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StandaloneMmCpu driver is only used for Arm architecture and StandaloneMmCoreEntryPointLib for Arm has specific implementation with StandaloneMmCpu driver. Move StandaloneMmCpu Driver and StandaloneMmCoreEntryPointLib for Arm to ArmPkg. Continuous-integration-options: PatchCheck.ignore-multi-package Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
61 lines
2.0 KiB
C
61 lines
2.0 KiB
C
/** @file
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This file describes the PiMm Cpu Driver Entry Point Protocol.
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the protocol is for defining handler for mm communication request event
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according to cpu driver.
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Copyright (c) 2024, Arm Limited. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef PI_MM_CPU_DRIVER_EP_H_
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#define PI_MM_CPU_DRIVER_EP_H_
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#include <PiMm.h>
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#define EDKII_PI_MM_CPU_DRIVER_EP_GUID { \
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0x6ecbd5a1, 0xc0f8, 0x4702, { 0x83, 0x01, 0x4f, 0xc2, 0xc5, 0x47, 0x0a, 0x51 } \
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}
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/**
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The PI Standalone MM entry point for handling mm communication request
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Here is an example of how the EDKII_PI_MM_CPU_DRIVER_EP_PROTOCOL
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is utilized in ARM:
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1. StandaloneMmCoreEntryPoint loads StandaloneMmCore.
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2. StandaloneMmCore dispatches all MM drivers,
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including the StandaloneMmCpu driver.
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3. The StandaloneMmCpu driver declares its MMI CPU entry point through
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the PI_MM_CPU_DRIVER_EP_PROTOCOL.
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4. After all drivers have been dispatched,
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StandaloneMmCoreEntryPoint retrieves the MMI CPU entry point
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by locating the protocol.
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5. The DelegatedEventLoop then calls the MM CPU entry point.
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See StandaloneMmPkg/StandaloneMmCoreEntryPoint/Arm/StandaloneMmCoreEntryPoint.c
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@param [in] EventId The event Id based on firmware.
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@param [in] CommBufferAddr Address of the communication 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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typedef
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EFI_STATUS
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(EFIAPI *EDKII_PI_MM_CPU_DRIVER_ENTRYPOINT)(
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IN UINTN EventId,
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IN UINTN CommBufferAddr
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);
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typedef struct _EDKII_PI_MM_CPU_DRIVER_EP_PROTOCOL EDKII_PI_MM_CPU_DRIVER_EP_PROTOCOL;
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struct _EDKII_PI_MM_CPU_DRIVER_EP_PROTOCOL {
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EDKII_PI_MM_CPU_DRIVER_ENTRYPOINT PiMmCpuDriverEntryPoint;
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};
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extern EFI_GUID gEdkiiPiMmCpuDriverEpProtocolGuid;
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#endif
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