mirror of https://github.com/acidanthera/audk.git
83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
/** @file
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Private header with declarations and definitions specific to the MM Standalone
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CPU driver
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Copyright (c) 2017 - 2021, Arm Limited. All rights reserved.
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _ARM_TF_CPU_DRIVER_H_
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#define _ARM_TF_CPU_DRIVER_H_
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#include <Protocol/MmCommunication2.h>
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#include <Protocol/MmConfiguration.h>
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#include <Protocol/MmCpu.h>
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#include <Guid/MpInformation.h>
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//
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// CPU driver initialization specific declarations
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//
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extern EFI_MM_SYSTEM_TABLE *mMmst;
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//
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// CPU State Save protocol specific declarations
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//
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extern EFI_MM_CPU_PROTOCOL mMmCpuState;
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//
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// MM event handling specific declarations
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//
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extern EFI_MM_COMMUNICATE_HEADER **PerCpuGuidedEventContext;
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extern EFI_MMRAM_DESCRIPTOR mNsCommBuffer;
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extern EFI_MMRAM_DESCRIPTOR mSCommBuffer;
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extern MP_INFORMATION_HOB_DATA *mMpInformationHobData;
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extern EFI_MM_CONFIGURATION_PROTOCOL mMmConfig;
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/**
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The PI Standalone MM entry point for the TF-A CPU driver.
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@param [in] EventId The event Id.
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@param [in] CpuNumber The CPU number.
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@param [in] NsCommBufferAddr Address of the NS common buffer.
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@retval EFI_SUCCESS Success.
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@retval EFI_INVALID_PARAMETER A parameter was invalid.
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@retval EFI_ACCESS_DENIED Access not permitted.
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@retval EFI_OUT_OF_RESOURCES Out of resources.
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@retval EFI_UNSUPPORTED Operation not supported.
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**/
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EFI_STATUS
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PiMmStandaloneArmTfCpuDriverEntry (
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IN UINTN EventId,
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IN UINTN CpuNumber,
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IN UINTN NsCommBufferAddr
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);
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/**
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This function is the main entry point for an MM handler dispatch
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or communicate-based callback.
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@param DispatchHandle The unique handle assigned to this handler by
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MmiHandlerRegister().
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@param Context Points to an optional handler context which was
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specified when the handler was registered.
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@param CommBuffer A pointer to a collection of data in memory that will
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be conveyed from a non-MM environment into an
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MM environment.
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@param CommBufferSize The size of the CommBuffer.
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@return Status Code
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**/
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EFI_STATUS
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EFIAPI
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PiMmCpuTpFwRootMmiHandler (
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IN EFI_HANDLE DispatchHandle,
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IN CONST VOID *Context OPTIONAL,
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IN OUT VOID *CommBuffer OPTIONAL,
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IN OUT UINTN *CommBufferSize OPTIONAL
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);
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#endif
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