You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
89 lines
2.0 KiB
89 lines
2.0 KiB
18 years ago
|
# --- T2-COPYRIGHT-NOTE-BEGIN ---
|
||
|
|
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
|
||
|
|
#
|
||
|
|
# T2 SDE: package/.../grub/mactel.patch
|
||
|
|
# Copyright (C) 2006 The T2 SDE Project
|
||
|
|
#
|
||
|
|
# More information can be found in the files COPYING and README.
|
||
|
|
#
|
||
|
|
# This patch file is dual-licensed. It is available under the license the
|
||
|
|
# patched project is licensed under, as long as it is an OpenSource license
|
||
|
|
# as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms
|
||
|
|
# of the GNU General Public License as published by the Free Software
|
||
|
|
# Foundation; either version 2 of the License, or (at your option) any later
|
||
|
|
# version.
|
||
|
|
# --- T2-COPYRIGHT-NOTE-END ---
|
||
|
|
|
||
|
|
Pasted together out of the OpenSolaris forum ,-) to allow booting
|
||
|
|
on Macintosh Intel hardware, such as the MacBooks and the like.
|
||
|
|
|
||
|
|
- Rene Rebe <rene@exactcode.de>
|
||
|
|
|
||
|
|
--- grub-0.97/stage2/asm.S.vanilla 2006-05-31 19:43:15.858048750 +0200
|
||
|
|
+++ grub-0.97/stage2/asm.S 2006-05-31 19:47:11.584780750 +0200
|
||
|
|
@@ -1651,7 +1651,29 @@
|
||
|
|
jnz 3f
|
||
|
|
ret
|
||
|
|
|
||
|
|
-3: /* use keyboard controller */
|
||
|
|
+3: /*
|
||
|
|
+ * try to switch gateA20 using PORT92, the "Fast A20 and Init"
|
||
|
|
+ * register
|
||
|
|
+ */
|
||
|
|
+ mov $0x92, %dx
|
||
|
|
+ inb %dx, %al
|
||
|
|
+ /* skip the port92 code if it's unimplemented (read returns 0xff) */
|
||
|
|
+ cmpb $0xff, %al
|
||
|
|
+ jz 6f
|
||
|
|
+
|
||
|
|
+ /* set or clear bit1, the ALT_A20_GATE bit */
|
||
|
|
+ movb 4(%esp), %ah
|
||
|
|
+ testb %ah, %ah
|
||
|
|
+ jz 4f
|
||
|
|
+ orb $2, %al
|
||
|
|
+ jmp 5f
|
||
|
|
+4: and $0xfd, %al
|
||
|
|
+
|
||
|
|
+ /* clear the INIT_NOW bit; don't accidently reset the machine */
|
||
|
|
+5: and $0xfe, %al
|
||
|
|
+ outb %al, %dx
|
||
|
|
+
|
||
|
|
+6: /* use keyboard controller */
|
||
|
|
pushl %eax
|
||
|
|
|
||
|
|
call gloop1
|
||
|
|
@@ -1661,9 +1683,12 @@
|
||
|
|
|
||
|
|
gloopint1:
|
||
|
|
inb $K_STATUS
|
||
|
|
+ cmpb $0xff, %al
|
||
|
|
+ jz gloopint1_done
|
||
|
|
andb $K_IBUF_FUL, %al
|
||
|
|
jnz gloopint1
|
||
|
|
|
||
|
|
+gloopint1_done:
|
||
|
|
movb $KB_OUTPUT_MASK, %al
|
||
|
|
cmpb $0, 0x8(%esp)
|
||
|
|
jz gdoit
|
||
|
|
@@ -1684,6 +1709,8 @@
|
||
|
|
|
||
|
|
gloop1:
|
||
|
|
inb $K_STATUS
|
||
|
|
+ cmpb $0xff, %al
|
||
|
|
+ jz gloop2ret
|
||
|
|
andb $K_IBUF_FUL, %al
|
||
|
|
jnz gloop1
|
||
|
|
|
||
|
|
@@ -1991,6 +2018,11 @@
|
||
|
|
ENTRY(console_getkey)
|
||
|
|
push %ebp
|
||
|
|
|
||
|
|
+wait_for_key:
|
||
|
|
+ call EXT_C(console_checkkey)
|
||
|
|
+ incl %eax
|
||
|
|
+ jz wait_for_key
|
||
|
|
+
|
||
|
|
call EXT_C(prot_to_real)
|
||
|
|
.code16
|
||
|
|
|