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authorRajithaY <rajithax.yerrumsetty@intel.com>2017-04-25 03:31:15 -0700
committerRajitha Yerrumchetty <rajithax.yerrumsetty@intel.com>2017-05-22 06:48:08 +0000
commitbb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch)
treeca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/roms/seabios/src/optionroms.c
parenta14b48d18a9ed03ec191cf16b162206998a895ce (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/seabios/src/optionroms.c')
-rw-r--r--qemu/roms/seabios/src/optionroms.c472
1 files changed, 0 insertions, 472 deletions
diff --git a/qemu/roms/seabios/src/optionroms.c b/qemu/roms/seabios/src/optionroms.c
deleted file mode 100644
index c81eff2d2..000000000
--- a/qemu/roms/seabios/src/optionroms.c
+++ /dev/null
@@ -1,472 +0,0 @@
-// Option rom scanning code.
-//
-// Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net>
-// Copyright (C) 2002 MandrakeSoft S.A.
-//
-// This file may be distributed under the terms of the GNU LGPLv3 license.
-
-#include "bregs.h" // struct bregs
-#include "config.h" // CONFIG_*
-#include "farptr.h" // FLATPTR_TO_SEG
-#include "hw/pci.h" // foreachpci
-#include "hw/pci_ids.h" // PCI_CLASS_DISPLAY_VGA
-#include "hw/pci_regs.h" // PCI_ROM_ADDRESS
-#include "malloc.h" // rom_confirm
-#include "output.h" // dprintf
-#include "romfile.h" // romfile_loadint
-#include "stacks.h" // farcall16big
-#include "std/optionrom.h" // struct rom_header
-#include "std/pnpbios.h" // PNP_SIGNATURE
-#include "string.h" // memset
-#include "util.h" // get_pnp_offset
-#include "tcgbios.h" // tpm_*
-
-static int EnforceChecksum, S3ResumeVga, RunPCIroms;
-
-
-/****************************************************************
- * Helper functions
- ****************************************************************/
-
-// Execute a given option rom.
-static void
-__callrom(struct rom_header *rom, u16 offset, u16 bdf)
-{
- u16 seg = FLATPTR_TO_SEG(rom);
- dprintf(1, "Running option rom at %04x:%04x\n", seg, offset);
-
- struct bregs br;
- memset(&br, 0, sizeof(br));
- br.flags = F_IF;
- br.ax = bdf;
- br.bx = 0xffff;
- br.dx = 0xffff;
- br.es = SEG_BIOS;
- br.di = get_pnp_offset();
- br.code = SEGOFF(seg, offset);
- start_preempt();
- farcall16big(&br);
- finish_preempt();
-}
-
-// Execute a given option rom at the standard entry vector.
-void
-callrom(struct rom_header *rom, u16 bdf)
-{
- __callrom(rom, OPTION_ROM_INITVECTOR, bdf);
-}
-
-// Execute a BCV option rom registered via add_bcv().
-void
-call_bcv(u16 seg, u16 ip)
-{
- __callrom(MAKE_FLATPTR(seg, 0), ip, 0);
-}
-
-// Verify that an option rom looks valid
-static int
-is_valid_rom(struct rom_header *rom)
-{
- dprintf(6, "Checking rom %p (sig %x size %d)\n"
- , rom, rom->signature, rom->size);
- if (rom->signature != OPTION_ROM_SIGNATURE)
- return 0;
- if (! rom->size)
- return 0;
- u32 len = rom->size * 512;
- u8 sum = checksum(rom, len);
- if (sum != 0) {
- dprintf(1, "Found option rom with bad checksum: loc=%p len=%d sum=%x\n"
- , rom, len, sum);
- if (EnforceChecksum)
- return 0;
- }
- return 1;
-}
-
-// Check if a valid option rom has a pnp struct; return it if so.
-static struct pnp_data *
-get_pnp_rom(struct rom_header *rom)
-{
- struct pnp_data *pnp = (void*)((u8*)rom + rom->pnpoffset);
- if (pnp->signature != PNP_SIGNATURE)
- return NULL;
- return pnp;
-}
-
-// Check for multiple pnp option rom headers.
-static struct pnp_data *
-get_pnp_next(struct rom_header *rom, struct pnp_data *pnp)
-{
- if (! pnp->nextoffset)
- return NULL;
- pnp = (void*)((u8*)rom + pnp->nextoffset);
- if (pnp->signature != PNP_SIGNATURE)
- return NULL;
- return pnp;
-}
-
-// Check if a valid option rom has a pci struct; return it if so.
-static struct pci_data *
-get_pci_rom(struct rom_header *rom)
-{
- struct pci_data *pd = (void*)((u32)rom + rom->pcioffset);
- if (pd->signature != PCI_ROM_SIGNATURE)
- return NULL;
- if (rom->pcioffset & 3)
- dprintf(1, "WARNING! Found unaligned PCI rom (vd=%04x:%04x)\n"
- , pd->vendor, pd->device);
- return pd;
-}
-
-// Run rom init code and note rom size.
-static int
-init_optionrom(struct rom_header *rom, u16 bdf, int isvga)
-{
- if (! is_valid_rom(rom))
- return -1;
- struct rom_header *newrom = rom_reserve(rom->size * 512);
- if (!newrom) {
- warn_noalloc();
- return -1;
- }
- if (newrom != rom)
- memmove(newrom, rom, rom->size * 512);
-
- tpm_option_rom(newrom, rom->size * 512);
-
- if (isvga || get_pnp_rom(newrom))
- // Only init vga and PnP roms here.
- callrom(newrom, bdf);
-
- return rom_confirm(newrom->size * 512);
-}
-
-#define RS_PCIROM (1LL<<33)
-
-static void
-setRomSource(u64 *sources, struct rom_header *rom, u64 source)
-{
- if (sources)
- sources[((u32)rom - BUILD_ROM_START) / OPTION_ROM_ALIGN] = source;
-}
-
-static int
-getRomPriority(u64 *sources, struct rom_header *rom, int instance)
-{
- u64 source = sources[((u32)rom - BUILD_ROM_START) / OPTION_ROM_ALIGN];
- if (!source)
- return -1;
- if (source & RS_PCIROM)
- return bootprio_find_pci_rom((void*)(u32)source, instance);
- struct romfile_s *file = (void*)(u32)source;
- return bootprio_find_named_rom(file->name, instance);
-}
-
-
-/****************************************************************
- * Roms in CBFS
- ****************************************************************/
-
-static struct rom_header *
-deploy_romfile(struct romfile_s *file)
-{
- u32 size = file->size;
- struct rom_header *rom = rom_reserve(size);
- if (!rom) {
- warn_noalloc();
- return NULL;
- }
- int ret = file->copy(file, rom, size);
- if (ret <= 0)
- return NULL;
- return rom;
-}
-
-// Run all roms in a given CBFS directory.
-static void
-run_file_roms(const char *prefix, int isvga, u64 *sources)
-{
- struct romfile_s *file = NULL;
- for (;;) {
- file = romfile_findprefix(prefix, file);
- if (!file)
- break;
- struct rom_header *rom = deploy_romfile(file);
- if (rom) {
- setRomSource(sources, rom, (u32)file);
- init_optionrom(rom, 0, isvga);
- }
- }
-}
-
-
-/****************************************************************
- * PCI roms
- ****************************************************************/
-
-// Verify device is a vga device with legacy address decoding enabled.
-int
-is_pci_vga(struct pci_device *pci)
-{
- if (pci->class != PCI_CLASS_DISPLAY_VGA)
- return 0;
- u16 cmd = pci_config_readw(pci->bdf, PCI_COMMAND);
- if (!(cmd & PCI_COMMAND_IO && cmd & PCI_COMMAND_MEMORY))
- return 0;
- while (pci->parent) {
- pci = pci->parent;
- u32 ctrl = pci_config_readb(pci->bdf, PCI_BRIDGE_CONTROL);
- if (!(ctrl & PCI_BRIDGE_CTL_VGA))
- return 0;
- }
- return 1;
-}
-
-// Copy a rom to its permanent location below 1MiB
-static struct rom_header *
-copy_rom(struct rom_header *rom)
-{
- u32 romsize = rom->size * 512;
- struct rom_header *newrom = rom_reserve(romsize);
- if (!newrom) {
- warn_noalloc();
- return NULL;
- }
- dprintf(4, "Copying option rom (size %d) from %p to %p\n"
- , romsize, rom, newrom);
- iomemcpy(newrom, rom, romsize);
- return newrom;
-}
-
-// Map the option rom of a given PCI device.
-static struct rom_header *
-map_pcirom(struct pci_device *pci)
-{
- u16 bdf = pci->bdf;
- dprintf(6, "Attempting to map option rom on dev %02x:%02x.%x\n"
- , pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf), pci_bdf_to_fn(bdf));
-
- if ((pci->header_type & 0x7f) != PCI_HEADER_TYPE_NORMAL) {
- dprintf(6, "Skipping non-normal pci device (type=%x)\n"
- , pci->header_type);
- return NULL;
- }
-
- u32 orig = pci_config_readl(bdf, PCI_ROM_ADDRESS);
- pci_config_writel(bdf, PCI_ROM_ADDRESS, ~PCI_ROM_ADDRESS_ENABLE);
- u32 sz = pci_config_readl(bdf, PCI_ROM_ADDRESS);
-
- dprintf(6, "Option rom sizing returned %x %x\n", orig, sz);
- orig &= ~PCI_ROM_ADDRESS_ENABLE;
- if (!sz || sz == 0xffffffff)
- goto fail;
-
- if (orig == sz || (u32)(orig + 4*1024*1024) < 20*1024*1024) {
- // Don't try to map to a pci addresses at its max, in the last
- // 4MiB of ram, or the first 16MiB of ram.
- dprintf(6, "Preset rom address doesn't look valid\n");
- goto fail;
- }
-
- // Looks like a rom - enable it.
- pci_config_writel(bdf, PCI_ROM_ADDRESS, orig | PCI_ROM_ADDRESS_ENABLE);
-
- struct rom_header *rom = (void*)orig;
- for (;;) {
- dprintf(5, "Inspecting possible rom at %p (vd=%04x:%04x"
- " bdf=%02x:%02x.%x)\n"
- , rom, pci->vendor, pci->device
- , pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf), pci_bdf_to_fn(bdf));
- if (rom->signature != OPTION_ROM_SIGNATURE) {
- dprintf(6, "No option rom signature (got %x)\n", rom->signature);
- goto fail;
- }
- struct pci_data *pd = get_pci_rom(rom);
- if (! pd) {
- dprintf(6, "No valid pci signature found\n");
- goto fail;
- }
-
- if (pd->vendor == pci->vendor && pd->device == pci->device
- && pd->type == PCIROM_CODETYPE_X86)
- // A match
- break;
- dprintf(6, "Didn't match dev/ven (got %04x:%04x) or type (got %d)\n"
- , pd->vendor, pd->device, pd->type);
- if (pd->indicator & 0x80) {
- dprintf(6, "No more images left\n");
- goto fail;
- }
- rom = (void*)((u32)rom + pd->ilen * 512);
- }
-
- rom = copy_rom(rom);
- pci_config_writel(bdf, PCI_ROM_ADDRESS, orig);
- return rom;
-fail:
- // Not valid - restore original and exit.
- pci_config_writel(bdf, PCI_ROM_ADDRESS, orig);
- return NULL;
-}
-
-// Attempt to map and initialize the option rom on a given PCI device.
-static void
-init_pcirom(struct pci_device *pci, int isvga, u64 *sources)
-{
- u16 bdf = pci->bdf;
- dprintf(4, "Attempting to init PCI bdf %02x:%02x.%x (vd %04x:%04x)\n"
- , pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf), pci_bdf_to_fn(bdf)
- , pci->vendor, pci->device);
-
- char fname[17];
- snprintf(fname, sizeof(fname), "pci%04x,%04x.rom"
- , pci->vendor, pci->device);
- struct romfile_s *file = romfile_find(fname);
- struct rom_header *rom = NULL;
- if (file)
- rom = deploy_romfile(file);
- else if (RunPCIroms > 1 || (RunPCIroms == 1 && isvga))
- rom = map_pcirom(pci);
- if (! rom)
- // No ROM present.
- return;
- setRomSource(sources, rom, RS_PCIROM | (u32)pci);
- init_optionrom(rom, bdf, isvga);
-}
-
-
-/****************************************************************
- * Non-VGA option rom init
- ****************************************************************/
-
-void
-optionrom_setup(void)
-{
- if (! CONFIG_OPTIONROMS)
- return;
-
- dprintf(1, "Scan for option roms\n");
- u64 sources[(BUILD_BIOS_ADDR - BUILD_ROM_START) / OPTION_ROM_ALIGN];
- memset(sources, 0, sizeof(sources));
- u32 post_vga = rom_get_last();
-
- if (CONFIG_OPTIONROMS_DEPLOYED) {
- // Option roms are already deployed on the system.
- u32 pos = post_vga;
- while (pos < rom_get_max()) {
- int ret = init_optionrom((void*)pos, 0, 0);
- if (ret)
- pos += OPTION_ROM_ALIGN;
- else
- pos = rom_get_last();
- }
- } else {
- // Find and deploy PCI roms.
- struct pci_device *pci;
- foreachpci(pci) {
- if (pci->class == PCI_CLASS_DISPLAY_VGA || pci->have_driver)
- continue;
- init_pcirom(pci, 0, sources);
- }
-
- // Find and deploy CBFS roms not associated with a device.
- run_file_roms("genroms/", 0, sources);
- }
- rom_reserve(0);
-
- // All option roms found and deployed - now build BEV/BCV vectors.
-
- u32 pos = post_vga;
- while (pos < rom_get_last()) {
- struct rom_header *rom = (void*)pos;
- if (! is_valid_rom(rom)) {
- pos += OPTION_ROM_ALIGN;
- continue;
- }
- pos += ALIGN(rom->size * 512, OPTION_ROM_ALIGN);
- struct pnp_data *pnp = get_pnp_rom(rom);
- if (! pnp) {
- // Legacy rom.
- boot_add_bcv(FLATPTR_TO_SEG(rom), OPTION_ROM_INITVECTOR, 0
- , getRomPriority(sources, rom, 0));
- continue;
- }
- // PnP rom - check for BEV and BCV boot capabilities.
- int instance = 0;
- while (pnp) {
- if (pnp->bev)
- boot_add_bev(FLATPTR_TO_SEG(rom), pnp->bev, pnp->productname
- , getRomPriority(sources, rom, instance++));
- else if (pnp->bcv)
- boot_add_bcv(FLATPTR_TO_SEG(rom), pnp->bcv, pnp->productname
- , getRomPriority(sources, rom, instance++));
- else
- break;
- pnp = get_pnp_next(rom, pnp);
- }
- }
-}
-
-
-/****************************************************************
- * VGA init
- ****************************************************************/
-
-int ScreenAndDebug;
-struct rom_header *VgaROM;
-
-// Call into vga code to turn on console.
-void
-vgarom_setup(void)
-{
- if (! CONFIG_OPTIONROMS)
- return;
-
- dprintf(1, "Scan for VGA option rom\n");
-
- // Load some config settings that impact VGA.
- EnforceChecksum = romfile_loadint("etc/optionroms-checksum", 1);
- S3ResumeVga = romfile_loadint("etc/s3-resume-vga-init", CONFIG_QEMU);
- RunPCIroms = romfile_loadint("etc/pci-optionrom-exec", 2);
- ScreenAndDebug = romfile_loadint("etc/screen-and-debug", 1);
-
- if (CONFIG_OPTIONROMS_DEPLOYED) {
- // Option roms are already deployed on the system.
- init_optionrom((void*)BUILD_ROM_START, 0, 1);
- } else {
- // Clear option rom memory
- memset((void*)BUILD_ROM_START, 0, rom_get_max() - BUILD_ROM_START);
-
- // Find and deploy PCI VGA rom.
- struct pci_device *pci;
- foreachpci(pci) {
- if (!is_pci_vga(pci))
- continue;
- vgahook_setup(pci);
- init_pcirom(pci, 1, NULL);
- break;
- }
-
- // Find and deploy CBFS vga-style roms not associated with a device.
- run_file_roms("vgaroms/", 1, NULL);
- }
- rom_reserve(0);
-
- if (rom_get_last() == BUILD_ROM_START)
- // No VGA rom found
- return;
-
- VgaROM = (void*)BUILD_ROM_START;
- enable_vga_console();
-}
-
-void
-s3_resume_vga(void)
-{
- if (!S3ResumeVga)
- return;
- if (!VgaROM || ! is_valid_rom(VgaROM))
- return;
- callrom(VgaROM, 0);
-}