* THE SOFTWARE.
*/
+#include "qemu/osdep.h"
+#include "qemu/option.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"
+#include "qemu/error-report.h"
/* Show multiboot debug output */
//#define DEBUG_MULTIBOOT
#ifdef DEBUG_MULTIBOOT
-#define mb_debug(a...) fprintf(stderr, ## a)
+#define mb_debug(a...) error_report(a)
#else
#define mb_debug(a...)
#endif
hwaddr p = s->offset_cmdlines;
char *b = (char *)s->mb_buf + p;
- get_opt_value(b, strlen(cmdline) + 1, cmdline);
+ memcpy(b, cmdline, strlen(cmdline) + 1);
s->offset_cmdlines += strlen(b) + 1;
return s->mb_buf_phys + p;
}
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",
+ mb_debug("mod%02d: "TARGET_FMT_plx" - "TARGET_FMT_plx,
s->mb_mods_count, start, end);
s->mb_mods_count++;
if (!is_multiboot)
return 0; /* no multiboot */
- mb_debug("qemu: I believe we found a multiboot image!\n");
+ mb_debug("qemu: I believe we found a multiboot image!");
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");
+ error_report("qemu: multiboot knows VBE. we don't.");
}
if (!(flags & 0x00010000)) { /* MULTIBOOT_HEADER_HAS_ADDR */
uint64_t elf_entry;
fclose(f);
if (((struct elf64_hdr*)header)->e_machine == EM_X86_64) {
- fprintf(stderr, "Cannot load x86-64 image, give a 32bit one.\n");
+ error_report("Cannot load x86-64 image, give a 32bit one.");
exit(1);
}
kernel_size = load_elf(kernel_filename, NULL, NULL, &elf_entry,
- &elf_low, &elf_high, 0, I386_ELF_MACHINE, 0);
+ &elf_low, &elf_high, 0, I386_ELF_MACHINE,
+ 0, 0);
if (kernel_size < 0) {
- fprintf(stderr, "Error while loading elf kernel\n");
+ error_report("Error while loading elf kernel");
exit(1);
}
mh_load_addr = elf_low;
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");
+ error_report("Error while fetching elf kernel from rom");
exit(1);
}
- mb_debug("qemu: loading multiboot-elf kernel (%#x bytes) with entry %#zx\n",
- mb_kernel_size, (size_t)mh_entry_addr);
+ mb_debug("qemu: loading multiboot-elf kernel "
+ "(%#x bytes) with entry %#zx",
+ 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);
+ if (mh_header_addr < mh_load_addr) {
+ error_report("invalid load_addr address");
+ exit(1);
+ }
+ if (mh_header_addr - mh_load_addr > i) {
+ error_report("invalid header_addr address");
+ exit(1);
+ }
+
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;
+ if (mh_load_end_addr < mh_load_addr) {
+ error_report("invalid load_end_addr address");
+ exit(1);
+ }
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;
+ if (kernel_file_size < mb_kernel_text_offset) {
+ error_report("invalid kernel_file_size");
+ exit(1);
+ }
+ mb_load_size = kernel_file_size - mb_kernel_text_offset;
+ }
+ if (mb_load_size > UINT32_MAX - mh_load_addr) {
+ error_report("kernel does not fit in address space");
+ exit(1);
+ }
+ if (mh_bss_end_addr) {
+ if (mh_bss_end_addr < (mh_load_addr + mb_load_size)) {
+ error_report("invalid bss_end_addr address");
+ exit(1);
+ }
+ mb_kernel_size = mh_bss_end_addr - mh_load_addr;
+ } else {
+ mb_kernel_size = mb_load_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_debug("multiboot: header_addr = %#x", mh_header_addr);
+ mb_debug("multiboot: load_addr = %#x", mh_load_addr);
+ mb_debug("multiboot: load_end_addr = %#x", mh_load_end_addr);
+ mb_debug("multiboot: bss_end_addr = %#x", mh_bss_end_addr);
+ mb_debug("qemu: loading multiboot kernel (%#x bytes) at %#x",
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");
+ error_report("fread() failed");
exit(1);
}
memset(mbs.mb_buf + mb_load_size, 0, mb_kernel_size - mb_load_size);
cmdline_len = strlen(kernel_filename) + 1;
cmdline_len += strlen(kernel_cmdline) + 1;
if (initrd_filename) {
- const char *r = initrd_filename;
+ const char *r = get_opt_value(initrd_filename, NULL);
cmdline_len += strlen(r) + 1;
mbs.mb_mods_avail = 1;
- while (*(r = get_opt_value(NULL, 0, r))) {
- mbs.mb_mods_avail++;
- r++;
+ while (1) {
+ mbs.mb_mods_avail++;
+ r = get_opt_value(r, NULL);
+ if (!*r) {
+ break;
+ }
+ r++;
}
}
mbs.offset_bootloader = mbs.offset_cmdlines + cmdline_len;
if (initrd_filename) {
- char *next_initrd, not_last;
+ const char *next_initrd;
+ char not_last;
+ char *one_file = NULL;
mbs.offset_mods = mbs.mb_buf_size;
int mb_mod_length;
uint32_t offs = mbs.mb_buf_size;
- next_initrd = (char *)get_opt_value(NULL, 0, initrd_filename);
+ next_initrd = get_opt_value(initrd_filename, &one_file);
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, ' ')))
+ hwaddr c = mb_add_cmdline(&mbs, one_file);
+ next_space = strchr(one_file, ' ');
+ if (next_space) {
*next_space = '\0';
- mb_debug("multiboot loading module: %s\n", initrd_filename);
- mb_mod_length = get_image_size(initrd_filename);
+ }
+ mb_debug("multiboot loading module: %s", one_file);
+ mb_mod_length = get_image_size(one_file);
if (mb_mod_length < 0) {
- fprintf(stderr, "Failed to open file '%s'\n", initrd_filename);
+ error_report("Failed to open file '%s'", one_file);
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);
+ load_image(one_file, (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",
+ mb_debug("mod_start: %p\nmod_end: %p\n cmdline: "TARGET_FMT_plx,
(char *)mbs.mb_buf + offs,
(char *)mbs.mb_buf + offs + mb_mod_length, c);
initrd_filename = next_initrd+1;
+ g_free(one_file);
+ one_file = NULL;
} while (not_last);
}
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);
+ mb_debug("multiboot: entry_addr = %#x", mh_entry_addr);
+ mb_debug(" mb_buf_phys = "TARGET_FMT_plx, mbs.mb_buf_phys);
+ mb_debug(" mod_start = "TARGET_FMT_plx,
+ mbs.mb_buf_phys + mbs.offset_mods);
+ mb_debug(" mb_mods_count = %d", mbs.mb_mods_count);
/* save bootinfo off the stack */
- mb_bootinfo_data = g_malloc(sizeof(bootinfo));
- memcpy(mb_bootinfo_data, bootinfo, sizeof(bootinfo));
+ mb_bootinfo_data = g_memdup(bootinfo, sizeof(bootinfo));
/* Pass variables to option rom */
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ENTRY, mh_entry_addr);
projects / qemu.git / blobdiff