diff options
| -rw-r--r-- | src/arch/i386/prefix/mromprefix.S | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/src/arch/i386/prefix/mromprefix.S b/src/arch/i386/prefix/mromprefix.S index 058663c4..0f0847e5 100644 --- a/src/arch/i386/prefix/mromprefix.S +++ b/src/arch/i386/prefix/mromprefix.S @@ -98,6 +98,7 @@ find_mem_bar: cmpw $PCI_BAR_5, %di jle 1f stc + movl $0xbabababa, %esi /* Report "No suitable BAR" */ jmp 99f 1: movw $4, %bp @@ -157,15 +158,17 @@ find_mem_bar: /* Locate our ROM image */ 1: addr32 es cmpw $0xaa55, (%eax) - stc - jne 99f - addr32 es cmpl $_build_id, build_id(%eax) je 2f + stc + movl %eax, %esi /* Report failure address */ + jmp 99f +2: addr32 es cmpl $_build_id, build_id(%eax) + je 3f addr32 es movzbl 2(%eax), %ecx shll $9, %ecx addl %ecx, %eax jmp 1b -2: +3: /* Copy payload to buffer, or set buffer address to BAR address */ testl %esi, %esi |