diff options
Diffstat (limited to 'entry.S')
| -rw-r--r-- | entry.S | 45 |
1 files changed, 45 insertions, 0 deletions
@@ -91,3 +91,48 @@ ENTRY(bios_int15) IRET ENTRY_END(bios_int15) + + .code32 +ENTRY(pcibios_entry) + clc + pushfl + SAVE_BIOSREGS + + movl %esp, %eax + call pcibios_handler + + RESTORE_BIOSREGS + popfl + lretl +ENTRY_END(pcibios_entry) + +ENTRY(bios32_entry) + pushfl + testl %ebx, %ebx /* BIOS32 service directory? */ + jnz 2f + cmp $0x49435024, %eax /* "$PCI"? */ + movb $0x80, %al /* service not present */ + jne 1f + xorl %ebx, %ebx /* fill in base/length/entry */ + movl $(1 << 20), %ecx + movl $pcibios_entry, %edx + movb $0x00, %al /* service present */ +1: + popfl + lretl +2: + movb $0x81, %al /* unimplemented function */ + popfl + lretl +ENTRY_END(bios32_entry) + +ENTRY(pic_base) + call 1f +2: + ret +1: + popl %eax + pushl %eax + subl $2b, %eax + ret /* return to 2b */ +ENTRY_END(pic_base) |