SecPeiExceptionLib.c File Reference

#include <Library/BaseLib.h>
#include <Library/CpuLib.h>
#include <Library/CpuExceptionHandlerLib.h>
#include <Library/DebugLib.h>
#include <Library/SerialPortLib.h>
#include <Protocol/DebugSupport.h>
#include <Register/LoongArch64/Csr.h>
#include "ExceptionCommon.h"

Go to the source code of this file.

Functions
EFI_STATUS	RegisterCpuInterruptHandler (IN EFI_EXCEPTION_TYPE InterruptType, IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler)
VOID EFIAPI	CommonExceptionHandler (IN EFI_EXCEPTION_TYPE ExceptionType, IN OUT EFI_SYSTEM_CONTEXT SystemContext)
EFI_STATUS EFIAPI	InitializeCpuExceptionHandlers (IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL)

Detailed Description

LoongArch exception library implemenation for PEI and SEC modules.

Copyright (c) 2024, Loongson Technology Corporation Limited. All rights reserved.

SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file SecPeiExceptionLib.c.

Function Documentation

CommonExceptionHandler()

VOID EFIAPI CommonExceptionHandler	(	IN EFI_EXCEPTION_TYPE	ExceptionType,
		IN OUT EFI_SYSTEM_CONTEXT	SystemContext
	)

Common exception handler.

Parameters

ExceptionType	Exception type.
SystemContext	Pointer to EFI_SYSTEM_CONTEXT.

Definition at line 52 of file SecPeiExceptionLib.c.

InitializeCpuExceptionHandlers()

EFI_STATUS EFIAPI InitializeCpuExceptionHandlers

(

IN EFI_VECTOR_HANDOFF_INFO *VectorInfo

OPTIONAL

)

Initializes all CPU exceptions entries and provides the default exception handlers.

Always return EFI_SUCCESS in the SEC exception initialization module.

Parameters

[in]

VectorInfo

Pointer to reserved vector list.

Return values

EFI_SUCCESS

CPU Exception Entries have been successfully initialized with default exception handlers.

Definition at line 97 of file SecPeiExceptionLib.c.

RegisterCpuInterruptHandler()

EFI_STATUS RegisterCpuInterruptHandler	(	IN EFI_EXCEPTION_TYPE	InterruptType,
		IN EFI_CPU_INTERRUPT_HANDLER	InterruptHandler
	)

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

Always return EFI_UNSUPPORTED in the SEC exception initialization module.

Parameters

InterruptType	A pointer to the processor's current interrupt state. Set to TRUE if interrupts are enabled and FALSE if interrupts are disabled.
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.

Return values

EFI_UNSUPPORTED

The interrupt specified by InterruptType is not supported.

Definition at line 35 of file SecPeiExceptionLib.c.