3f25e6eab9
Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Eric Dong <eric.dong@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14934 6f19259b-4bc3-4df7-8a09-765794883524
97 lines
4.5 KiB
C
97 lines
4.5 KiB
C
/** @file
|
|
CPU Exception library provides the default CPU interrupt/exception handler.
|
|
It also provides capability to register user interrupt/exception handler.
|
|
|
|
Copyright (c) 2012 - 2013, Intel Corporation. All rights reserved.<BR>
|
|
This program and the accompanying materials
|
|
are licensed and made available under the terms and conditions of the BSD License
|
|
which accompanies this distribution. The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
**/
|
|
|
|
#ifndef __CPU_EXCEPTION_HANDLER_LIB_H__
|
|
#define __CPU_EXCEPTION_HANDLER_LIB_H__
|
|
|
|
#include <Ppi/VectorHandoffInfo.h>
|
|
#include <Protocol/Cpu.h>
|
|
|
|
/**
|
|
Initializes all CPU exceptions entries and provides the default exception handlers.
|
|
|
|
Caller should try to get an array of interrupt and/or exception vectors that are in use and need to
|
|
persist by EFI_VECTOR_HANDOFF_INFO defined in PI 1.3 specification.
|
|
If caller cannot get reserved vector list or it does not exists, set VectorInfo to NULL.
|
|
If VectorInfo is not NULL, the exception vectors will be initialized per vector attribute accordingly.
|
|
|
|
@param[in] VectorInfo Pointer to reserved vector list.
|
|
|
|
@retval EFI_SUCCESS CPU Exception Entries have been successfully initialized
|
|
with default exception handlers.
|
|
@retval EFI_INVALID_PARAMETER VectorInfo includes the invalid content if VectorInfo is not NULL.
|
|
@retval EFI_UNSUPPORTED This function is not supported.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
InitializeCpuExceptionHandlers (
|
|
IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Initializes all CPU interrupt/exceptions entries and provides the default interrupt/exception handlers.
|
|
|
|
Caller should try to get an array of interrupt and/or exception vectors that are in use and need to
|
|
persist by EFI_VECTOR_HANDOFF_INFO defined in PI 1.3 specification.
|
|
If caller cannot get reserved vector list or it does not exists, set VectorInfo to NULL.
|
|
If VectorInfo is not NULL, the exception vectors will be initialized per vector attribute accordingly.
|
|
|
|
@param[in] VectorInfo Pointer to reserved vector list.
|
|
|
|
@retval EFI_SUCCESS All CPU interrupt/exception entries have been successfully initialized
|
|
with default interrupt/exception handlers.
|
|
@retval EFI_INVALID_PARAMETER VectorInfo includes the invalid content if VectorInfo is not NULL.
|
|
@retval EFI_UNSUPPORTED This function is not supported.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
InitializeCpuInterruptHandlers (
|
|
IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Registers a function to be called from the processor interrupt handler.
|
|
|
|
This function registers and enables the handler specified by InterruptHandler for a processor
|
|
interrupt or exception type specified by InterruptType. If InterruptHandler is NULL, then the
|
|
handler for the processor interrupt or exception type specified by InterruptType is uninstalled.
|
|
The installed handler is called once for each processor interrupt or exception.
|
|
NOTE: This function should be invoked after InitializeCpuExceptionHandlers() or
|
|
InitializeCpuInterruptHandlers() invoked, otherwise EFI_UNSUPPORTED returned.
|
|
|
|
@param[in] InterruptType Defines which interrupt or exception to hook.
|
|
@param[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.
|
|
|
|
@retval EFI_SUCCESS The handler for the processor interrupt was successfully installed or uninstalled.
|
|
@retval EFI_ALREADY_STARTED InterruptHandler is not NULL, and a handler for InterruptType was
|
|
previously installed.
|
|
@retval EFI_INVALID_PARAMETER InterruptHandler is NULL, and a handler for InterruptType was not
|
|
previously installed.
|
|
@retval EFI_UNSUPPORTED The interrupt specified by InterruptType is not supported,
|
|
or this function is not supported.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RegisterCpuInterruptHandler (
|
|
IN EFI_EXCEPTION_TYPE InterruptType,
|
|
IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler
|
|
);
|
|
|
|
#endif
|