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Make the trap handlers work early in the boot process

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svn path=/trunk/; revision=1727
This commit is contained in:
David Welch 2001-03-22 11:14:22 +00:00
parent 5bbfcbdcde
commit 9b3c1a2a1d
2 changed files with 17 additions and 1 deletions
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5
reactos/ntoskrnl/ke/i386/kernel.c
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@ -36,6 +36,10 @@
#define NDEBUG
#include <internal/debug.h>
/* GLOBALS *******************************************************************/
ULONG KiPcrInitDone = 0;
/* FUNCTIONS *****************************************************************/
VOID
@ -72,6 +76,7 @@ KeInit2(VOID)
PAGE_READWRITE,
(ULONG)PcrPage);
memset((PVOID)KPCR_BASE, 0, 4096);
KiPcrInitDone = 1;
}

13
reactos/ntoskrnl/ke/i386/trap.s
View file

@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: trap.s,v 1.7 2001/03/18 19:35:13 dwelch Exp $
/* $Id: trap.s,v 1.8 2001/03/22 11:14:22 dwelch Exp $
*
* PROJECT: ReactOS kernel
* FILE: ntoskrnl/ke/i386/trap.s
@ -79,6 +79,13 @@ _KiTrapProlog:
pushl %edi
pushl %fs
/*
* Check that the PCR exits, very early in the boot process it may
* not
*/
cmpl $0, %ss:_KiPcrInitDone
je .L5
/* Load the PCR selector into fs */
movl $PCR_SELECTOR, %ebx
movl %ebx, %fs
@ -153,6 +160,10 @@ _KiTrapProlog:
/* Return to the caller */
jmp _KiTrapEpilog
/* Handle the no-pcr case out of line */
.L5:
pushl $0
/* Handle the no-thread case out of line */
.L4:
pushl $0