diff options
| author | Jan Kiszka <jan.kiszka@siemens.com> | 2010-02-18 17:13:30 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-02-22 11:40:51 +0200 |
| commit | 211721f31c62cc889369da79d75c38f7297b6465 (patch) | |
| tree | e0438e4890279707803be508b5a662786a5b076f /pc-bios | |
| parent | 943bbe20a5fa9d2c7b0201a6fa7227fd483050dd (diff) | |
extboot: Clean up host-guest interface
Drop the unused boot mode port 0x404 from the host-guest interface of
extboot and remove related code from both sides.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'pc-bios')
| -rw-r--r-- | pc-bios/optionrom/extboot.S | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/pc-bios/optionrom/extboot.S b/pc-bios/optionrom/extboot.S index 1eeb17238..db6c2b673 100644 --- a/pc-bios/optionrom/extboot.S +++ b/pc-bios/optionrom/extboot.S @@ -62,15 +62,6 @@ int19_handler: xor %ax, %ax mov %ax, %ds - movw $0x404, %dx - inb %dx, %al - cmp $1, %al - je 1f - cmp $2, %al - je 2f - jmp 3f - -1: /* hook int13: intb(0x404) == 1 */ /* save old int 13 to int 2c */ mov (0x13*4), %eax mov %eax, (OLD_INT13) @@ -78,21 +69,7 @@ int19_handler: /* install our int 13 handler */ movw $int13_handler, (0x13*4) mov %cs, (0x13*4+2) - jmp 3f -2: /* linux boot: intb(0x404) == 2 */ - cli - cld - mov $0x9000, %ax - mov %ax, %ds - mov %ax, %es - mov %ax, %fs - mov %ax, %gs - mov %ax, %ss - mov $0x8ffe, %sp - ljmp $0x9000 + 0x20, $0 - -3: /* fall through: inb(0x404) == 0 */ /* restore previous int $0x19 handler */ mov (OLD_INT19),%eax mov %eax,(0x19*4) |