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UefiCpuPkg:Add RegisterExceptionHandler in PeiCpuExceptionHandlerLib

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The PEI instance of the CpuExceptionHandlerLib didn't implement the
RegisterCpuInterruptHandler() API. This patch adds the missing API.

Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
This commit is contained in:
Liu, Zhiguang 2022-10-12 15:27:45 +08:00 committed by mergify[bot]
parent d618fe05bf
commit a7e070808c
1 changed files with 37 additions and 1 deletions
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38
UefiCpuPkg/Library/CpuExceptionHandlerLib/PeiCpuException.c
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@ -100,6 +100,42 @@ CommonExceptionHandler (
CommonExceptionHandlerWorker (ExceptionType, SystemContext, ExceptionHandlerData); CommonExceptionHandlerWorker (ExceptionType, SystemContext, ExceptionHandlerData);
} }
/**
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() is 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
)
{
EXCEPTION_HANDLER_DATA *ExceptionHandlerData;
ExceptionHandlerData = GetExceptionHandlerData ();
return RegisterCpuInterruptHandlerWorker (InterruptType, InterruptHandler, ExceptionHandlerData);
}
/** /**
Initializes all CPU exceptions entries and provides the default exception handlers. Initializes all CPU exceptions entries and provides the default exception handlers.
@ -135,7 +171,7 @@ InitializeCpuExceptionHandlers (
ASSERT (ExceptionHandlerData != NULL); ASSERT (ExceptionHandlerData != NULL);
ExceptionHandlerData->IdtEntryCount = CPU_EXCEPTION_NUM; ExceptionHandlerData->IdtEntryCount = CPU_EXCEPTION_NUM;
ExceptionHandlerData->ReservedVectors = ReservedVectors; ExceptionHandlerData->ReservedVectors = ReservedVectors;
ExceptionHandlerData->ExternalInterruptHandler = NULL; ExceptionHandlerData->ExternalInterruptHandler = AllocateZeroPool (sizeof (EFI_CPU_INTERRUPT_HANDLER) * ExceptionHandlerData->IdtEntryCount);
InitializeSpinLock (&ExceptionHandlerData->DisplayMessageSpinLock); InitializeSpinLock (&ExceptionHandlerData->DisplayMessageSpinLock);
Status = InitializeCpuExceptionHandlersWorker (VectorInfo, ExceptionHandlerData); Status = InitializeCpuExceptionHandlersWorker (VectorInfo, ExceptionHandlerData);