114 lines
2.2 KiB
C
114 lines
2.2 KiB
C
/*++
|
||
|
||
Copyright (c) 1993 Digital Equipment Corporation
|
||
|
||
Module Name:
|
||
|
||
buserror.c
|
||
|
||
Abstract:
|
||
|
||
This module implements the code necessary to process machine checks.
|
||
|
||
Author:
|
||
|
||
Joe Notarangelo 11-Feb-1993
|
||
|
||
Environment:
|
||
|
||
Kernel mode only.
|
||
|
||
Revision History:
|
||
|
||
|
||
--*/
|
||
|
||
#include "ki.h"
|
||
|
||
|
||
|
||
VOID
|
||
KiMachineCheck (
|
||
IN PEXCEPTION_RECORD ExceptionRecord,
|
||
IN PKEXCEPTION_FRAME ExceptionFrame,
|
||
IN PKTRAP_FRAME TrapFrame
|
||
)
|
||
|
||
/*++
|
||
|
||
Routine Description:
|
||
|
||
This function is called to process a machine check. If the vendor
|
||
has supplied a machine check handler with its HAL then the machine
|
||
check handler is called. If the routine returns TRUE indicating
|
||
that the error has been handled then execution resumes, otherwise,
|
||
a bugcheck is raised.
|
||
|
||
If no machine check handler is registered or it does not indicate
|
||
that the error has been handled, then this routine will attempt
|
||
default handling. Default handling consists of checking the
|
||
machine check status in the exception record. If the status indicates
|
||
that the machine check is correctable or retryable then return and
|
||
resume execution, otherwise a bugcheck is raised.
|
||
|
||
Arguments:
|
||
|
||
ExceptionRecord - Supplies a pointer to an exception record.
|
||
|
||
ExceptionFrame - Supplies a pointer to an exception frame.
|
||
|
||
TrapFrame - Supplies a pointer to a trap frame.
|
||
|
||
Return Value:
|
||
|
||
None.
|
||
|
||
--*/
|
||
|
||
{
|
||
|
||
if( ((ULONG_PTR)PCR->MachineCheckError != 0) &&
|
||
(PCR->MachineCheckError)(ExceptionRecord,
|
||
ExceptionFrame,
|
||
TrapFrame) ) {
|
||
|
||
//
|
||
// The HAL has handled the error.
|
||
//
|
||
|
||
return;
|
||
|
||
} else {
|
||
|
||
//
|
||
// Either there is no HAL handler, or it did not handle the
|
||
// error.
|
||
//
|
||
|
||
if( ExceptionRecord->ExceptionInformation[0] != 0 ){
|
||
|
||
//
|
||
// The error is either correctable or retryable, resume
|
||
// execution.
|
||
//
|
||
|
||
#if DBG
|
||
|
||
DbgPrint( "MCHK: resuming correctable or retryable error\n" );
|
||
|
||
#endif //DBG
|
||
|
||
return;
|
||
|
||
}
|
||
}
|
||
|
||
|
||
//
|
||
// The error was not handled and is not correctable or retryable.
|
||
//
|
||
|
||
KeBugCheck(DATA_BUS_ERROR);
|
||
}
|
||
|