_EFI_CPU_ARCH_PROTOCOL Struct Reference


Data Fields

EFI_CPU_FLUSH_DATA_CACHE FlushDataCache
EFI_CPU_ENABLE_INTERRUPT EnableInterrupt
EFI_CPU_DISABLE_INTERRUPT DisableInterrupt
EFI_CPU_GET_INTERRUPT_STATE GetInterruptState
EFI_CPU_INIT Init
EFI_CPU_REGISTER_INTERRUPT_HANDLER RegisterInterruptHandler
EFI_CPU_GET_TIMER_VALUE GetTimerValue
EFI_CPU_SET_MEMORY_ATTRIBUTES SetMemoryAttributes
UINT32 NumberOfTimers
UINT32 DmaBufferAlignment

Detailed Description

The EFI_CPU_ARCH_PROTOCOL is used to abstract processor-specific functions from the DXE Foundation. This includes flushing caches, enabling and disabling interrupts, hooking interrupt vectors and exception vectors, reading internal processor timers, resetting the processor, and determining the processor frequency.

Field Documentation

The size, in bytes, of the alignment required for DMA buffer allocations. This is typically the size of the largest data cache line in the platform. The value in this field is a constant that must not be modified after the CPU Architectural Protocol is installed. All consumers must treat this as a read-only field.

The number of timers that are available in a processor. The value in this field is a constant that must not be modified after the CPU Architectural Protocol is installed. All consumers must treat this as a read-only field.


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