diff options
| -rw-r--r-- | src/arch/i386/interface/pcbios/pcibios.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/arch/i386/interface/pcbios/pcibios.c b/src/arch/i386/interface/pcbios/pcibios.c index bec70bf3..34efa0b3 100644 --- a/src/arch/i386/interface/pcbios/pcibios.c +++ b/src/arch/i386/interface/pcbios/pcibios.c @@ -42,7 +42,11 @@ static int pcibios_num_bus ( void ) { int discard_a, discard_D; uint8_t max_bus; - __asm__ __volatile__ ( REAL_CODE ( "stc\n\t" + /* We issue this call using flat real mode, to work around a + * bug in some HP BIOSes. + */ + __asm__ __volatile__ ( REAL_CODE ( "call flatten_real_mode\n\t" + "stc\n\t" "int $0x1a\n\t" "jnc 1f\n\t" "xorw %%cx, %%cx\n\t" |