diff options
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/i386/prefix/romprefix.S | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/arch/i386/prefix/romprefix.S b/src/arch/i386/prefix/romprefix.S index 2b4c20b8e..35d037eff 100644 --- a/src/arch/i386/prefix/romprefix.S +++ b/src/arch/i386/prefix/romprefix.S @@ -352,9 +352,13 @@ pmm_scan: call print_message /* We have PMM and so a 1kB stack: preserve whole registers */ pushal - /* Allocate image source PMM block */ + /* Allocate image source PMM block. Round up the size to the + * nearest 4kB (8 512-byte sectors) to work around AMI BIOS bugs. + */ movzbl romheader_size, %ecx addw extra_size, %cx + addw $0x0007, %cx /* Round up to multiple of 8 512-byte sectors */ + andw $0xfff8, %cx shll $5, %ecx movl $PMM_HANDLE_BASE_IMAGE_SOURCE, %ebx movw $get_pmm_image_source, %bp |