The PEI instance of the CpuExceptionHandlerLib didn't implement the
RegisterCpuInterruptHandler() API. This patch adds the missing API.
Signed-off-by: Zhiguang Liu <zhiguang....@intel.com>
Cc: Eric Dong <eric.d...@intel.com>
Cc: Ray Ni <ray...@intel.com>
Cc: Rahul Kumar <rahul1.ku...@intel.com>
---
UefiCpuPkg/Library/CpuExceptionHandlerLib/PeiCpuException.c | 38
+++++++++++++++++++++++++++++++++++++-
1 file changed, 37 insertions(+), 1 deletion(-)
diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/PeiCpuException.c
b/UefiCpuPkg/Library/CpuExceptionHandlerLib/PeiCpuException.c
index 940d83a92f..1c3012b770 100644
--- a/UefiCpuPkg/Library/CpuExceptionHandlerLib/PeiCpuException.c
+++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/PeiCpuException.c
@@ -100,6 +100,42 @@ CommonExceptionHandler (
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.
@@ -135,7 +171,7 @@ InitializeCpuExceptionHandlers (
ASSERT (ExceptionHandlerData != NULL);
ExceptionHandlerData->IdtEntryCount = CPU_EXCEPTION_NUM;
ExceptionHandlerData->ReservedVectors = ReservedVectors;
- ExceptionHandlerData->ExternalInterruptHandler = NULL;
+ ExceptionHandlerData->ExternalInterruptHandler = AllocateZeroPool (sizeof
(EFI_CPU_INTERRUPT_HANDLER) * ExceptionHandlerData->IdtEntryCount);
InitializeSpinLock (&ExceptionHandlerData->DisplayMessageSpinLock);
Status = InitializeCpuExceptionHandlersWorker (VectorInfo,
ExceptionHandlerData);
--
2.31.1.windows.1
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