svn commit: r219430 - head/sys/compat/x86bios

[Jung-uk Kim]

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);
 }