/** @file | |
CPU Exception Handler library implementition with empty functions. | |
Copyright (c) 2012 - 2017, 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. | |
**/ | |
#include <PiPei.h> | |
#include <Library/CpuExceptionHandlerLib.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 | |
) | |
{ | |
return EFI_SUCCESS; | |
} | |
/** | |
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 | |
) | |
{ | |
return EFI_SUCCESS; | |
} | |
/** | |
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 | |
) | |
{ | |
return EFI_UNSUPPORTED; | |
} | |
/** | |
Display processor context. | |
@param[in] ExceptionType Exception type. | |
@param[in] SystemContext Processor context to be display. | |
**/ | |
VOID | |
EFIAPI | |
DumpCpuContext ( | |
IN EFI_EXCEPTION_TYPE ExceptionType, | |
IN EFI_SYSTEM_CONTEXT SystemContext | |
) | |
{ | |
} | |
/** | |
Initializes all CPU exceptions entries with optional extra initializations. | |
By default, this method should include all functionalities implemented by | |
InitializeCpuExceptionHandlers(), plus extra initialization works, if any. | |
This could be done by calling InitializeCpuExceptionHandlers() directly | |
in this method besides the extra works. | |
InitData is optional and its use and content are processor arch dependent. | |
The typical usage of it is to convey resources which have to be reserved | |
elsewhere and are necessary for the extra initializations of exception. | |
@param[in] VectorInfo Pointer to reserved vector list. | |
@param[in] InitData Pointer to data optional for extra initializations | |
of exception. | |
@retval EFI_SUCCESS The exceptions have been successfully | |
initialized. | |
@retval EFI_INVALID_PARAMETER VectorInfo or InitData contains invalid | |
content. | |
@retval EFI_UNSUPPORTED This function is not supported. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
InitializeCpuExceptionHandlersEx ( | |
IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL, | |
IN CPU_EXCEPTION_INIT_DATA *InitData OPTIONAL | |
) | |
{ | |
return InitializeCpuExceptionHandlers (VectorInfo); | |
} | |