svn commit: r220788 - stable/8/sys/compat/x86bios

[Jung-uk Kim]

Author: jkim
Date: Mon Apr 18 15:55:02 2011
New Revision: 220788
URL: http://svn.freebsd.org/changeset/base/220788

Log:
  MFC:	r219430
  
  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.

Modified:
  stable/8/sys/compat/x86bios/x86bios.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/compat/x86bios/x86bios.c
==============================================================================
--- stable/8/sys/compat/x86bios/x86bios.c	Mon Apr 18 15:30:25 2011	(r220787)
+++ stable/8/sys/compat/x86bios/x86bios.c	Mon Apr 18 15:55:02 2011	(r220788)
@@ -291,25 +291,6 @@ x86bios_emu_outl(struct x86emu *emu, uin
 	outl(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)
 {
@@ -567,7 +548,6 @@ x86bios_unmap_mem(void)
 static void
 x86bios_init(void *arg __unused)
 {
-	int i;
 
 	mtx_init(&x86bios_lock, "x86bios lock", NULL, MTX_SPIN);
 
@@ -598,9 +578,6 @@ x86bios_init(void *arg __unused)
 	x86bios_emu.emu_outb = x86bios_emu_outb;
 	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;
 }
 
 static void