PeiDxeSmmCpuException.c File Reference

#include <Library/DebugLib.h>
#include <Library/CcExitLib.h>
#include "CpuExceptionCommon.h"

Go to the source code of this file.

Functions
VOID	CommonExceptionHandlerWorker (IN EFI_EXCEPTION_TYPE ExceptionType, IN EFI_SYSTEM_CONTEXT SystemContext, IN EXCEPTION_HANDLER_DATA *ExceptionHandlerData)
VOID	UpdateIdtTable (IN IA32_IDT_GATE_DESCRIPTOR *IdtTable, IN EXCEPTION_HANDLER_TEMPLATE_MAP *TemplateMap, IN EXCEPTION_HANDLER_DATA *ExceptionHandlerData)
EFI_STATUS	InitializeCpuExceptionHandlersWorker (IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL, IN OUT EXCEPTION_HANDLER_DATA *ExceptionHandlerData)
EFI_STATUS	RegisterCpuInterruptHandlerWorker (IN EFI_EXCEPTION_TYPE InterruptType, IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler, IN EXCEPTION_HANDLER_DATA *ExceptionHandlerData)

Detailed Description

CPU Exception Library provides PEI/DXE/SMM CPU common exception handler.

Copyright (c) 2012 - 2022, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file PeiDxeSmmCpuException.c.

Function Documentation

CommonExceptionHandlerWorker()

VOID CommonExceptionHandlerWorker	(	IN EFI_EXCEPTION_TYPE	ExceptionType,
		IN EFI_SYSTEM_CONTEXT	SystemContext,
		IN EXCEPTION_HANDLER_DATA *	ExceptionHandlerData
	)

Internal worker function for common exception handler.

Parameters

ExceptionType	Exception type.
SystemContext	Pointer to EFI_SYSTEM_CONTEXT.
ExceptionHandlerData	Pointer to exception handler data.

Definition at line 21 of file PeiDxeSmmCpuException.c.

InitializeCpuExceptionHandlersWorker()

EFI_STATUS InitializeCpuExceptionHandlersWorker	(	IN EFI_VECTOR_HANDOFF_INFO *VectorInfo	OPTIONAL,
		IN OUT EXCEPTION_HANDLER_DATA *	ExceptionHandlerData
	)

Internal worker function to initialize exception handler.

Parameters

[in]	VectorInfo	Pointer to reserved vector list.
[in,out]	ExceptionHandlerData	Pointer to exception handler data.

Return values

EFI_SUCCESS	CPU Exception Entries have been successfully initialized with default exception handlers.
EFI_INVALID_PARAMETER	VectorInfo includes the invalid content if VectorInfo is not NULL.
EFI_UNSUPPORTED	This function is not supported.

Definition at line 251 of file PeiDxeSmmCpuException.c.

RegisterCpuInterruptHandlerWorker()

EFI_STATUS RegisterCpuInterruptHandlerWorker	(	IN EFI_EXCEPTION_TYPE	InterruptType,
		IN EFI_CPU_INTERRUPT_HANDLER	InterruptHandler,
		IN EXCEPTION_HANDLER_DATA *	ExceptionHandlerData
	)

Registers a function to be called from the processor interrupt handler.

Parameters

[in]	InterruptType	Defines which interrupt or exception to hook.
[in]	InterruptHandler	A pointer to a function of type EFI_CPU_INTERRUPT_HANDLER that is called when a processor interrupt occurs. If this parameter is NULL, then the handler will be uninstalled
[in]	ExceptionHandlerData	Pointer to exception handler data.

Return values

EFI_SUCCESS	The handler for the processor interrupt was successfully installed or uninstalled.
EFI_ALREADY_STARTED	InterruptHandler is not NULL, and a handler for InterruptType was previously installed.
EFI_INVALID_PARAMETER	InterruptHandler is NULL, and a handler for InterruptType was not previously installed.
EFI_UNSUPPORTED	The interrupt specified by InterruptType is not supported, or this function is not supported.

Definition at line 307 of file PeiDxeSmmCpuException.c.

UpdateIdtTable()

VOID UpdateIdtTable	(	IN IA32_IDT_GATE_DESCRIPTOR *	IdtTable,
		IN EXCEPTION_HANDLER_TEMPLATE_MAP *	TemplateMap,
		IN EXCEPTION_HANDLER_DATA *	ExceptionHandlerData
	)

Internal worker function to update IDT entries accordling to vector attributes.

Parameters

[in]	IdtTable	Pointer to IDT table.
[in]	TemplateMap	Pointer to a buffer where the address map is returned.
[in]	ExceptionHandlerData	Pointer to exception handler data.

Definition at line 176 of file PeiDxeSmmCpuException.c.