDA ( rm_params, &pxeparent_params, params_len ); - } - - /* Copy parameter block back */ - memcpy ( params, &pxeparent_params, params_len ); - - return rc; -} - diff --git a/qemu/roms/ipxe/src/arch/i386/interface/syslinux/com32_call.c b/qemu/roms/ipxe/src/arch/i386/interface/syslinux/com32_call.c deleted file mode 100644 index 75dcc238f..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/syslinux/com32_call.c +++ /dev/null @@ -1,191 +0,0 @@ -/* - * Copyright (C) 2008 Daniel Verkamp <daniel@drv.nu>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -/** - * @file SYSLINUX COM32 helpers - * - */ - -FILE_LICENCE ( GPL2_OR_LATER ); - -#include <stdint.h> -#include <realmode.h> -#include <comboot.h> -#include <assert.h> -#include <ipxe/uaccess.h> - -static com32sys_t __bss16 ( com32_regs ); -#define com32_regs __use_data16 ( com32_regs ) - -static uint8_t __bss16 ( com32_int_vector ); -#define com32_int_vector __use_data16 ( com32_int_vector ) - -static uint32_t __bss16 ( com32_farcall_proc ); -#define com32_farcall_proc __use_data16 ( com32_farcall_proc ) - -uint16_t __bss16 ( com32_saved_sp ); - -/** - * Interrupt call helper - */ -void __asmcall com32_intcall ( uint8_t interrupt, physaddr_t inregs_phys, physaddr_t outregs_phys ) { - - memcpy_user ( virt_to_user( &com32_regs ), 0, - phys_to_user ( inregs_phys ), 0, - sizeof(com32sys_t) ); - - com32_int_vector = interrupt; - - __asm__ __volatile__ ( - REAL_CODE ( /* Save all registers */ - "pushal\n\t" - "pushw %%ds\n\t" - "pushw %%es\n\t" - "pushw %%fs\n\t" - "pushw %%gs\n\t" - /* Mask off unsafe flags */ - "movl (com32_regs + 40), %%eax\n\t" - "andl $0x200cd7, %%eax\n\t" - "movl %%eax, (com32_regs + 40)\n\t" - /* Load com32_regs into the actual registers */ - "movw %%sp, %%ss:(com32_saved_sp)\n\t" - "movw $com32_regs, %%sp\n\t" - "popw %%gs\n\t" - "popw %%fs\n\t" - "popw %%es\n\t" - "popw %%ds\n\t" - "popal\n\t" - "popfl\n\t" - "movw %%ss:(com32_saved_sp), %%sp\n\t" - /* patch INT instruction */ - "pushw %%ax\n\t" - "movb %%ss:(com32_int_vector), %%al\n\t" - "movb %%al, %%cs:(com32_intcall_instr + 1)\n\t" - /* perform a jump to avoid problems with cache - * consistency in self-modifying code on some CPUs (486) - */ - "jmp 1f\n" - "1:\n\t" - "popw %%ax\n\t" - "com32_intcall_instr:\n\t" - /* INT instruction to be patched */ - "int $0xFF\n\t" - /* Copy regs back to com32_regs */ - "movw %%sp, %%ss:(com32_saved_sp)\n\t" - "movw $(com32_regs + 44), %%sp\n\t" - "pushfl\n\t" - "pushal\n\t" - "pushw %%ds\n\t" - "pushw %%es\n\t" - "pushw %%fs\n\t" - "pushw %%gs\n\t" - "movw %%ss:(com32_saved_sp), %%sp\n\t" - /* Restore registers */ - "popw %%gs\n\t" - "popw %%fs\n\t" - "popw %%es\n\t" - "popw %%ds\n\t" - "popal\n\t") - : : ); - - if ( outregs_phys ) { - memcpy_user ( phys_to_user ( outregs_phys ), 0, - virt_to_user( &com32_regs ), 0, - sizeof(com32sys_t) ); - } -} - -/** - * Farcall helper - */ -void __asmcall com32_farcall ( uint32_t proc, physaddr_t inregs_phys, physaddr_t outregs_phys ) { - - memcpy_user ( virt_to_user( &com32_regs ), 0, - phys_to_user ( inregs_phys ), 0, - sizeof(com32sys_t) ); - - com32_farcall_proc = proc; - - __asm__ __volatile__ ( - REAL_CODE ( /* Save all registers */ - "pushal\n\t" - "pushw %%ds\n\t" - "pushw %%es\n\t" - "pushw %%fs\n\t" - "pushw %%gs\n\t" - /* Mask off unsafe flags */ - "movl (com32_regs + 40), %%eax\n\t" - "andl $0x200cd7, %%eax\n\t" - "movl %%eax, (com32_regs + 40)\n\t" - /* Load com32_regs into the actual registers */ - "movw %%sp, %%ss:(com32_saved_sp)\n\t" - "movw $com32_regs, %%sp\n\t" - "popw %%gs\n\t" - "popw %%fs\n\t" - "popw %%es\n\t" - "popw %%ds\n\t" - "popal\n\t" - "popfl\n\t" - "movw %%ss:(com32_saved_sp), %%sp\n\t" - /* Call procedure */ - "lcall *%%ss:(com32_farcall_proc)\n\t" - /* Copy regs back to com32_regs */ - "movw %%sp, %%ss:(com32_saved_sp)\n\t" - "movw $(com32_regs + 44), %%sp\n\t" - "pushfl\n\t" - "pushal\n\t" - "pushw %%ds\n\t" - "pushw %%es\n\t" - "pushw %%fs\n\t" - "pushw %%gs\n\t" - "movw %%ss:(com32_saved_sp), %%sp\n\t" - /* Restore registers */ - "popw %%gs\n\t" - "popw %%fs\n\t" - "popw %%es\n\t" - "popw %%ds\n\t" - "popal\n\t") - : : ); - - if ( outregs_phys ) { - memcpy_user ( phys_to_user ( outregs_phys ), 0, - virt_to_user( &com32_regs ), 0, - sizeof(com32sys_t) ); - } -} - -/** - * CDECL farcall helper - */ -int __asmcall com32_cfarcall ( uint32_t proc, physaddr_t stack, size_t stacksz ) { - int32_t eax; - - copy_user_to_rm_stack ( phys_to_user ( stack ), stacksz ); - com32_farcall_proc = proc; - - __asm__ __volatile__ ( - REAL_CODE ( "lcall *%%ss:(com32_farcall_proc)\n\t" ) - : "=a" (eax) - : - : "ecx", "edx" ); - - remove_user_from_rm_stack ( 0, stacksz ); - - return eax; -} diff --git a/qemu/roms/ipxe/src/arch/i386/interface/syslinux/com32_wrapper.S b/qemu/roms/ipxe/src/arch/i386/interface/syslinux/com32_wrapper.S deleted file mode 100644 index c9d1452b4..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/syslinux/com32_wrapper.S +++ /dev/null @@ -1,97 +0,0 @@ -/* - * Copyright (C) 2008 Daniel Verkamp <daniel@drv.nu>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -FILE_LICENCE ( GPL2_OR_LATER ) - - .text - .arch i386 - .code32 - - .globl com32_farcall_wrapper -com32_farcall_wrapper: - - movl $com32_farcall, %eax - jmp com32_wrapper - - - .globl com32_cfarcall_wrapper -com32_cfarcall_wrapper: - - movl $com32_cfarcall, %eax - jmp com32_wrapper - - - .globl com32_intcall_wrapper -com32_intcall_wrapper: - - movl $com32_intcall, %eax - /*jmp com32_wrapper*/ /* fall through */ - -com32_wrapper: - cli - - /* Switch to internal virtual address space */ - call _phys_to_virt - - mov %eax, (com32_helper_function) - - /* Save external COM32 stack pointer */ - movl %esp, (com32_external_esp) - - /* Copy arguments to caller-save registers */ - movl 12(%esp), %eax - movl 8(%esp), %ecx - movl 4(%esp), %edx - - /* Switch to internal stack */ - movl (com32_internal_esp), %esp - - /* Copy arguments to internal stack */ - pushl %eax - pushl %ecx - pushl %edx - - call *(com32_helper_function) - - /* Clean up stack */ - addl $12, %esp - - /* Save internal stack pointer and restore external stack pointer */ - movl %esp, (com32_internal_esp) - movl (com32_external_esp), %esp - - /* Switch to external flat physical address space */ - call _virt_to_phys - - sti - ret - - - .data - -/* Internal iPXE virtual address space %esp */ -.globl com32_internal_esp -.lcomm com32_internal_esp, 4 - -/* External flat physical address space %esp */ -.globl com32_external_esp -.lcomm com32_external_esp, 4 - -/* Function pointer of helper to call */ -.lcomm com32_helper_function, 4 diff --git a/qemu/roms/ipxe/src/arch/i386/interface/syslinux/comboot_call.c b/qemu/roms/ipxe/src/arch/i386/interface/syslinux/comboot_call.c deleted file mode 100644 index 69d94c407..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/syslinux/comboot_call.c +++ /dev/null @@ -1,717 +0,0 @@ -/* - * Copyright (C) 2008 Daniel Verkamp <daniel@drv.nu>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -/** - * @file SYSLINUX COMBOOT API - * - */ - -FILE_LICENCE ( GPL2_OR_LATER ); - -#include <errno.h> -#include <realmode.h> -#include <biosint.h> -#include <ipxe/console.h> -#include <stdlib.h> -#include <comboot.h> -#include <bzimage.h> -#include <pxe_call.h> -#include <setjmp.h> -#include <string.h> -#include <ipxe/posix_io.h> -#include <ipxe/process.h> -#include <ipxe/serial.h> -#include <ipxe/init.h> -#include <ipxe/image.h> -#include <ipxe/version.h> -#include <usr/imgmgmt.h> - -/** The "SYSLINUX" version string */ -static char __bss16_array ( syslinux_version, [32] ); -#define syslinux_version __use_data16 ( syslinux_version ) - -/** The "SYSLINUX" copyright string */ -static char __data16_array ( syslinux_copyright, [] ) = " http://ipxe.org"; -#define syslinux_copyright __use_data16 ( syslinux_copyright ) - -static char __data16_array ( syslinux_configuration_file, [] ) = ""; -#define syslinux_configuration_file __use_data16 ( syslinux_configuration_file ) - -/** Feature flags */ -static uint8_t __data16 ( comboot_feature_flags ) = COMBOOT_FEATURE_IDLE_LOOP; -#define comboot_feature_flags __use_data16 ( comboot_feature_flags ) - -typedef union { - syslinux_pm_regs pm; syslinux_rm_regs rm; -} syslinux_regs; - -/** Initial register values for INT 22h AX=1Ah and 1Bh */ -static syslinux_regs __text16 ( comboot_initial_regs ); -#define comboot_initial_regs __use_text16 ( comboot_initial_regs ) - -static struct segoff __text16 ( int20_vector ); -#define int20_vector __use_text16 ( int20_vector ) - -static struct segoff __text16 ( int21_vector ); -#define int21_vector __use_text16 ( int21_vector ) - -static struct segoff __text16 ( int22_vector ); -#define int22_vector __use_text16 ( int22_vector ) - -extern void int20_wrapper ( void ); -extern void int21_wrapper ( void ); -extern void int22_wrapper ( void ); - -/* setjmp/longjmp context buffer used to return after loading an image */ -rmjmp_buf comboot_return; - -/* Mode flags set by INT 22h AX=0017h */ -static uint16_t comboot_graphics_mode = 0; - -/** - * Print a string with a particular terminator - */ -static void print_user_string ( unsigned int segment, unsigned int offset, char terminator ) { - int i = 0; - char c; - userptr_t str = real_to_user ( segment, offset ); - for ( ; ; ) { - copy_from_user ( &c, str, i, 1 ); - if ( c == terminator ) break; - putchar ( c ); - i++; - } -} - - -/** - * Perform a series of memory copies from a list in low memory - */ -static void shuffle ( unsigned int list_segment, unsigned int list_offset, unsigned int count ) -{ - comboot_shuffle_descriptor shuf[COMBOOT_MAX_SHUFFLE_DESCRIPTORS]; - unsigned int i; - - /* Copy shuffle descriptor list so it doesn't get overwritten */ - copy_from_user ( shuf, real_to_user ( list_segment, list_offset ), 0, - count * sizeof( comboot_shuffle_descriptor ) ); - - /* Do the copies */ - for ( i = 0; i < count; i++ ) { - userptr_t src_u = phys_to_user ( shuf[ i ].src ); - userptr_t dest_u = phys_to_user ( shuf[ i ].dest ); - - if ( shuf[ i ].src == 0xFFFFFFFF ) { - /* Fill with 0 instead of copying */ - memset_user ( dest_u, 0, 0, shuf[ i ].len ); - } else if ( shuf[ i ].dest == 0xFFFFFFFF ) { - /* Copy new list of descriptors */ - count = shuf[ i ].len / sizeof( comboot_shuffle_descriptor ); - assert ( count <= COMBOOT_MAX_SHUFFLE_DESCRIPTORS ); - copy_from_user ( shuf, src_u, 0, shuf[ i ].len ); - i = -1; - } else { - /* Regular copy */ - memmove_user ( dest_u, 0, src_u, 0, shuf[ i ].len ); - } - } -} - - -/** - * Set default text mode - */ -void comboot_force_text_mode ( void ) { - if ( comboot_graphics_mode & COMBOOT_VIDEO_VESA ) { - /* Set VGA mode 3 via VESA VBE mode set */ - __asm__ __volatile__ ( - REAL_CODE ( - "mov $0x4F02, %%ax\n\t" - "mov $0x03, %%bx\n\t" - "int $0x10\n\t" - ) - : : ); - } else if ( comboot_graphics_mode & COMBOOT_VIDEO_GRAPHICS ) { - /* Set VGA mode 3 via standard VGA mode set */ - __asm__ __volatile__ ( - REAL_CODE ( - "mov $0x03, %%ax\n\t" - "int $0x10\n\t" - ) - : : ); - } - - comboot_graphics_mode = 0; -} - - -/** - * Fetch kernel and optional initrd - */ -static int comboot_fetch_kernel ( char *kernel_file, char *cmdline ) { - struct image *kernel; - struct image *initrd; - char *initrd_file; - int rc; - - /* Find initrd= parameter, if any */ - if ( ( initrd_file = strstr ( cmdline, "initrd=" ) ) != NULL ) { - char *initrd_end; - - /* skip "initrd=" */ - initrd_file += 7; - - /* Find terminating space, if any, and replace with NUL */ - initrd_end = strchr ( initrd_file, ' ' ); - if ( initrd_end ) - *initrd_end = '\0'; - - DBG ( "COMBOOT: fetching initrd '%s'\n", initrd_file ); - - /* Fetch initrd */ - if ( ( rc = imgdownload_string ( initrd_file, 0, - &initrd ) ) != 0 ) { - DBG ( "COMBOOT: could not fetch initrd: %s\n", - strerror ( rc ) ); - return rc; - } - - /* Restore space after initrd name, if applicable */ - if ( initrd_end ) - *initrd_end = ' '; - } - - DBG ( "COMBOOT: fetching kernel '%s'\n", kernel_file ); - - /* Fetch kernel */ - if ( ( rc = imgdownload_string ( kernel_file, 0, &kernel ) ) != 0 ) { - DBG ( "COMBOOT: could not fetch kernel: %s\n", - strerror ( rc ) ); - return rc; - } - - /* Replace comboot image with kernel */ - if ( ( rc = image_replace ( kernel ) ) != 0 ) { - DBG ( "COMBOOT: could not replace with kernel: %s\n", - strerror ( rc ) ); - return rc; - } - - return 0; -} - - -/** - * Terminate program interrupt handler - */ -static __asmcall void int20 ( struct i386_all_regs *ix86 __unused ) { - rmlongjmp ( comboot_return, COMBOOT_EXIT ); -} - - -/** - * DOS-compatible API - */ -static __asmcall void int21 ( struct i386_all_regs *ix86 ) { - ix86->flags |= CF; - - switch ( ix86->regs.ah ) { - case 0x00: - case 0x4C: /* Terminate program */ - rmlongjmp ( comboot_return, COMBOOT_EXIT ); - break; - - case 0x01: /* Get Key with Echo */ - case 0x08: /* Get Key without Echo */ - /* TODO: handle extended characters? */ - ix86->regs.al = getchar( ); - - /* Enter */ - if ( ix86->regs.al == 0x0A ) - ix86->regs.al = 0x0D; - - if ( ix86->regs.ah == 0x01 ) - putchar ( ix86->regs.al ); - - ix86->flags &= ~CF; - break; - - case 0x02: /* Write Character */ - putchar ( ix86->regs.dl ); - ix86->flags &= ~CF; - break; - - case 0x04: /* Write Character to Serial Port */ - if ( serial_console.base ) { - uart_transmit ( &serial_console, ix86->regs.dl ); - ix86->flags &= ~CF; - } - break; - - case 0x09: /* Write DOS String to Console */ - print_user_string ( ix86->segs.ds, ix86->regs.dx, '$' ); - ix86->flags &= ~CF; - break; - - case 0x0B: /* Check Keyboard */ - if ( iskey() ) - ix86->regs.al = 0xFF; - else - ix86->regs.al = 0x00; - - ix86->flags &= ~CF; - break; - - case 0x30: /* Check DOS Version */ - /* Bottom halves all 0; top halves spell "SYSLINUX" */ - ix86->regs.eax = 0x59530000; - ix86->regs.ebx = 0x4C530000; - ix86->regs.ecx = 0x4E490000; - ix86->regs.edx = 0x58550000; - ix86->flags &= ~CF; - break; - - default: - DBG ( "COMBOOT unknown int21 function %02x\n", ix86->regs.ah ); - break; - } -} - - -/** - * Dispatch PXE API call weakly - * - * @v ix86 Registers for PXE call - * @ret present Zero if the PXE stack is present, nonzero if not - * - * A successful return only indicates that the PXE stack was available - * for dispatching the call; it says nothing about the success of - * whatever the call asked for. - */ -__weak int pxe_api_call_weak ( struct i386_all_regs *ix86 __unused ) { - return -1; -} - -/** - * SYSLINUX API - */ -static __asmcall void int22 ( struct i386_all_regs *ix86 ) { - ix86->flags |= CF; - - switch ( ix86->regs.ax ) { - case 0x0001: /* Get Version */ - - /* Number of INT 22h API functions available */ - ix86->regs.ax = 0x001D; - - /* SYSLINUX version number */ - ix86->regs.ch = 0; /* major */ - ix86->regs.cl = 0; /* minor */ - - /* SYSLINUX derivative ID */ - ix86->regs.dl = BZI_LOADER_TYPE_IPXE; - - /* SYSLINUX version */ - snprintf ( syslinux_version, sizeof ( syslinux_version ), - "\r\niPXE %s", product_version ); - - /* SYSLINUX version and copyright strings */ - ix86->segs.es = rm_ds; - ix86->regs.si = ( ( unsigned ) __from_data16 ( syslinux_version ) ); - ix86->regs.di = ( ( unsigned ) __from_data16 ( syslinux_copyright ) ); - - ix86->flags &= ~CF; - break; - - case 0x0002: /* Write String */ - print_user_string ( ix86->segs.es, ix86->regs.bx, '\0' ); - ix86->flags &= ~CF; - break; - - case 0x0003: /* Run command */ - { - userptr_t cmd_u = real_to_user ( ix86->segs.es, ix86->regs.bx ); - int len = strlen_user ( cmd_u, 0 ); - char cmd[len + 1]; - copy_from_user ( cmd, cmd_u, 0, len + 1 ); - DBG ( "COMBOOT: executing command '%s'\n", cmd ); - system ( cmd ); - DBG ( "COMBOOT: exiting after executing command...\n" ); - rmlongjmp ( comboot_return, COMBOOT_EXIT_COMMAND ); - } - break; - - case 0x0004: /* Run default command */ - /* FIXME: just exit for now */ - rmlongjmp ( comboot_return, COMBOOT_EXIT_COMMAND ); - break; - - case 0x0005: /* Force text mode */ - comboot_force_text_mode ( ); - ix86->flags &= ~CF; - break; - - case 0x0006: /* Open file */ - { - int fd; - userptr_t file_u = real_to_user ( ix86->segs.es, ix86->regs.si ); - int len = strlen_user ( file_u, 0 ); - char file[len + 1]; - - copy_from_user ( file, file_u, 0, len + 1 ); - - if ( file[0] == '\0' ) { - DBG ( "COMBOOT: attempted open with empty file name\n" ); - break; - } - - DBG ( "COMBOOT: opening file '%s'\n", file ); - - fd = open ( file ); - - if ( fd < 0 ) { - DBG ( "COMBOOT: error opening file %s\n", file ); - break; - } - - /* This relies on the fact that a iPXE POSIX fd will - * always fit in 16 bits. - */ -#if (POSIX_FD_MAX > 65535) -#error POSIX_FD_MAX too large -#endif - ix86->regs.si = (uint16_t) fd; - - ix86->regs.cx = COMBOOT_FILE_BLOCKSZ; - ix86->regs.eax = fsize ( fd ); - ix86->flags &= ~CF; - } - break; - - case 0x0007: /* Read file */ - { - int fd = ix86->regs.si; - int len = ix86->regs.cx * COMBOOT_FILE_BLOCKSZ; - int rc; - fd_set fds; - userptr_t buf = real_to_user ( ix86->segs.es, ix86->regs.bx ); - - /* Wait for data ready to read */ - FD_ZERO ( &fds ); - FD_SET ( fd, &fds ); - - select ( &fds, 1 ); - - rc = read_user ( fd, buf, 0, len ); - if ( rc < 0 ) { - DBG ( "COMBOOT: read failed\n" ); - ix86->regs.si = 0; - break; - } - - ix86->regs.ecx = rc; - ix86->flags &= ~CF; - } - break; - - case 0x0008: /* Close file */ - { - int fd = ix86->regs.si; - close ( fd ); - ix86->flags &= ~CF; - } - break; - - case 0x0009: /* Call PXE Stack */ - if ( pxe_api_call_weak ( ix86 ) != 0 ) - ix86->flags |= CF; - else - ix86->flags &= ~CF; - break; - - case 0x000A: /* Get Derivative-Specific Information */ - - /* iPXE has its own derivative ID, so there is no defined - * output here; just return AL for now */ - ix86->regs.al = BZI_LOADER_TYPE_IPXE; - ix86->flags &= ~CF; - break; - - case 0x000B: /* Get Serial Console Configuration */ - if ( serial_console.base ) { - ix86->regs.dx = ( ( intptr_t ) serial_console.base ); - ix86->regs.cx = serial_console.divisor; - ix86->regs.bx = 0; - ix86->flags &= ~CF; - } - break; - - case 0x000C: /* Perform final cleanup */ - shutdown_boot(); - break; - - case 0x000E: /* Get configuration file name */ - /* FIXME: stub */ - ix86->segs.es = rm_ds; - ix86->regs.bx = ( ( unsigned ) __from_data16 ( syslinux_configuration_file ) ); - ix86->flags &= ~CF; - break; - - case 0x000F: /* Get IPAPPEND strings */ - /* FIXME: stub */ - ix86->regs.cx = 0; - ix86->segs.es = 0; - ix86->regs.bx = 0; - ix86->flags &= ~CF; - break; - - case 0x0010: /* Resolve hostname */ - { - userptr_t hostname_u = real_to_user ( ix86->segs.es, ix86->regs.bx ); - int len = strlen_user ( hostname_u, 0 ); - char hostname[len]; - struct in_addr addr; - - copy_from_user ( hostname, hostname_u, 0, len + 1 ); - - /* TODO: - * "If the hostname does not contain a dot (.), the - * local domain name is automatically appended." - */ - - comboot_resolv ( hostname, &addr ); - - ix86->regs.eax = addr.s_addr; - ix86->flags &= ~CF; - } - break; - - case 0x0011: /* Maximum number of shuffle descriptors */ - ix86->regs.cx = COMBOOT_MAX_SHUFFLE_DESCRIPTORS; - ix86->flags &= ~CF; - break; - - case 0x0012: /* Cleanup, shuffle and boot */ - if ( ix86->regs.cx > COMBOOT_MAX_SHUFFLE_DESCRIPTORS ) - break; - - /* Perform final cleanup */ - shutdown_boot(); - - /* Perform sequence of copies */ - shuffle ( ix86->segs.es, ix86->regs.di, ix86->regs.cx ); - - /* Jump to real-mode entry point */ - __asm__ __volatile__ ( - REAL_CODE ( - "pushw %0\n\t" - "popw %%ds\n\t" - "pushl %1\n\t" - "lret\n\t" - ) - : - : "r" ( ix86->segs.ds ), - "r" ( ix86->regs.ebp ), - "d" ( ix86->regs.ebx ), - "S" ( ix86->regs.esi ) ); - - assert ( 0 ); /* Execution should never reach this point */ - - break; - - case 0x0013: /* Idle loop call */ - step ( ); - ix86->flags &= ~CF; - break; - - case 0x0015: /* Get feature flags */ - ix86->segs.es = rm_ds; - ix86->regs.bx = ( ( unsigned ) __from_data16 ( &comboot_feature_flags ) ); - ix86->regs.cx = 1; /* Number of feature flag bytes */ - ix86->flags &= ~CF; - break; - - case 0x0016: /* Run kernel image */ - { - userptr_t file_u = real_to_user ( ix86->segs.ds, ix86->regs.si ); - userptr_t cmd_u = real_to_user ( ix86->segs.es, ix86->regs.bx ); - int file_len = strlen_user ( file_u, 0 ); - int cmd_len = strlen_user ( cmd_u, 0 ); - char file[file_len + 1]; - char cmd[cmd_len + 1]; - - copy_from_user ( file, file_u, 0, file_len + 1 ); - copy_from_user ( cmd, cmd_u, 0, cmd_len + 1 ); - - DBG ( "COMBOOT: run kernel %s %s\n", file, cmd ); - comboot_fetch_kernel ( file, cmd ); - /* Technically, we should return if we - * couldn't load the kernel, but it's not safe - * to do that since we have just overwritten - * part of the COMBOOT program's memory space. - */ - DBG ( "COMBOOT: exiting to run kernel...\n" ); - rmlongjmp ( comboot_return, COMBOOT_EXIT_RUN_KERNEL ); - } - break; - - case 0x0017: /* Report video mode change */ - comboot_graphics_mode = ix86->regs.bx; - ix86->flags &= ~CF; - break; - - case 0x0018: /* Query custom font */ - /* FIXME: stub */ - ix86->regs.al = 0; - ix86->segs.es = 0; - ix86->regs.bx = 0; - ix86->flags &= ~CF; - break; - - case 0x001B: /* Cleanup, shuffle and boot to real mode */ - if ( ix86->regs.cx > COMBOOT_MAX_SHUFFLE_DESCRIPTORS ) - break; - - /* Perform final cleanup */ - shutdown_boot(); - - /* Perform sequence of copies */ - shuffle ( ix86->segs.es, ix86->regs.di, ix86->regs.cx ); - - /* Copy initial register values to .text16 */ - memcpy_user ( real_to_user ( rm_cs, (unsigned) __from_text16 ( &comboot_initial_regs ) ), 0, - real_to_user ( ix86->segs.ds, ix86->regs.si ), 0, - sizeof(syslinux_rm_regs) ); - - /* Load initial register values */ - __asm__ __volatile__ ( - REAL_CODE ( - /* Point SS:SP at the register value structure */ - "pushw %%cs\n\t" - "popw %%ss\n\t" - "movw $comboot_initial_regs, %%sp\n\t" - - /* Segment registers */ - "popw %%es\n\t" - "popw %%ax\n\t" /* Skip CS */ - "popw %%ds\n\t" - "popw %%ax\n\t" /* Skip SS for now */ - "popw %%fs\n\t" - "popw %%gs\n\t" - - /* GP registers */ - "popl %%eax\n\t" - "popl %%ecx\n\t" - "popl %%edx\n\t" - "popl %%ebx\n\t" - "popl %%ebp\n\t" /* Skip ESP for now */ - "popl %%ebp\n\t" - "popl %%esi\n\t" - "popl %%edi\n\t" - - /* Load correct SS:ESP */ - "movw $(comboot_initial_regs + 6), %%sp\n\t" - "popw %%ss\n\t" - "movl %%cs:(comboot_initial_regs + 28), %%esp\n\t" - - "ljmp *%%cs:(comboot_initial_regs + 44)\n\t" - ) - : : ); - - break; - - case 0x001C: /* Get pointer to auxilliary data vector */ - /* FIXME: stub */ - ix86->regs.cx = 0; /* Size of the ADV */ - ix86->flags &= ~CF; - break; - - case 0x001D: /* Write auxilliary data vector */ - /* FIXME: stub */ - ix86->flags &= ~CF; - break; - - default: - DBG ( "COMBOOT unknown int22 function %04x\n", ix86->regs.ax ); - break; - } -} - -/** - * Hook BIOS interrupts related to COMBOOT API (INT 20h, 21h, 22h) - */ -void hook_comboot_interrupts ( ) { - - __asm__ __volatile__ ( - TEXT16_CODE ( "\nint20_wrapper:\n\t" - "pushl %0\n\t" - "pushw %%cs\n\t" - "call prot_call\n\t" - "addw $4, %%sp\n\t" - "call patch_cf\n\t" - "iret\n\t" ) - : : "i" ( int20 ) ); - - hook_bios_interrupt ( 0x20, ( unsigned int ) int20_wrapper, - &int20_vector ); - - __asm__ __volatile__ ( - TEXT16_CODE ( "\nint21_wrapper:\n\t" - "pushl %0\n\t" - "pushw %%cs\n\t" - "call prot_call\n\t" - "addw $4, %%sp\n\t" - "call patch_cf\n\t" - "iret\n\t" ) - : : "i" ( int21 ) ); - - hook_bios_interrupt ( 0x21, ( unsigned int ) int21_wrapper, - &int21_vector ); - - __asm__ __volatile__ ( - TEXT16_CODE ( "\nint22_wrapper:\n\t" - "pushl %0\n\t" - "pushw %%cs\n\t" - "call prot_call\n\t" - "addw $4, %%sp\n\t" - "call patch_cf\n\t" - "iret\n\t" ) - : : "i" ( int22) ); - - hook_bios_interrupt ( 0x22, ( unsigned int ) int22_wrapper, - &int22_vector ); -} - -/** - * Unhook BIOS interrupts related to COMBOOT API (INT 20h, 21h, 22h) - */ -void unhook_comboot_interrupts ( ) { - - unhook_bios_interrupt ( 0x20, ( unsigned int ) int20_wrapper, - &int20_vector ); - - unhook_bios_interrupt ( 0x21, ( unsigned int ) int21_wrapper, - &int21_vector ); - - unhook_bios_interrupt ( 0x22, ( unsigned int ) int22_wrapper, - &int22_vector ); -} - -/* Avoid dragging in serial console support unconditionally */ -struct uart serial_console __attribute__ (( weak )); diff --git a/qemu/roms/ipxe/src/arch/i386/interface/syslinux/comboot_resolv.c b/qemu/roms/ipxe/src/arch/i386/interface/syslinux/comboot_resolv.c deleted file mode 100644 index 03bbfd04a..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/syslinux/comboot_resolv.c +++ /dev/null @@ -1,61 +0,0 @@ -#include <errno.h> -#include <comboot.h> -#include <ipxe/in.h> -#include <ipxe/list.h> -#include <ipxe/process.h> -#include <ipxe/resolv.h> - -FILE_LICENCE ( GPL2_OR_LATER ); - -struct comboot_resolver { - struct interface intf; - int rc; - struct in_addr addr; -}; - -static void comboot_resolv_close ( struct comboot_resolver *comboot_resolver, - int rc ) { - comboot_resolver->rc = rc; - intf_shutdown ( &comboot_resolver->intf, rc ); -} - -static void comboot_resolv_done ( struct comboot_resolver *comboot_resolver, - struct sockaddr *sa ) { - struct sockaddr_in *sin; - - if ( sa->sa_family == AF_INET ) { - sin = ( ( struct sockaddr_in * ) sa ); - comboot_resolver->addr = sin->sin_addr; - } -} - -static struct interface_operation comboot_resolv_op[] = { - INTF_OP ( intf_close, struct comboot_resolver *, comboot_resolv_close ), - INTF_OP ( resolv_done, struct comboot_resolver *, comboot_resolv_done ), -}; - -static struct interface_descriptor comboot_resolv_desc = - INTF_DESC ( struct comboot_resolver, intf, comboot_resolv_op ); - -static struct comboot_resolver comboot_resolver = { - .intf = INTF_INIT ( comboot_resolv_desc ), -}; - -int comboot_resolv ( const char *name, struct in_addr *address ) { - int rc; - - comboot_resolver.rc = -EINPROGRESS; - comboot_resolver.addr.s_addr = 0; - - if ( ( rc = resolv ( &comboot_resolver.intf, name, NULL ) ) != 0 ) - return rc; - - while ( comboot_resolver.rc == -EINPROGRESS ) - step(); - - if ( ! comboot_resolver.addr.s_addr ) - return -EAFNOSUPPORT; - - *address = comboot_resolver.addr; - return comboot_resolver.rc; -} diff --git a/qemu/roms/ipxe/src/arch/i386/interface/vmware/guestinfo.c b/qemu/roms/ipxe/src/arch/i386/interface/vmware/guestinfo.c deleted file mode 100644 index a0530c8d1..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/vmware/guestinfo.c +++ /dev/null @@ -1,271 +0,0 @@ -/* - * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -FILE_LICENCE ( GPL2_OR_LATER ); - -/** @file - * - * VMware GuestInfo settings - * - */ - -#include <stdint.h> -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <errno.h> -#include <ipxe/init.h> -#include <ipxe/settings.h> -#include <ipxe/netdevice.h> -#include <ipxe/guestrpc.h> - -/** GuestInfo GuestRPC channel */ -static int guestinfo_channel; - -/** - * Fetch value of typed GuestInfo setting - * - * @v settings Settings block - * @v setting Setting to fetch - * @v type Setting type to attempt (or NULL for default) - * @v data Buffer to fill with setting data - * @v len Length of buffer - * @ret found Setting found in GuestInfo - * @ret len Length of setting data, or negative error - */ -static int guestinfo_fetch_type ( struct settings *settings, - struct setting *setting, - const struct setting_type *type, - void *data, size_t len, int *found ) { - const char *parent_name = settings->parent->name; - char command[ 24 /* "info-get guestinfo.ipxe." */ + - strlen ( parent_name ) + 1 /* "." */ + - strlen ( setting->name ) + 1 /* "." */ + - ( type ? strlen ( type->name ) : 0 ) + 1 /* NUL */ ]; - struct setting *predefined; - char *info; - int info_len; - int check_len; - int ret; - - /* Construct info-get command */ - snprintf ( command, sizeof ( command ), - "info-get guestinfo.ipxe.%s%s%s%s%s", - parent_name, ( parent_name[0] ? "." : "" ), setting->name, - ( type ? "." : "" ), ( type ? type->name : "" ) ); - - /* Check for existence and obtain length of GuestInfo value */ - info_len = guestrpc_command ( guestinfo_channel, command, NULL, 0 ); - if ( info_len < 0 ) { - ret = info_len; - goto err_get_info_len; - } - - /* Mark as found */ - *found = 1; - - /* Determine default type if necessary */ - if ( ! type ) { - predefined = find_setting ( setting->name ); - type = ( predefined ? predefined->type : &setting_type_string ); - } - assert ( type != NULL ); - - /* Allocate temporary block to hold GuestInfo value */ - info = zalloc ( info_len + 1 /* NUL */ ); - if ( ! info ) { - DBGC ( settings, "GuestInfo %p could not allocate %d bytes\n", - settings, info_len ); - ret = -ENOMEM; - goto err_alloc; - } - info[info_len] = '\0'; - - /* Fetch GuestInfo value */ - check_len = guestrpc_command ( guestinfo_channel, command, - info, info_len ); - if ( check_len < 0 ) { - ret = check_len; - goto err_get_info; - } - if ( check_len != info_len ) { - DBGC ( settings, "GuestInfo %p length mismatch (expected %d, " - "got %d)\n", settings, info_len, check_len ); - ret = -EIO; - goto err_get_info; - } - DBGC2 ( settings, "GuestInfo %p found %s = \"%s\"\n", - settings, &command[9] /* Skip "info-get " */, info ); - - /* Parse GuestInfo value according to type */ - ret = setting_parse ( type, info, data, len ); - if ( ret < 0 ) { - DBGC ( settings, "GuestInfo %p could not parse \"%s\" as %s: " - "%s\n", settings, info, type->name, strerror ( ret ) ); - goto err_parse; - } - - err_parse: - err_get_info: - free ( info ); - err_alloc: - err_get_info_len: - return ret; -} - -/** - * Fetch value of GuestInfo setting - * - * @v settings Settings block - * @v setting Setting to fetch - * @v data Buffer to fill with setting data - * @v len Length of buffer - * @ret len Length of setting data, or negative error - */ -static int guestinfo_fetch ( struct settings *settings, - struct setting *setting, - void *data, size_t len ) { - struct setting_type *type; - int found = 0; - int ret; - - /* Try default type first */ - ret = guestinfo_fetch_type ( settings, setting, NULL, - data, len, &found ); - if ( found ) - return ret; - - /* Otherwise, try all possible types */ - for_each_table_entry ( type, SETTING_TYPES ) { - ret = guestinfo_fetch_type ( settings, setting, type, - data, len, &found ); - if ( found ) - return ret; - } - - /* Not found */ - return -ENOENT; -} - -/** GuestInfo settings operations */ -static struct settings_operations guestinfo_settings_operations = { - .fetch = guestinfo_fetch, -}; - -/** GuestInfo settings */ -static struct settings guestinfo_settings = { - .refcnt = NULL, - .siblings = LIST_HEAD_INIT ( guestinfo_settings.siblings ), - .children = LIST_HEAD_INIT ( guestinfo_settings.children ), - .op = &guestinfo_settings_operations, -}; - -/** Initialise GuestInfo settings */ -static void guestinfo_init ( void ) { - int rc; - - /* Open GuestRPC channel */ - guestinfo_channel = guestrpc_open(); - if ( guestinfo_channel < 0 ) { - rc = guestinfo_channel; - DBG ( "GuestInfo could not open channel: %s\n", - strerror ( rc ) ); - return; - } - - /* Register root GuestInfo settings */ - if ( ( rc = register_settings ( &guestinfo_settings, NULL, - "vmware" ) ) != 0 ) { - DBG ( "GuestInfo could not register settings: %s\n", - strerror ( rc ) ); - return; - } -} - -/** GuestInfo settings initialiser */ -struct init_fn guestinfo_init_fn __init_fn ( INIT_NORMAL ) = { - .initialise = guestinfo_init, -}; - -/** - * Create per-netdevice GuestInfo settings - * - * @v netdev Network device - * @ret rc Return status code - */ -static int guestinfo_net_probe ( struct net_device *netdev ) { - struct settings *settings; - int rc; - - /* Do nothing unless we have a GuestInfo channel available */ - if ( guestinfo_channel < 0 ) - return 0; - - /* Allocate and initialise settings block */ - settings = zalloc ( sizeof ( *settings ) ); - if ( ! settings ) { - rc = -ENOMEM; - goto err_alloc; - } - settings_init ( settings, &guestinfo_settings_operations, NULL, NULL ); - - /* Register settings */ - if ( ( rc = register_settings ( settings, netdev_settings ( netdev ), - "vmware" ) ) != 0 ) { - DBGC ( settings, "GuestInfo %p could not register for %s: %s\n", - settings, netdev->name, strerror ( rc ) ); - goto err_register; - } - DBGC ( settings, "GuestInfo %p registered for %s\n", - settings, netdev->name ); - - return 0; - - err_register: - free ( settings ); - err_alloc: - return rc; -} - -/** - * Remove per-netdevice GuestInfo settings - * - * @v netdev Network device - */ -static void guestinfo_net_remove ( struct net_device *netdev ) { - struct settings *parent = netdev_settings ( netdev ); - struct settings *settings; - - list_for_each_entry ( settings, &parent->children, siblings ) { - if ( settings->op == &guestinfo_settings_operations ) { - DBGC ( settings, "GuestInfo %p unregistered for %s\n", - settings, netdev->name ); - unregister_settings ( settings ); - free ( settings ); - return; - } - } -} - -/** GuestInfo per-netdevice driver */ -struct net_driver guestinfo_net_driver __net_driver = { - .name = "GuestInfo", - .probe = guestinfo_net_probe, - .remove = guestinfo_net_remove, -}; diff --git a/qemu/roms/ipxe/src/arch/i386/interface/vmware/guestrpc.c b/qemu/roms/ipxe/src/arch/i386/interface/vmware/guestrpc.c deleted file mode 100644 index ef7ee8151..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/vmware/guestrpc.c +++ /dev/null @@ -1,332 +0,0 @@ -/* - * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** @file - * - * VMware GuestRPC mechanism - * - */ - -#include <stdint.h> -#include <string.h> -#include <errno.h> -#include <assert.h> -#include <ipxe/vmware.h> -#include <ipxe/guestrpc.h> - -/* Disambiguate the various error causes */ -#define EPROTO_OPEN __einfo_error ( EINFO_EPROTO_OPEN ) -#define EINFO_EPROTO_OPEN \ - __einfo_uniqify ( EINFO_EPROTO, 0x00, "GuestRPC open failed" ) -#define EPROTO_COMMAND_LEN __einfo_error ( EINFO_EPROTO_COMMAND_LEN ) -#define EINFO_EPROTO_COMMAND_LEN \ - __einfo_uniqify ( EINFO_EPROTO, 0x01, "GuestRPC command length failed" ) -#define EPROTO_COMMAND_DATA __einfo_error ( EINFO_EPROTO_COMMAND_DATA ) -#define EINFO_EPROTO_COMMAND_DATA \ - __einfo_uniqify ( EINFO_EPROTO, 0x02, "GuestRPC command data failed" ) -#define EPROTO_REPLY_LEN __einfo_error ( EINFO_EPROTO_REPLY_LEN ) -#define EINFO_EPROTO_REPLY_LEN \ - __einfo_uniqify ( EINFO_EPROTO, 0x03, "GuestRPC reply length failed" ) -#define EPROTO_REPLY_DATA __einfo_error ( EINFO_EPROTO_REPLY_DATA ) -#define EINFO_EPROTO_REPLY_DATA \ - __einfo_uniqify ( EINFO_EPROTO, 0x04, "GuestRPC reply data failed" ) -#define EPROTO_REPLY_FINISH __einfo_error ( EINFO_EPROTO_REPLY_FINISH ) -#define EINFO_EPROTO_REPLY_FINISH \ - __einfo_uniqify ( EINFO_EPROTO, 0x05, "GuestRPC reply finish failed" ) -#define EPROTO_CLOSE __einfo_error ( EINFO_EPROTO_CLOSE ) -#define EINFO_EPROTO_CLOSE \ - __einfo_uniqify ( EINFO_EPROTO, 0x06, "GuestRPC close failed" ) - -/** - * Open GuestRPC channel - * - * @ret channel Channel number, or negative error - */ -int guestrpc_open ( void ) { - uint16_t channel; - uint32_t discard_b; - uint32_t status; - - /* Issue GuestRPC command */ - status = vmware_cmd_guestrpc ( 0, GUESTRPC_OPEN, GUESTRPC_MAGIC, - &channel, &discard_b ); - if ( status != GUESTRPC_OPEN_SUCCESS ) { - DBGC ( GUESTRPC_MAGIC, "GuestRPC open failed: status %08x\n", - status ); - return -EPROTO_OPEN; - } - - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d opened\n", channel ); - return channel; -} - -/** - * Send GuestRPC command length - * - * @v channel Channel number - * @v len Command length - * @ret rc Return status code - */ -static int guestrpc_command_len ( int channel, size_t len ) { - uint16_t discard_d; - uint32_t discard_b; - uint32_t status; - - /* Issue GuestRPC command */ - status = vmware_cmd_guestrpc ( channel, GUESTRPC_COMMAND_LEN, len, - &discard_d, &discard_b ); - if ( status != GUESTRPC_COMMAND_LEN_SUCCESS ) { - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d send command " - "length %zd failed: status %08x\n", - channel, len, status ); - return -EPROTO_COMMAND_LEN; - } - - return 0; -} - -/** - * Send GuestRPC command data - * - * @v channel Channel number - * @v data Command data - * @ret rc Return status code - */ -static int guestrpc_command_data ( int channel, uint32_t data ) { - uint16_t discard_d; - uint32_t discard_b; - uint32_t status; - - /* Issue GuestRPC command */ - status = vmware_cmd_guestrpc ( channel, GUESTRPC_COMMAND_DATA, data, - &discard_d, &discard_b ); - if ( status != GUESTRPC_COMMAND_DATA_SUCCESS ) { - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d send command " - "data %08x failed: status %08x\n", - channel, data, status ); - return -EPROTO_COMMAND_DATA; - } - - return 0; -} - -/** - * Receive GuestRPC reply length - * - * @v channel Channel number - * @ret reply_id Reply ID - * @ret len Reply length, or negative error - */ -static int guestrpc_reply_len ( int channel, uint16_t *reply_id ) { - uint32_t len; - uint32_t status; - - /* Issue GuestRPC command */ - status = vmware_cmd_guestrpc ( channel, GUESTRPC_REPLY_LEN, 0, - reply_id, &len ); - if ( status != GUESTRPC_REPLY_LEN_SUCCESS ) { - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d receive reply " - "length failed: status %08x\n", channel, status ); - return -EPROTO_REPLY_LEN; - } - - return len; -} - -/** - * Receive GuestRPC reply data - * - * @v channel Channel number - * @v reply_id Reply ID - * @ret data Reply data - * @ret rc Return status code - */ -static int guestrpc_reply_data ( int channel, uint16_t reply_id, - uint32_t *data ) { - uint16_t discard_d; - uint32_t status; - - /* Issue GuestRPC command */ - status = vmware_cmd_guestrpc ( channel, GUESTRPC_REPLY_DATA, reply_id, - &discard_d, data ); - if ( status != GUESTRPC_REPLY_DATA_SUCCESS ) { - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d receive reply " - "%d data failed: status %08x\n", - channel, reply_id, status ); - return -EPROTO_REPLY_DATA; - } - - return 0; -} - -/** - * Finish receiving GuestRPC reply - * - * @v channel Channel number - * @v reply_id Reply ID - * @ret rc Return status code - */ -static int guestrpc_reply_finish ( int channel, uint16_t reply_id ) { - uint16_t discard_d; - uint32_t discard_b; - uint32_t status; - - /* Issue GuestRPC command */ - status = vmware_cmd_guestrpc ( channel, GUESTRPC_REPLY_FINISH, reply_id, - &discard_d, &discard_b ); - if ( status != GUESTRPC_REPLY_FINISH_SUCCESS ) { - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d finish reply %d " - "failed: status %08x\n", channel, reply_id, status ); - return -EPROTO_REPLY_FINISH; - } - - return 0; -} - -/** - * Close GuestRPC channel - * - * @v channel Channel number - */ -void guestrpc_close ( int channel ) { - uint16_t discard_d; - uint32_t discard_b; - uint32_t status; - - /* Issue GuestRPC command */ - status = vmware_cmd_guestrpc ( channel, GUESTRPC_CLOSE, 0, - &discard_d, &discard_b ); - if ( status != GUESTRPC_CLOSE_SUCCESS ) { - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d close failed: " - "status %08x\n", channel, status ); - return; - } - - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d closed\n", channel ); -} - -/** - * Issue GuestRPC command - * - * @v channel Channel number - * @v command Command - * @v reply Reply buffer - * @v reply_len Length of reply buffer - * @ret len Length of reply, or negative error - * - * The actual length of the reply will be returned even if the buffer - * was too small. - */ -int guestrpc_command ( int channel, const char *command, char *reply, - size_t reply_len ) { - const uint8_t *command_bytes = ( ( const void * ) command ); - uint8_t *reply_bytes = ( ( void * ) reply ); - size_t command_len = strlen ( command ); - int orig_reply_len = reply_len; - uint16_t status; - uint8_t *status_bytes = ( ( void * ) &status ); - size_t status_len = sizeof ( status ); - uint32_t data; - uint16_t reply_id; - int len; - int remaining; - unsigned int i; - int rc; - - DBGC2 ( GUESTRPC_MAGIC, "GuestRPC channel %d issuing command:\n", - channel ); - DBGC2_HDA ( GUESTRPC_MAGIC, 0, command, command_len ); - - /* Sanity check */ - assert ( ( reply != NULL ) || ( reply_len == 0 ) ); - - /* Send command length */ - if ( ( rc = guestrpc_command_len ( channel, command_len ) ) < 0 ) - return rc; - - /* Send command data */ - while ( command_len ) { - data = 0; - for ( i = sizeof ( data ) ; i ; i-- ) { - if ( command_len ) { - data = ( ( data & ~0xff ) | - *(command_bytes++) ); - command_len--; - } - data = ( ( data << 24 ) | ( data >> 8 ) ); - } - if ( ( rc = guestrpc_command_data ( channel, data ) ) < 0 ) - return rc; - } - - /* Receive reply length */ - if ( ( len = guestrpc_reply_len ( channel, &reply_id ) ) < 0 ) { - rc = len; - return rc; - } - - /* Receive reply */ - for ( remaining = len ; remaining > 0 ; remaining -= sizeof ( data ) ) { - if ( ( rc = guestrpc_reply_data ( channel, reply_id, - &data ) ) < 0 ) { - return rc; - } - for ( i = sizeof ( data ) ; i ; i-- ) { - if ( status_len ) { - *(status_bytes++) = ( data & 0xff ); - status_len--; - len--; - } else if ( reply_len ) { - *(reply_bytes++) = ( data & 0xff ); - reply_len--; - } - data = ( ( data << 24 ) | ( data >> 8 ) ); - } - } - - /* Finish receiving RPC reply */ - if ( ( rc = guestrpc_reply_finish ( channel, reply_id ) ) < 0 ) - return rc; - - DBGC2 ( GUESTRPC_MAGIC, "GuestRPC channel %d received reply (id %d, " - "length %d):\n", channel, reply_id, len ); - DBGC2_HDA ( GUESTRPC_MAGIC, 0, &status, sizeof ( status ) ); - DBGC2_HDA ( GUESTRPC_MAGIC, sizeof ( status ), reply, - ( ( len < orig_reply_len ) ? len : orig_reply_len ) ); - - /* Check reply status */ - if ( status != GUESTRPC_SUCCESS ) { - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d command failed " - "(status %04x, reply id %d, reply length %d):\n", - channel, status, reply_id, len ); - DBGC_HDA ( GUESTRPC_MAGIC, 0, command, command_len ); - DBGC_HDA ( GUESTRPC_MAGIC, 0, &status, sizeof ( status ) ); - DBGC_HDA ( GUESTRPC_MAGIC, sizeof ( status ), reply, - ( ( len < orig_reply_len ) ? len : orig_reply_len )); - return -EIO; - } - - return len; -} diff --git a/qemu/roms/ipxe/src/arch/i386/interface/vmware/vmconsole.c b/qemu/roms/ipxe/src/arch/i386/interface/vmware/vmconsole.c deleted file mode 100644 index f7df4f75b..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/vmware/vmconsole.c +++ /dev/null @@ -1,138 +0,0 @@ -/* - * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** @file - * - * VMware logfile console - * - */ - -#include <string.h> -#include <ipxe/console.h> -#include <ipxe/lineconsole.h> -#include <ipxe/init.h> -#include <ipxe/guestrpc.h> -#include <config/console.h> - -/** VMware logfile console buffer size */ -#define VMCONSOLE_BUFSIZE 128 - -/* Set default console usage if applicable */ -#if ! ( defined ( CONSOLE_VMWARE ) && CONSOLE_EXPLICIT ( CONSOLE_VMWARE ) ) -#undef CONSOLE_VMWARE -#define CONSOLE_VMWARE ( CONSOLE_USAGE_ALL & ~CONSOLE_USAGE_TUI ) -#endif - -/** VMware logfile console GuestRPC channel */ -static int vmconsole_channel; - -/** VMware logfile console line buffer */ -static struct { - char prefix[4]; - char message[VMCONSOLE_BUFSIZE]; -} vmconsole_buffer = { - .prefix = "log ", -}; - -/** VMware logfile console ANSI escape sequence handlers */ -static struct ansiesc_handler vmconsole_handlers[] = { - { 0, NULL } -}; - -/** VMware logfile line console */ -static struct line_console vmconsole_line = { - .buffer = vmconsole_buffer.message, - .len = sizeof ( vmconsole_buffer.message ), - .ctx = { - .handlers = vmconsole_handlers, - }, -}; - -/** VMware logfile console recursion marker */ -static int vmconsole_entered; - -/** - * Print a character to VMware logfile console - * - * @v character Character to be printed - */ -static void vmconsole_putchar ( int character ) { - int rc; - - /* Ignore if we are already mid-logging */ - if ( vmconsole_entered ) - return; - - /* Fill line buffer */ - if ( line_putchar ( &vmconsole_line, character ) == 0 ) - return; - - /* Guard against re-entry */ - vmconsole_entered = 1; - - /* Send log message */ - if ( ( rc = guestrpc_command ( vmconsole_channel, - vmconsole_buffer.prefix, NULL, 0 ) ) <0){ - DBG ( "VMware console could not send log message: %s\n", - strerror ( rc ) ); - } - - /* Clear re-entry flag */ - vmconsole_entered = 0; -} - -/** VMware logfile console driver */ -struct console_driver vmconsole __console_driver = { - .putchar = vmconsole_putchar, - .disabled = CONSOLE_DISABLED, - .usage = CONSOLE_VMWARE, -}; - -/** - * Initialise VMware logfile console - * - */ -static void vmconsole_init ( void ) { - int rc; - - /* Attempt to open console */ - vmconsole_channel = guestrpc_open(); - if ( vmconsole_channel < 0 ) { - rc = vmconsole_channel; - DBG ( "VMware console could not be initialised: %s\n", - strerror ( rc ) ); - return; - } - - /* Mark console as available */ - vmconsole.disabled = 0; -} - -/** - * VMware logfile console initialisation function - */ -struct init_fn vmconsole_init_fn __init_fn ( INIT_CONSOLE ) = { - .initialise = vmconsole_init, -}; diff --git a/qemu/roms/ipxe/src/arch/i386/interface/vmware/vmware.c b/qemu/roms/ipxe/src/arch/i386/interface/vmware/vmware.c deleted file mode 100644 index a415465fb..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/vmware/vmware.c +++ /dev/null @@ -1,62 +0,0 @@ -/* - * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** @file - * - * VMware backdoor mechanism - * - * Based on the unofficial documentation at - * - * http://sites.google.com/site/chitchatvmback/backdoor - * - */ - -#include <stdint.h> -#include <errno.h> -#include <ipxe/vmware.h> - -/** - * Detect VMware presence - * - * @ret rc Return status code - */ -int vmware_present ( void ) { - uint32_t version; - uint32_t magic; - uint32_t product_type; - - /* Perform backdoor call */ - vmware_cmd_get_version ( &version, &magic, &product_type ); - - /* Check for VMware presence */ - if ( magic != VMW_MAGIC ) { - DBGC ( VMW_MAGIC, "VMware not present\n" ); - return -ENOENT; - } - - DBGC ( VMW_MAGIC, "VMware product type %04x version %08x detected\n", - product_type, version ); - return 0; -} |