CPU Exception library provides the default CPU interrupt/exception handler.\r
It also provides capability to register user interrupt/exception handler.\r
\r
- Copyright (c) 2012 - 2018, Intel Corporation. All rights reserved.<BR>\r
+ Copyright (c) 2012 - 2022, Intel Corporation. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
IN CPU_EXCEPTION_INIT_DATA *InitData OPTIONAL\r
);\r
\r
-/**\r
- Initializes all CPU interrupt/exceptions entries and provides the default interrupt/exception handlers.\r
-\r
- Caller should try to get an array of interrupt and/or exception vectors that are in use and need to\r
- persist by EFI_VECTOR_HANDOFF_INFO defined in PI 1.3 specification.\r
- If caller cannot get reserved vector list or it does not exists, set VectorInfo to NULL.\r
- If VectorInfo is not NULL, the exception vectors will be initialized per vector attribute accordingly.\r
-\r
- @param[in] VectorInfo Pointer to reserved vector list.\r
-\r
- @retval EFI_SUCCESS All CPU interrupt/exception entries have been successfully initialized\r
- with default interrupt/exception handlers.\r
- @retval EFI_INVALID_PARAMETER VectorInfo includes the invalid content if VectorInfo is not NULL.\r
- @retval EFI_UNSUPPORTED This function is not supported.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-InitializeCpuInterruptHandlers (\r
- IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL\r
- );\r
-\r
/**\r
Registers a function to be called from the processor interrupt handler.\r
\r
interrupt or exception type specified by InterruptType. If InterruptHandler is NULL, then the\r
handler for the processor interrupt or exception type specified by InterruptType is uninstalled.\r
The installed handler is called once for each processor interrupt or exception.\r
- NOTE: This function should be invoked after InitializeCpuExceptionHandlers() or\r
- InitializeCpuInterruptHandlers() invoked, otherwise EFI_UNSUPPORTED returned.\r
+ NOTE: This function should be invoked after InitializeCpuExceptionHandlers() is invoked,\r
+ otherwise EFI_UNSUPPORTED returned.\r
\r
@param[in] InterruptType Defines which interrupt or exception to hook.\r
@param[in] InterruptHandler A pointer to a function of type EFI_CPU_INTERRUPT_HANDLER that is called\r
/** @file\r
CPU Exception Handler library implementition with empty functions.\r
\r
- Copyright (c) 2012 - 2018, Intel Corporation. All rights reserved.<BR>\r
+ Copyright (c) 2012 - 2022, Intel Corporation. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
return EFI_SUCCESS;\r
}\r
\r
-/**\r
- Initializes all CPU interrupt/exceptions entries and provides the default interrupt/exception handlers.\r
-\r
- Caller should try to get an array of interrupt and/or exception vectors that are in use and need to\r
- persist by EFI_VECTOR_HANDOFF_INFO defined in PI 1.3 specification.\r
- If caller cannot get reserved vector list or it does not exists, set VectorInfo to NULL.\r
- If VectorInfo is not NULL, the exception vectors will be initialized per vector attribute accordingly.\r
-\r
- @param[in] VectorInfo Pointer to reserved vector list.\r
-\r
- @retval EFI_SUCCESS All CPU interrupt/exception entries have been successfully initialized\r
- with default interrupt/exception handlers.\r
- @retval EFI_INVALID_PARAMETER VectorInfo includes the invalid content if VectorInfo is not NULL.\r
- @retval EFI_UNSUPPORTED This function is not supported.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-InitializeCpuInterruptHandlers (\r
- IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL\r
- )\r
-{\r
- return EFI_SUCCESS;\r
-}\r
-\r
/**\r
Registers a function to be called from the processor interrupt handler.\r
\r
interrupt or exception type specified by InterruptType. If InterruptHandler is NULL, then the\r
handler for the processor interrupt or exception type specified by InterruptType is uninstalled.\r
The installed handler is called once for each processor interrupt or exception.\r
- NOTE: This function should be invoked after InitializeCpuExceptionHandlers() or\r
- InitializeCpuInterruptHandlers() invoked, otherwise EFI_UNSUPPORTED returned.\r
+ NOTE: This function should be invoked after InitializeCpuExceptionHandlers() is invoked,\r
+ otherwise EFI_UNSUPPORTED returned.\r
\r
@param[in] InterruptType Defines which interrupt or exception to hook.\r
@param[in] InterruptHandler A pointer to a function of type EFI_CPU_INTERRUPT_HANDLER that is called\r
/** @file\r
CPU DXE Module to produce CPU ARCH Protocol.\r
\r
- Copyright (c) 2008 - 2018, Intel Corporation. All rights reserved.<BR>\r
+ Copyright (c) 2008 - 2022, Intel Corporation. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
#include "CpuMp.h"\r
#include "CpuPageTable.h"\r
\r
+#define CPU_INTERRUPT_NUM 256\r
+\r
//\r
// Global Variables\r
//\r
VOID\r
)\r
{\r
- EFI_STATUS Status;\r
- EFI_VECTOR_HANDOFF_INFO *VectorInfoList;\r
- EFI_VECTOR_HANDOFF_INFO *VectorInfo;\r
+ EFI_STATUS Status;\r
+ EFI_VECTOR_HANDOFF_INFO *VectorInfoList;\r
+ EFI_VECTOR_HANDOFF_INFO *VectorInfo;\r
+ IA32_IDT_GATE_DESCRIPTOR *IdtTable;\r
+ IA32_DESCRIPTOR IdtDescriptor;\r
+ UINTN IdtEntryCount;\r
\r
VectorInfo = NULL;\r
Status = EfiGetSystemConfigurationTable (&gEfiVectorHandoffTableGuid, (VOID **)&VectorInfoList);\r
VectorInfo = VectorInfoList;\r
}\r
\r
- Status = InitializeCpuInterruptHandlers (VectorInfo);\r
+ AsmReadIdtr (&IdtDescriptor);\r
+ IdtEntryCount = (IdtDescriptor.Limit + 1) / sizeof (IA32_IDT_GATE_DESCRIPTOR);\r
+ if (IdtEntryCount < CPU_INTERRUPT_NUM) {\r
+ //\r
+ // Increase Interrupt Descriptor Table and Copy the old IDT table in\r
+ //\r
+ IdtTable = AllocateZeroPool (sizeof (IA32_IDT_GATE_DESCRIPTOR) * CPU_INTERRUPT_NUM);\r
+ ASSERT (IdtTable != NULL);\r
+ CopyMem (IdtTable, (VOID *)IdtDescriptor.Base, sizeof (IA32_IDT_GATE_DESCRIPTOR) * IdtEntryCount);\r
+\r
+ //\r
+ // Load Interrupt Descriptor Table\r
+ //\r
+ IdtDescriptor.Base = (UINTN)IdtTable;\r
+ IdtDescriptor.Limit = (UINT16)(sizeof (IA32_IDT_GATE_DESCRIPTOR) * CPU_INTERRUPT_NUM - 1);\r
+ AsmWriteIdtr (&IdtDescriptor);\r
+ }\r
+\r
+ Status = InitializeCpuExceptionHandlers (VectorInfo);\r
ASSERT_EFI_ERROR (Status);\r
}\r
\r
/** @file\r
CPU exception handler library implemenation for DXE modules.\r
\r
- Copyright (c) 2013 - 2017, Intel Corporation. All rights reserved.<BR>\r
+ Copyright (c) 2013 - 2022, Intel Corporation. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
RESERVED_VECTORS_DATA mReservedVectorsData[CPU_INTERRUPT_NUM];\r
EFI_CPU_INTERRUPT_HANDLER mExternalInterruptHandlerTable[CPU_INTERRUPT_NUM];\r
EXCEPTION_HANDLER_DATA mExceptionHandlerData = {\r
- 0, // To be fixed\r
- 0, // To be fixed\r
+ CPU_INTERRUPT_NUM,\r
+ 0, // To be fixed\r
mReservedVectorsData,\r
mExternalInterruptHandlerTable\r
};\r
return InitializeCpuExceptionHandlersWorker (VectorInfo, &mExceptionHandlerData);\r
}\r
\r
-/**\r
- Initializes all CPU interrupt/exceptions entries and provides the default interrupt/exception handlers.\r
-\r
- Caller should try to get an array of interrupt and/or exception vectors that are in use and need to\r
- persist by EFI_VECTOR_HANDOFF_INFO defined in PI 1.3 specification.\r
- If caller cannot get reserved vector list or it does not exists, set VectorInfo to NULL.\r
- If VectorInfo is not NULL, the exception vectors will be initialized per vector attribute accordingly.\r
-\r
- @param[in] VectorInfo Pointer to reserved vector list.\r
-\r
- @retval EFI_SUCCESS All CPU interrupt/exception entries have been successfully initialized\r
- with default interrupt/exception handlers.\r
- @retval EFI_INVALID_PARAMETER VectorInfo includes the invalid content if VectorInfo is not NULL.\r
- @retval EFI_UNSUPPORTED This function is not supported.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-InitializeCpuInterruptHandlers (\r
- IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL\r
- )\r
-{\r
- EFI_STATUS Status;\r
- IA32_IDT_GATE_DESCRIPTOR *IdtTable;\r
- IA32_DESCRIPTOR IdtDescriptor;\r
- UINTN IdtEntryCount;\r
- EXCEPTION_HANDLER_TEMPLATE_MAP TemplateMap;\r
-\r
- SetMem ((VOID *)mReservedVectorsData, sizeof (RESERVED_VECTORS_DATA) * CPU_INTERRUPT_NUM, 0xff);\r
- if (VectorInfo != NULL) {\r
- Status = ReadAndVerifyVectorInfo (VectorInfo, mReservedVectorsData, CPU_INTERRUPT_NUM);\r
- if (EFI_ERROR (Status)) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- }\r
-\r
- //\r
- // Read IDT descriptor and calculate IDT size\r
- //\r
- AsmReadIdtr (&IdtDescriptor);\r
- IdtEntryCount = (IdtDescriptor.Limit + 1) / sizeof (IA32_IDT_GATE_DESCRIPTOR);\r
- if (IdtEntryCount > CPU_INTERRUPT_NUM) {\r
- IdtEntryCount = CPU_INTERRUPT_NUM;\r
- }\r
-\r
- //\r
- // Create Interrupt Descriptor Table and Copy the old IDT table in\r
- //\r
- IdtTable = AllocateZeroPool (sizeof (IA32_IDT_GATE_DESCRIPTOR) * CPU_INTERRUPT_NUM);\r
- ASSERT (IdtTable != NULL);\r
- CopyMem (IdtTable, (VOID *)IdtDescriptor.Base, sizeof (IA32_IDT_GATE_DESCRIPTOR) * IdtEntryCount);\r
-\r
- AsmGetTemplateAddressMap (&TemplateMap);\r
- ASSERT (TemplateMap.ExceptionStubHeaderSize <= HOOKAFTER_STUB_SIZE);\r
-\r
- mExceptionHandlerData.IdtEntryCount = CPU_INTERRUPT_NUM;\r
- InitializeSpinLock (&mExceptionHandlerData.DisplayMessageSpinLock);\r
-\r
- UpdateIdtTable (IdtTable, &TemplateMap, &mExceptionHandlerData);\r
-\r
- //\r
- // Load Interrupt Descriptor Table\r
- //\r
- IdtDescriptor.Base = (UINTN)IdtTable;\r
- IdtDescriptor.Limit = (UINT16)(sizeof (IA32_IDT_GATE_DESCRIPTOR) * CPU_INTERRUPT_NUM - 1);\r
- AsmWriteIdtr ((IA32_DESCRIPTOR *)&IdtDescriptor);\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
/**\r
Registers a function to be called from the processor interrupt handler.\r
\r
interrupt or exception type specified by InterruptType. If InterruptHandler is NULL, then the\r
handler for the processor interrupt or exception type specified by InterruptType is uninstalled.\r
The installed handler is called once for each processor interrupt or exception.\r
- NOTE: This function should be invoked after InitializeCpuExceptionHandlers() or\r
- InitializeCpuInterruptHandlers() invoked, otherwise EFI_UNSUPPORTED returned.\r
+ NOTE: This function should be invoked after InitializeCpuExceptionHandlers() is invoked,\r
+ otherwise EFI_UNSUPPORTED returned.\r
\r
@param[in] InterruptType Defines which interrupt or exception to hook.\r
@param[in] InterruptHandler A pointer to a function of type EFI_CPU_INTERRUPT_HANDLER that is called\r
/** @file\r
CPU exception handler library implementation for PEIM module.\r
\r
-Copyright (c) 2016 - 2018, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2016 - 2022, Intel Corporation. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
ExceptionHandlerData = AllocatePool (sizeof (EXCEPTION_HANDLER_DATA));\r
ASSERT (ExceptionHandlerData != NULL);\r
+ ExceptionHandlerData->IdtEntryCount = CPU_EXCEPTION_NUM;\r
ExceptionHandlerData->ReservedVectors = ReservedVectors;\r
ExceptionHandlerData->ExternalInterruptHandler = NULL;\r
InitializeSpinLock (&ExceptionHandlerData->DisplayMessageSpinLock);\r
return EFI_SUCCESS;\r
}\r
\r
-/**\r
- Initializes all CPU interrupt/exceptions entries and provides the default interrupt/exception handlers.\r
-\r
- Caller should try to get an array of interrupt and/or exception vectors that are in use and need to\r
- persist by EFI_VECTOR_HANDOFF_INFO defined in PI 1.3 specification.\r
- If caller cannot get reserved vector list or it does not exists, set VectorInfo to NULL.\r
- If VectorInfo is not NULL, the exception vectors will be initialized per vector attribute accordingly.\r
-\r
- @param[in] VectorInfo Pointer to reserved vector list.\r
-\r
- @retval EFI_SUCCESS All CPU interrupt/exception entries have been successfully initialized\r
- with default interrupt/exception handlers.\r
- @retval EFI_INVALID_PARAMETER VectorInfo includes the invalid content if VectorInfo is not NULL.\r
- @retval EFI_UNSUPPORTED This function is not supported.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-InitializeCpuInterruptHandlers (\r
- IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL\r
- )\r
-{\r
- return EFI_UNSUPPORTED;\r
-}\r
-\r
-/**\r
- Registers a function to be called from the processor interrupt handler.\r
-\r
- This function registers and enables the handler specified by InterruptHandler for a processor\r
- interrupt or exception type specified by InterruptType. If InterruptHandler is NULL, then the\r
- handler for the processor interrupt or exception type specified by InterruptType is uninstalled.\r
- The installed handler is called once for each processor interrupt or exception.\r
- NOTE: This function should be invoked after InitializeCpuExceptionHandlers() or\r
- InitializeCpuInterruptHandlers() invoked, otherwise EFI_UNSUPPORTED returned.\r
-\r
- @param[in] InterruptType Defines which interrupt or exception to hook.\r
- @param[in] InterruptHandler A pointer to a function of type EFI_CPU_INTERRUPT_HANDLER that is called\r
- when a processor interrupt occurs. If this parameter is NULL, then the handler\r
- will be uninstalled.\r
-\r
- @retval EFI_SUCCESS The handler for the processor interrupt was successfully installed or uninstalled.\r
- @retval EFI_ALREADY_STARTED InterruptHandler is not NULL, and a handler for InterruptType was\r
- previously installed.\r
- @retval EFI_INVALID_PARAMETER InterruptHandler is NULL, and a handler for InterruptType was not\r
- previously installed.\r
- @retval EFI_UNSUPPORTED The interrupt specified by InterruptType is not supported,\r
- or this function is not supported.\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-RegisterCpuInterruptHandler (\r
- IN EFI_EXCEPTION_TYPE InterruptType,\r
- IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler\r
- )\r
-{\r
- return EFI_UNSUPPORTED;\r
-}\r
-\r
/**\r
Initializes all CPU exceptions entries with optional extra initializations.\r
\r
/** @file\r
CPU Exception Library provides PEI/DXE/SMM CPU common exception handler.\r
\r
-Copyright (c) 2012 - 2018, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2012 - 2022, Intel Corporation. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
RESERVED_VECTORS_DATA *ReservedVectors;\r
\r
ReservedVectors = ExceptionHandlerData->ReservedVectors;\r
- SetMem ((VOID *)ReservedVectors, sizeof (RESERVED_VECTORS_DATA) * CPU_EXCEPTION_NUM, 0xff);\r
+ SetMem ((VOID *)ReservedVectors, sizeof (RESERVED_VECTORS_DATA) * ExceptionHandlerData->IdtEntryCount, 0xff);\r
if (VectorInfo != NULL) {\r
- Status = ReadAndVerifyVectorInfo (VectorInfo, ReservedVectors, CPU_EXCEPTION_NUM);\r
+ Status = ReadAndVerifyVectorInfo (VectorInfo, ReservedVectors, ExceptionHandlerData->IdtEntryCount);\r
if (EFI_ERROR (Status)) {\r
return EFI_INVALID_PARAMETER;\r
}\r
}\r
\r
//\r
- // Read IDT descriptor and calculate IDT size\r
+ // Setup the exception handlers according to IDT size, but no more than\r
+ // ExceptionHandlerData->IdtEntryCount (32 in PEI and SMM, 256 in DXE) handlers.\r
//\r
AsmReadIdtr (&IdtDescriptor);\r
- IdtEntryCount = (IdtDescriptor.Limit + 1) / sizeof (IA32_IDT_GATE_DESCRIPTOR);\r
- if (IdtEntryCount > CPU_EXCEPTION_NUM) {\r
- //\r
- // CPU exception library only setup CPU_EXCEPTION_NUM exception handler at most\r
- //\r
- IdtEntryCount = CPU_EXCEPTION_NUM;\r
- }\r
+ IdtEntryCount = (IdtDescriptor.Limit + 1) / sizeof (IA32_IDT_GATE_DESCRIPTOR);\r
+ ExceptionHandlerData->IdtEntryCount = MIN (IdtEntryCount, ExceptionHandlerData->IdtEntryCount);\r
\r
IdtTable = (IA32_IDT_GATE_DESCRIPTOR *)IdtDescriptor.Base;\r
AsmGetTemplateAddressMap (&TemplateMap);\r
ASSERT (TemplateMap.ExceptionStubHeaderSize <= HOOKAFTER_STUB_SIZE);\r
\r
- ExceptionHandlerData->IdtEntryCount = IdtEntryCount;\r
UpdateIdtTable (IdtTable, &TemplateMap, ExceptionHandlerData);\r
\r
return EFI_SUCCESS;\r
/** @file\r
CPU exception handler library implemenation for SEC/PEIM modules.\r
\r
-Copyright (c) 2012 - 2018, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2012 - 2022, Intel Corporation. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
return EFI_SUCCESS;\r
}\r
\r
-/**\r
- Initializes all CPU interrupt/exceptions entries and provides the default interrupt/exception handlers.\r
-\r
- Caller should try to get an array of interrupt and/or exception vectors that are in use and need to\r
- persist by EFI_VECTOR_HANDOFF_INFO defined in PI 1.3 specification.\r
- If caller cannot get reserved vector list or it does not exists, set VectorInfo to NULL.\r
- If VectorInfo is not NULL, the exception vectors will be initialized per vector attribute accordingly.\r
-\r
- @param[in] VectorInfo Pointer to reserved vector list.\r
-\r
- @retval EFI_SUCCESS All CPU interrupt/exception entries have been successfully initialized\r
- with default interrupt/exception handlers.\r
- @retval EFI_INVALID_PARAMETER VectorInfo includes the invalid content if VectorInfo is not NULL.\r
- @retval EFI_UNSUPPORTED This function is not supported.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-InitializeCpuInterruptHandlers (\r
- IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL\r
- )\r
-{\r
- return EFI_UNSUPPORTED;\r
-}\r
-\r
/**\r
Registers a function to be called from the processor interrupt handler.\r
\r
interrupt or exception type specified by InterruptType. If InterruptHandler is NULL, then the\r
handler for the processor interrupt or exception type specified by InterruptType is uninstalled.\r
The installed handler is called once for each processor interrupt or exception.\r
- NOTE: This function should be invoked after InitializeCpuExceptionHandlers() or\r
- InitializeCpuInterruptHandlers() invoked, otherwise EFI_UNSUPPORTED returned.\r
+ NOTE: This function should be invoked after InitializeCpuExceptionHandlers() is invoked,\r
+ otherwise EFI_UNSUPPORTED returned.\r
\r
@param[in] InterruptType Defines which interrupt or exception to hook.\r
@param[in] InterruptHandler A pointer to a function of type EFI_CPU_INTERRUPT_HANDLER that is called\r
/** @file\r
CPU exception handler library implementation for SMM modules.\r
\r
- Copyright (c) 2013 - 2017, Intel Corporation. All rights reserved.<BR>\r
+ Copyright (c) 2013 - 2022, Intel Corporation. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
RESERVED_VECTORS_DATA mReservedVectorsData[CPU_EXCEPTION_NUM];\r
EFI_CPU_INTERRUPT_HANDLER mExternalInterruptHandlerTable[CPU_EXCEPTION_NUM];\r
EXCEPTION_HANDLER_DATA mExceptionHandlerData = {\r
- 0, // To be fixed\r
- 0, // To be fixed\r
+ CPU_EXCEPTION_NUM,\r
+ 0, // To be fixed\r
mReservedVectorsData,\r
mExternalInterruptHandlerTable\r
};\r
return InitializeCpuExceptionHandlersWorker (VectorInfo, &mExceptionHandlerData);\r
}\r
\r
-/**\r
- Initializes all CPU interrupt/exceptions entries and provides the default interrupt/exception handlers.\r
-\r
- Caller should try to get an array of interrupt and/or exception vectors that are in use and need to\r
- persist by EFI_VECTOR_HANDOFF_INFO defined in PI 1.3 specification.\r
- If caller cannot get reserved vector list or it does not exists, set VectorInfo to NULL.\r
- If VectorInfo is not NULL, the exception vectors will be initialized per vector attribute accordingly.\r
-\r
- @param[in] VectorInfo Pointer to reserved vector list.\r
-\r
- @retval EFI_SUCCESS All CPU interrupt/exception entries have been successfully initialized\r
- with default interrupt/exception handlers.\r
- @retval EFI_INVALID_PARAMETER VectorInfo includes the invalid content if VectorInfo is not NULL.\r
- @retval EFI_UNSUPPORTED This function is not supported.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-InitializeCpuInterruptHandlers (\r
- IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL\r
- )\r
-{\r
- return EFI_UNSUPPORTED;\r
-}\r
-\r
/**\r
Registers a function to be called from the processor interrupt handler.\r
\r
interrupt or exception type specified by InterruptType. If InterruptHandler is NULL, then the\r
handler for the processor interrupt or exception type specified by InterruptType is uninstalled.\r
The installed handler is called once for each processor interrupt or exception.\r
- NOTE: This function should be invoked after InitializeCpuExceptionHandlers() or\r
- InitializeCpuInterruptHandlers() invoked, otherwise EFI_UNSUPPORTED returned.\r
+ NOTE: This function should be invoked after InitializeCpuExceptionHandlers() is invoked,\r
+ otherwise EFI_UNSUPPORTED returned.\r
\r
@param[in] InterruptType Defines which interrupt or exception to hook.\r
@param[in] InterruptHandler A pointer to a function of type EFI_CPU_INTERRUPT_HANDLER that is called\r
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