ef05955996
A PRM Handler has a 1-to-1 mapping to the corresponding _DSM method. The UUID of the _DSM Method will be passed by the ASL code to the OpRegionHandler which will look up the PRMT Table to extract the pointer of the corresponding PRM Handler. PRM loader pre-builds an SSDT that includes this PRM operation region. In boot time, the PRM loader will load and publish this SSDT, so that in OS runtime ACPI _DSM can invoke the PRM handler by pass the UUID to PRM operation region. The pre-build SSDT also includes a PRMT device as a Sample ACPI _DSM to invoke PRM handler. Cc: Andrew Fish <afish@apple.com> Cc: Kang Gao <kang.gao@intel.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Cc: Michael Kubacki <michael.kubacki@microsoft.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Benjamin You <benjamin.you@intel.com> Cc: Liu Yun <yun.y.liu@intel.com> Cc: Ankit Sinha <ankit.sinha@intel.com> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com> Signed-off-by: Liu Yun <yun.y.liu@intel.com> Acked-by: Michael D Kinney <michael.d.kinney@intel.com> Acked-by: Liming Gao <gaoliming@byosoft.com.cn> Acked-by: Leif Lindholm <quic_llindhol@quicinc.com> Reviewed-by: Ankit Sinha <ankit.sinha@intel.com>
64 lines
1.6 KiB
INI
64 lines
1.6 KiB
INI
## @file
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# PRM Loader Driver
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#
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# This driver discovers PRM Modules loaded in memory and places those modules and the
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# PRM handlers within those modules into a PRMT ACPI table such that the handlers are
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# made available for invocation in the OS.
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#
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# Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
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# Copyright (c) Microsoft Corporation
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#
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# SPDX-License-Identifier: BSD-2-Clause-Patent
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#
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##
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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = PrmLoaderDxe
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FILE_GUID = 226A500A-E14F-414A-A956-40E5762D3D1E
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MODULE_TYPE = DXE_DRIVER
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VERSION_STRING = 1.0
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ENTRY_POINT = PrmLoaderEntryPoint
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[Sources]
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PrmAcpiTable.h
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PrmLoader.h
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PrmLoaderDxe.c
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Prm.asl
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[Packages]
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MdePkg/MdePkg.dec
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MdeModulePkg/MdeModulePkg.dec
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PrmPkg/PrmPkg.dec
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[Guids]
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gEfiEndOfDxeEventGroupGuid
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[LibraryClasses]
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BaseLib
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BaseMemoryLib
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DebugLib
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MemoryAllocationLib
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PeCoffLib
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PrmContextBufferLib
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UefiBootServicesTableLib
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UefiDriverEntryPoint
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UefiLib
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DxeServicesLib
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PcdLib
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[Pcd]
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gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiDefaultOemId ## CONSUMES
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gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiDefaultOemTableId ## CONSUMES
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gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiDefaultOemRevision ## CONSUMES
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gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiDefaultCreatorId ## CONSUMES
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gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiDefaultCreatorRevision ## CONSUMES
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[Protocols]
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gEfiAcpiTableProtocolGuid
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gEfiLoadedImageProtocolGuid
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gPrmConfigProtocolGuid
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[Depex]
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TRUE
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