Functions | |
EFI_STATUS EFIAPI | InitializeCpuExceptionHandlers (IN EFI_VECTOR_HANDOFF_INFO *VectorInfo) |
EFI_STATUS EFIAPI | InitializeCpuInterruptHandlers (IN EFI_VECTOR_HANDOFF_INFO *VectorInfo) |
EFI_STATUS EFIAPI | RegisterCpuInterruptHandler (IN EFI_EXCEPTION_TYPE InterruptType, IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler) |
Copyright (c) 2012 - 2013, Intel Corporation. All rights reserved.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
EFI_STATUS EFIAPI InitializeCpuExceptionHandlers | ( | IN EFI_VECTOR_HANDOFF_INFO * | VectorInfo | ) |
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.
[in] | VectorInfo | Pointer to reserved vector list. |
EFI_SUCCESS | CPU Exception Entries have been successfully initialized with default exception handlers. | |
EFI_INVALID_PARAMETER | VectorInfo includes the invalid content if VectorInfo is not NULL. | |
EFI_UNSUPPORTED | This function is not supported. |
EFI_STATUS EFIAPI InitializeCpuInterruptHandlers | ( | IN EFI_VECTOR_HANDOFF_INFO * | VectorInfo | ) |
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.
[in] | VectorInfo | Pointer to reserved vector list. |
EFI_SUCCESS | All CPU interrupt/exception entries have been successfully initialized with default interrupt/exception handlers. | |
EFI_INVALID_PARAMETER | VectorInfo includes the invalid content if VectorInfo is not NULL. | |
EFI_UNSUPPORTED | This function is not supported. |
EFI_STATUS EFIAPI RegisterCpuInterruptHandler | ( | IN EFI_EXCEPTION_TYPE | InterruptType, | |
IN EFI_CPU_INTERRUPT_HANDLER | InterruptHandler | |||
) |
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.
[in] | InterruptType | Defines which interrupt or exception to hook. |
[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. |
EFI_SUCCESS | The handler for the processor interrupt was successfully installed or uninstalled. | |
EFI_ALREADY_STARTED | InterruptHandler is not NULL, and a handler for InterruptType was previously installed. | |
EFI_INVALID_PARAMETER | InterruptHandler is NULL, and a handler for InterruptType was not previously installed. | |
EFI_UNSUPPORTED | The interrupt specified by InterruptType is not supported, or this function is not supported. |