Author: jkim
Date: Wed Mar 9 16:16:38 2011
New Revision: 219430
URL: http://svn.freebsd.org/changeset/base/219430
Log:
Remove custom interrupt dispatcher. This is a pointless micro-optimization
and it may cause problems if SS and SP are modified by real-mode code.
MFC after: 1 month
Modified:
head/sys/compat/x86bios/x86bios.c
Modified: head/sys/compat/x86bios/x86bios.c
==============================================================================
--- head/sys/compat/x86bios/x86bios.c Wed Mar 9 15:27:11 2011
(r219429)
+++ head/sys/compat/x86bios/x86bios.c Wed Mar 9 16:16:38 2011
(r219430)
@@ -533,25 +533,6 @@ x86bios_emu_outl(struct x86emu *emu, uin
iodev_write_4(port, val);
}
-static void
-x86bios_emu_get_intr(struct x86emu *emu, int intno)
-{
- uint16_t *sp;
- uint32_t iv;
-
- emu->x86.R_SP -= 6;
-
- sp = (uint16_t *)((vm_offset_t)x86bios_seg + emu->x86.R_SP);
- sp[0] = htole16(emu->x86.R_IP);
- sp[1] = htole16(emu->x86.R_CS);
- sp[2] = htole16(emu->x86.R_FLG);
-
- iv = x86bios_get_intr(intno);
- emu->x86.R_IP = iv & 0xffff;
- emu->x86.R_CS = (iv >> 16) & 0xffff;
- emu->x86.R_FLG &= ~(F_IF | F_TF);
-}
-
void *
x86bios_alloc(uint32_t *offset, size_t size, int flags)
{
@@ -764,7 +745,6 @@ fail:
static int
x86bios_init(void)
{
- int i;
mtx_init(&x86bios_lock, "x86bios lock", NULL, MTX_DEF);
@@ -787,9 +767,6 @@ x86bios_init(void)
x86bios_emu.emu_outw = x86bios_emu_outw;
x86bios_emu.emu_outl = x86bios_emu_outl;
- for (i = 0; i < 256; i++)
- x86bios_emu._x86emu_intrTab[i] = x86bios_emu_get_intr;
-
return (0);
}
_______________________________________________
svn-src-head@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/svn-src-head
To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
