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int13 CDROM BIOS fix (aka Solaris x86 install CD fix) 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@807 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-05-16 14:21:17 +00:00
parent 1a084f3d51
commit 3f433d2c87
3 changed files with 45 additions and 1 deletions
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3
pc-bios/README
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@ -1,4 +1,5 @@
- The PC BIOS comes from the Bochs project
(http://bochs.sourceforge.net/).
(http://bochs.sourceforge.net/). A patch from bios.diff was applied.
- The VGA BIOS comes from the LGPL VGA bios project
(http://www.nongnu.org/vgabios/).

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pc-bios/bios.bin
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43
pc-bios/bios.diff Normal file
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@ -0,0 +1,43 @@
Index: rombios.c
===================================================================
RCS file: /cvsroot/bochs/bochs/bios/rombios.c,v
retrieving revision 1.108
diff -u -w -r1.108 rombios.c
--- rombios.c 9 Feb 2004 16:48:50 -0000 1.108
+++ rombios.c 16 May 2004 13:44:26 -0000
@@ -2254,6 +2254,7 @@
type = read_byte(get_SS(),buffer+1) & 0x1f;
removable = (read_byte(get_SS(),buffer+0) & 0x80) ? 1 : 0;
mode = read_byte(get_SS(),buffer+96) ? ATA_MODE_PIO32 : ATA_MODE_PIO16;
+ blksize = 2048;
write_byte(ebda_seg,&EbdaData->ata.devices[device].device, type);
write_byte(ebda_seg,&EbdaData->ata.devices[device].removable, removable);
@@ -3781,7 +3782,17 @@
write_word(ebda_seg, 0x0022, mouse_driver_offset);
write_word(ebda_seg, 0x0024, mouse_driver_seg);
mouse_flags_2 = read_byte(ebda_seg, 0x0027);
+ if (mouse_driver_offset == 0 &&
+ mouse_driver_seg == 0) {
+ /* remove handler */
+ if ( (mouse_flags_2 & 0x80) != 0 ) {
+ mouse_flags_2 &= ~0x80;
+ inhibit_mouse_int_and_events(); // disable IRQ12 and packets
+ }
+ } else {
+ /* install handler */
mouse_flags_2 |= 0x80;
+ }
write_byte(ebda_seg, 0x0027, mouse_flags_2);
CLEAR_CF();
regs.u.r8.ah = 0;
@@ -4409,7 +4420,8 @@
mouse_flags_2 = read_byte(ebda_seg, 0x0027);
if ( (mouse_flags_2 & 0x80) != 0x80 ) {
- BX_PANIC("int74_function:\n");
+ // BX_PANIC("int74_function:\n");
+ return;
}
package_count = mouse_flags_2 & 0x07;