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authorAdam Lackorzynski <adam@os.inf.tu-dresden.de>2009-11-30 23:25:44 +0100
committerAnthony Liguori <aliguori@us.ibm.com>2009-12-03 15:25:58 -0600
commit53ea95de527f146d902aaf442625e0fe6dd25524 (patch)
tree72bf9cc03515ad237023f8e0be3dec4b421d0386
parentdc61b0dc5a24c7dac5e54a2baf9be235038aae64 (diff)
downloadqemu-53ea95de527f146d902aaf442625e0fe6dd25524.tar.gz
multiboot: Fix module loading and setting of mmap.
Signed-off-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de> Acked-by: Alexander Graf <agraf@suse.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
-rw-r--r--hw/pc.c2
-rw-r--r--pc-bios/multiboot.binbin512 -> 1024 bytes
-rw-r--r--pc-bios/optionrom/multiboot.S5
3 files changed, 5 insertions, 2 deletions
diff --git a/hw/pc.c b/hw/pc.c
index 97964b27eb..dac01ce575 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -666,7 +666,7 @@ static int load_multiboot(void *fw_cfg,
/* append module data at the end of last module */
mb_kernel_data = qemu_realloc(mb_kernel_data,
- mh_load_addr - mb_mod_end);
+ mb_mod_end - mh_load_addr);
load_image(initrd_filename,
mb_kernel_data + mb_mod_start - mh_load_addr);
diff --git a/pc-bios/multiboot.bin b/pc-bios/multiboot.bin
index 59737c3c67..d7da6e04ad 100644
--- a/pc-bios/multiboot.bin
+++ b/pc-bios/multiboot.bin
Binary files differ
diff --git a/pc-bios/optionrom/multiboot.S b/pc-bios/optionrom/multiboot.S
index be5c9fcf36..913183739c 100644
--- a/pc-bios/optionrom/multiboot.S
+++ b/pc-bios/optionrom/multiboot.S
@@ -62,6 +62,9 @@ run_multiboot:
add %eax, %ebx
movl %ebx, %gs:GS_GDT_DESC + 2
+ xor %eax, %eax
+ mov %eax, %es
+
/* Read the bootinfo struct into RAM */
read_fw_blob(FW_CFG_INITRD)
@@ -71,7 +74,7 @@ run_multiboot:
mov %ax, %fs
/* ES = mmap_addr */
- mov %eax, %fs:0x48
+ mov %fs:48, %eax
shr $4, %eax
mov %ax, %es