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Per PR 8120, put back the reloading of the IDT in cpu_reset(). (Presumably

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this overrides some descriptor caching in the CPU.)
This commit is contained in:
mycroft 2004-07-03 21:02:09 +00:00
parent ace8694948
commit 6343f6f6ee
1 changed files with 5 additions and 2 deletions
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7
sys/arch/i386/i386/machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: machdep.c,v 1.554 2004/05/03 16:38:28 lukem Exp $ */
/* $NetBSD: machdep.c,v 1.555 2004/07/03 21:02:09 mycroft Exp $ */
/*-
* Copyright (c) 1996, 1997, 1998, 2000 The NetBSD Foundation, Inc.
@ -72,7 +72,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.554 2004/05/03 16:38:28 lukem Exp $");
__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.555 2004/07/03 21:02:09 mycroft Exp $");
#include "opt_beep.h"
#include "opt_compat_ibcs2.h"
@ -2039,6 +2039,7 @@ lookup_bootinfo(int type)
void
cpu_reset()
{
struct region_descriptor region;
disable_intr();
@ -2064,6 +2065,8 @@ cpu_reset()
* invalid and causing a fault.
*/
memset((caddr_t)idt, 0, NIDT * sizeof(idt[0]));
setregion(&region, idt, NIDT * sizeof(idt[0]) - 1);
lidt(&region);
__asm __volatile("divl %0,%1" : : "q" (0), "a" (0));
#if 0