diff options
author | RajithaY <rajithax.yerrumsetty@intel.com> | 2017-04-25 03:31:15 -0700 |
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committer | Rajitha Yerrumchetty <rajithax.yerrumsetty@intel.com> | 2017-05-22 06:48:08 +0000 |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/hw/i386/multiboot.c | |
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/hw/i386/multiboot.c')
-rw-r--r-- | qemu/hw/i386/multiboot.c | 375 |
1 files changed, 0 insertions, 375 deletions
diff --git a/qemu/hw/i386/multiboot.c b/qemu/hw/i386/multiboot.c deleted file mode 100644 index 387caa67d..000000000 --- a/qemu/hw/i386/multiboot.c +++ /dev/null @@ -1,375 +0,0 @@ -/* - * QEMU PC System Emulator - * - * Copyright (c) 2003-2004 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -#include "qemu/osdep.h" -#include "qemu-common.h" -#include "cpu.h" -#include "hw/hw.h" -#include "hw/nvram/fw_cfg.h" -#include "multiboot.h" -#include "hw/loader.h" -#include "elf.h" -#include "sysemu/sysemu.h" - -/* Show multiboot debug output */ -//#define DEBUG_MULTIBOOT - -#ifdef DEBUG_MULTIBOOT -#define mb_debug(a...) fprintf(stderr, ## a) -#else -#define mb_debug(a...) -#endif - -#define MULTIBOOT_STRUCT_ADDR 0x9000 - -#if MULTIBOOT_STRUCT_ADDR > 0xf0000 -#error multiboot struct needs to fit in 16 bit real mode -#endif - -enum { - /* Multiboot info */ - MBI_FLAGS = 0, - MBI_MEM_LOWER = 4, - MBI_MEM_UPPER = 8, - MBI_BOOT_DEVICE = 12, - MBI_CMDLINE = 16, - MBI_MODS_COUNT = 20, - MBI_MODS_ADDR = 24, - MBI_MMAP_ADDR = 48, - MBI_BOOTLOADER = 64, - - MBI_SIZE = 88, - - /* Multiboot modules */ - MB_MOD_START = 0, - MB_MOD_END = 4, - MB_MOD_CMDLINE = 8, - - MB_MOD_SIZE = 16, - - /* Region offsets */ - ADDR_E820_MAP = MULTIBOOT_STRUCT_ADDR + 0, - ADDR_MBI = ADDR_E820_MAP + 0x500, - - /* Multiboot flags */ - MULTIBOOT_FLAGS_MEMORY = 1 << 0, - MULTIBOOT_FLAGS_BOOT_DEVICE = 1 << 1, - MULTIBOOT_FLAGS_CMDLINE = 1 << 2, - MULTIBOOT_FLAGS_MODULES = 1 << 3, - MULTIBOOT_FLAGS_MMAP = 1 << 6, - MULTIBOOT_FLAGS_BOOTLOADER = 1 << 9, -}; - -typedef struct { - /* buffer holding kernel, cmdlines and mb_infos */ - void *mb_buf; - /* address in target */ - hwaddr mb_buf_phys; - /* size of mb_buf in bytes */ - unsigned mb_buf_size; - /* offset of mb-info's in bytes */ - hwaddr offset_mbinfo; - /* offset in buffer for cmdlines in bytes */ - hwaddr offset_cmdlines; - /* offset in buffer for bootloader name in bytes */ - hwaddr offset_bootloader; - /* offset of modules in bytes */ - hwaddr offset_mods; - /* available slots for mb modules infos */ - int mb_mods_avail; - /* currently used slots of mb modules */ - int mb_mods_count; -} MultibootState; - -const char *bootloader_name = "qemu"; - -static uint32_t mb_add_cmdline(MultibootState *s, const char *cmdline) -{ - hwaddr p = s->offset_cmdlines; - char *b = (char *)s->mb_buf + p; - - get_opt_value(b, strlen(cmdline) + 1, cmdline); - s->offset_cmdlines += strlen(b) + 1; - return s->mb_buf_phys + p; -} - -static uint32_t mb_add_bootloader(MultibootState *s, const char *bootloader) -{ - hwaddr p = s->offset_bootloader; - char *b = (char *)s->mb_buf + p; - - memcpy(b, bootloader, strlen(bootloader) + 1); - s->offset_bootloader += strlen(b) + 1; - return s->mb_buf_phys + p; -} - -static void mb_add_mod(MultibootState *s, - hwaddr start, hwaddr end, - hwaddr cmdline_phys) -{ - char *p; - assert(s->mb_mods_count < s->mb_mods_avail); - - p = (char *)s->mb_buf + s->offset_mbinfo + MB_MOD_SIZE * s->mb_mods_count; - - stl_p(p + MB_MOD_START, start); - stl_p(p + MB_MOD_END, end); - stl_p(p + MB_MOD_CMDLINE, cmdline_phys); - - mb_debug("mod%02d: "TARGET_FMT_plx" - "TARGET_FMT_plx"\n", - s->mb_mods_count, start, end); - - s->mb_mods_count++; -} - -int load_multiboot(FWCfgState *fw_cfg, - FILE *f, - const char *kernel_filename, - const char *initrd_filename, - const char *kernel_cmdline, - int kernel_file_size, - uint8_t *header) -{ - int i, is_multiboot = 0; - uint32_t flags = 0; - uint32_t mh_entry_addr; - uint32_t mh_load_addr; - uint32_t mb_kernel_size; - MultibootState mbs; - uint8_t bootinfo[MBI_SIZE]; - uint8_t *mb_bootinfo_data; - uint32_t cmdline_len; - - /* Ok, let's see if it is a multiboot image. - The header is 12x32bit long, so the latest entry may be 8192 - 48. */ - for (i = 0; i < (8192 - 48); i += 4) { - if (ldl_p(header+i) == 0x1BADB002) { - uint32_t checksum = ldl_p(header+i+8); - flags = ldl_p(header+i+4); - checksum += flags; - checksum += (uint32_t)0x1BADB002; - if (!checksum) { - is_multiboot = 1; - break; - } - } - } - - if (!is_multiboot) - return 0; /* no multiboot */ - - mb_debug("qemu: I believe we found a multiboot image!\n"); - memset(bootinfo, 0, sizeof(bootinfo)); - memset(&mbs, 0, sizeof(mbs)); - - if (flags & 0x00000004) { /* MULTIBOOT_HEADER_HAS_VBE */ - fprintf(stderr, "qemu: multiboot knows VBE. we don't.\n"); - } - if (!(flags & 0x00010000)) { /* MULTIBOOT_HEADER_HAS_ADDR */ - uint64_t elf_entry; - uint64_t elf_low, elf_high; - int kernel_size; - fclose(f); - - if (((struct elf64_hdr*)header)->e_machine == EM_X86_64) { - fprintf(stderr, "Cannot load x86-64 image, give a 32bit one.\n"); - exit(1); - } - - kernel_size = load_elf(kernel_filename, NULL, NULL, &elf_entry, - &elf_low, &elf_high, 0, I386_ELF_MACHINE, - 0, 0); - if (kernel_size < 0) { - fprintf(stderr, "Error while loading elf kernel\n"); - exit(1); - } - mh_load_addr = elf_low; - mb_kernel_size = elf_high - elf_low; - mh_entry_addr = elf_entry; - - mbs.mb_buf = g_malloc(mb_kernel_size); - if (rom_copy(mbs.mb_buf, mh_load_addr, mb_kernel_size) != mb_kernel_size) { - fprintf(stderr, "Error while fetching elf kernel from rom\n"); - exit(1); - } - - mb_debug("qemu: loading multiboot-elf kernel (%#x bytes) with entry %#zx\n", - mb_kernel_size, (size_t)mh_entry_addr); - } else { - /* Valid if mh_flags sets MULTIBOOT_HEADER_HAS_ADDR. */ - uint32_t mh_header_addr = ldl_p(header+i+12); - uint32_t mh_load_end_addr = ldl_p(header+i+20); - uint32_t mh_bss_end_addr = ldl_p(header+i+24); - mh_load_addr = ldl_p(header+i+16); - uint32_t mb_kernel_text_offset = i - (mh_header_addr - mh_load_addr); - uint32_t mb_load_size = 0; - mh_entry_addr = ldl_p(header+i+28); - - if (mh_load_end_addr) { - mb_kernel_size = mh_bss_end_addr - mh_load_addr; - mb_load_size = mh_load_end_addr - mh_load_addr; - } else { - mb_kernel_size = kernel_file_size - mb_kernel_text_offset; - mb_load_size = mb_kernel_size; - } - - /* Valid if mh_flags sets MULTIBOOT_HEADER_HAS_VBE. - uint32_t mh_mode_type = ldl_p(header+i+32); - uint32_t mh_width = ldl_p(header+i+36); - uint32_t mh_height = ldl_p(header+i+40); - uint32_t mh_depth = ldl_p(header+i+44); */ - - mb_debug("multiboot: mh_header_addr = %#x\n", mh_header_addr); - mb_debug("multiboot: mh_load_addr = %#x\n", mh_load_addr); - mb_debug("multiboot: mh_load_end_addr = %#x\n", mh_load_end_addr); - mb_debug("multiboot: mh_bss_end_addr = %#x\n", mh_bss_end_addr); - mb_debug("qemu: loading multiboot kernel (%#x bytes) at %#x\n", - mb_load_size, mh_load_addr); - - mbs.mb_buf = g_malloc(mb_kernel_size); - fseek(f, mb_kernel_text_offset, SEEK_SET); - if (fread(mbs.mb_buf, 1, mb_load_size, f) != mb_load_size) { - fprintf(stderr, "fread() failed\n"); - exit(1); - } - memset(mbs.mb_buf + mb_load_size, 0, mb_kernel_size - mb_load_size); - fclose(f); - } - - mbs.mb_buf_phys = mh_load_addr; - - mbs.mb_buf_size = TARGET_PAGE_ALIGN(mb_kernel_size); - mbs.offset_mbinfo = mbs.mb_buf_size; - - /* Calculate space for cmdlines, bootloader name, and mb_mods */ - cmdline_len = strlen(kernel_filename) + 1; - cmdline_len += strlen(kernel_cmdline) + 1; - if (initrd_filename) { - const char *r = initrd_filename; - cmdline_len += strlen(r) + 1; - mbs.mb_mods_avail = 1; - while (*(r = get_opt_value(NULL, 0, r))) { - mbs.mb_mods_avail++; - r++; - } - } - - mbs.mb_buf_size += cmdline_len; - mbs.mb_buf_size += MB_MOD_SIZE * mbs.mb_mods_avail; - mbs.mb_buf_size += strlen(bootloader_name) + 1; - - mbs.mb_buf_size = TARGET_PAGE_ALIGN(mbs.mb_buf_size); - - /* enlarge mb_buf to hold cmdlines, bootloader, mb-info structs */ - mbs.mb_buf = g_realloc(mbs.mb_buf, mbs.mb_buf_size); - mbs.offset_cmdlines = mbs.offset_mbinfo + mbs.mb_mods_avail * MB_MOD_SIZE; - mbs.offset_bootloader = mbs.offset_cmdlines + cmdline_len; - - if (initrd_filename) { - char *next_initrd, not_last; - - mbs.offset_mods = mbs.mb_buf_size; - - do { - char *next_space; - int mb_mod_length; - uint32_t offs = mbs.mb_buf_size; - - next_initrd = (char *)get_opt_value(NULL, 0, initrd_filename); - not_last = *next_initrd; - *next_initrd = '\0'; - /* if a space comes after the module filename, treat everything - after that as parameters */ - hwaddr c = mb_add_cmdline(&mbs, initrd_filename); - if ((next_space = strchr(initrd_filename, ' '))) - *next_space = '\0'; - mb_debug("multiboot loading module: %s\n", initrd_filename); - mb_mod_length = get_image_size(initrd_filename); - if (mb_mod_length < 0) { - fprintf(stderr, "Failed to open file '%s'\n", initrd_filename); - exit(1); - } - - mbs.mb_buf_size = TARGET_PAGE_ALIGN(mb_mod_length + mbs.mb_buf_size); - mbs.mb_buf = g_realloc(mbs.mb_buf, mbs.mb_buf_size); - - load_image(initrd_filename, (unsigned char *)mbs.mb_buf + offs); - mb_add_mod(&mbs, mbs.mb_buf_phys + offs, - mbs.mb_buf_phys + offs + mb_mod_length, c); - - mb_debug("mod_start: %p\nmod_end: %p\n cmdline: "TARGET_FMT_plx"\n", - (char *)mbs.mb_buf + offs, - (char *)mbs.mb_buf + offs + mb_mod_length, c); - initrd_filename = next_initrd+1; - } while (not_last); - } - - /* Commandline support */ - char kcmdline[strlen(kernel_filename) + strlen(kernel_cmdline) + 2]; - snprintf(kcmdline, sizeof(kcmdline), "%s %s", - kernel_filename, kernel_cmdline); - stl_p(bootinfo + MBI_CMDLINE, mb_add_cmdline(&mbs, kcmdline)); - - stl_p(bootinfo + MBI_BOOTLOADER, mb_add_bootloader(&mbs, bootloader_name)); - - stl_p(bootinfo + MBI_MODS_ADDR, mbs.mb_buf_phys + mbs.offset_mbinfo); - stl_p(bootinfo + MBI_MODS_COUNT, mbs.mb_mods_count); /* mods_count */ - - /* the kernel is where we want it to be now */ - stl_p(bootinfo + MBI_FLAGS, MULTIBOOT_FLAGS_MEMORY - | MULTIBOOT_FLAGS_BOOT_DEVICE - | MULTIBOOT_FLAGS_CMDLINE - | MULTIBOOT_FLAGS_MODULES - | MULTIBOOT_FLAGS_MMAP - | MULTIBOOT_FLAGS_BOOTLOADER); - stl_p(bootinfo + MBI_BOOT_DEVICE, 0x8000ffff); /* XXX: use the -boot switch? */ - stl_p(bootinfo + MBI_MMAP_ADDR, ADDR_E820_MAP); - - mb_debug("multiboot: mh_entry_addr = %#x\n", mh_entry_addr); - mb_debug(" mb_buf_phys = "TARGET_FMT_plx"\n", mbs.mb_buf_phys); - mb_debug(" mod_start = "TARGET_FMT_plx"\n", mbs.mb_buf_phys + mbs.offset_mods); - mb_debug(" mb_mods_count = %d\n", mbs.mb_mods_count); - - /* save bootinfo off the stack */ - mb_bootinfo_data = g_malloc(sizeof(bootinfo)); - memcpy(mb_bootinfo_data, bootinfo, sizeof(bootinfo)); - - /* Pass variables to option rom */ - fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ENTRY, mh_entry_addr); - fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, mh_load_addr); - fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, mbs.mb_buf_size); - fw_cfg_add_bytes(fw_cfg, FW_CFG_KERNEL_DATA, - mbs.mb_buf, mbs.mb_buf_size); - - fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, ADDR_MBI); - fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, sizeof(bootinfo)); - fw_cfg_add_bytes(fw_cfg, FW_CFG_INITRD_DATA, mb_bootinfo_data, - sizeof(bootinfo)); - - option_rom[nb_option_roms].name = "multiboot.bin"; - option_rom[nb_option_roms].bootindex = 0; - nb_option_roms++; - - return 1; /* yes, we are multiboot */ -} |