diff options
author | Kevin Wolf <kwolf@redhat.com> | 2009-12-04 17:19:25 +0100 |
---|---|---|
committer | Anthony Liguori <aliguori@us.ibm.com> | 2009-12-18 11:26:26 -0600 |
commit | 092493be3caab1ac77f4223b4c3fb0975d1ed490 (patch) | |
tree | 2114404d419f7424302d5ec8332e81654ce0c46f /hw | |
parent | 75f124753922451ee697defd81a80a91ce3f9888 (diff) | |
download | hqemu-092493be3caab1ac77f4223b4c3fb0975d1ed490.zip hqemu-092493be3caab1ac77f4223b4c3fb0975d1ed490.tar.gz |
Fix loading of ELF multiboot kernels
The multiboot implementation assumed that there is only one program header
(which contains the entry point) and that the entry point is at the start of
the code. This doesn't hold true generally and caused too little data to be
loaded.
Fix the loading code to pass the whole loaded data to the Multiboot Option ROM.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw')
-rw-r--r-- | hw/loader.c | 2 | ||||
-rw-r--r-- | hw/pc.c | 10 |
2 files changed, 6 insertions, 6 deletions
diff --git a/hw/loader.c b/hw/loader.c index 2d7a2c4..4c6981f 100644 --- a/hw/loader.c +++ b/hw/loader.c @@ -718,8 +718,6 @@ int rom_copy(uint8_t *dest, target_phys_addr_t addr, size_t size) QTAILQ_FOREACH(rom, &roms, next) { if (rom->max) continue; - if (rom->min > addr) - continue; if (rom->min + rom->romsize < addr) continue; if (rom->min > end) @@ -560,19 +560,21 @@ static int load_multiboot(void *fw_cfg, } if (!(flags & 0x00010000)) { /* MULTIBOOT_HEADER_HAS_ADDR */ uint64_t elf_entry; + uint64_t elf_low, elf_high; int kernel_size; fclose(f); - kernel_size = load_elf(kernel_filename, 0, &elf_entry, NULL, NULL, + kernel_size = load_elf(kernel_filename, 0, &elf_entry, &elf_low, &elf_high, 0, ELF_MACHINE, 0); if (kernel_size < 0) { fprintf(stderr, "Error while loading elf kernel\n"); exit(1); } - mh_load_addr = mh_entry_addr = elf_entry; - mb_kernel_size = kernel_size; + mh_load_addr = elf_low; + mb_kernel_size = elf_high - elf_low; + mh_entry_addr = elf_entry; mb_kernel_data = qemu_malloc(mb_kernel_size); - if (rom_copy(mb_kernel_data, elf_entry, kernel_size) != kernel_size) { + if (rom_copy(mb_kernel_data, mh_load_addr, mb_kernel_size) != mb_kernel_size) { fprintf(stderr, "Error while fetching elf kernel from rom\n"); exit(1); } |