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