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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/hw/i386/multiboot.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/hw/i386/multiboot.c')
-rw-r--r--qemu/hw/i386/multiboot.c375
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 */
-}