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audk/StandaloneMmPkg/Library/VariableMmDependency/VariableMmDependency.inf

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StandaloneMmPkg/Library: Install Variable Arch Protocol In a system implementing the variable store in MM, there are no variable arch protocol and variable write arch protocol installed into the DXE_SMM protocol database. On such systems, it is not required to locate these protocols by the DXE runtime variable drivers because it can be assumed that these protocols are already installed in the MM context. But then such an implementation will deviate from the existing traditional MM based variable driver implementation. So in order to maintain consistency with the traditional MM variable driver implementation, allow platforms to install these protocols into the DXE protocol database but these protocol will not be consumed by non-secure variable service runtime driver. The Platform which uses StandaloneMM based secure variable storage have to include this library Example In edk2-platforms/Platform/ARM/SgiPkg/SgiPlatform.dsc ArmPkg/Drivers/MmCommunicationDxe/MmCommunication.inf { <LibraryClasses> NULL|StandaloneMmPkg/Library/VariableMmDependency/VariableMmDependency.inf } Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Jagadeesh Ujja <jagadeesh.ujja@arm.com> Acked-by "Yao, Jiewen" <jiewen.yao@intel.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2019-03-04 09:53:59 +01:00
## @file
# Runtime DXE part corresponding to StanaloneMM variable module.
#
# This module installs variable arch protocol and variable write arch protocol
# to StandaloneMM runtime variable service.
#
# Copyright (c) 2019, ARM Ltd. All rights reserved.
StandaloneMmPkg: Replace BSD License with BSD+Patent License https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Jiewen Yao <Jiewen.yao@intel.com>
2019-04-04 01:07:12 +02:00
# SPDX-License-Identifier: BSD-2-Clause-Patent
StandaloneMmPkg/Library: Install Variable Arch Protocol In a system implementing the variable store in MM, there are no variable arch protocol and variable write arch protocol installed into the DXE_SMM protocol database. On such systems, it is not required to locate these protocols by the DXE runtime variable drivers because it can be assumed that these protocols are already installed in the MM context. But then such an implementation will deviate from the existing traditional MM based variable driver implementation. So in order to maintain consistency with the traditional MM variable driver implementation, allow platforms to install these protocols into the DXE protocol database but these protocol will not be consumed by non-secure variable service runtime driver. The Platform which uses StandaloneMM based secure variable storage have to include this library Example In edk2-platforms/Platform/ARM/SgiPkg/SgiPlatform.dsc ArmPkg/Drivers/MmCommunicationDxe/MmCommunication.inf { <LibraryClasses> NULL|StandaloneMmPkg/Library/VariableMmDependency/VariableMmDependency.inf } Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Jagadeesh Ujja <jagadeesh.ujja@arm.com> Acked-by "Yao, Jiewen" <jiewen.yao@intel.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2019-03-04 09:53:59 +01:00
#
##
[Defines]
INF_VERSION = 0x0001001A
BASE_NAME = VariableMmDependency
FILE_GUID = 64BC4129-778E-4867-BA07-13999A4DEC3F
MODULE_TYPE = DXE_DRIVER
LIBRARY_CLASS = NULL
CONSTRUCTOR = VariableMmDependencyLibConstructor
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = AARCH64
#
#
[Sources]
VariableMmDependency.c
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
[Protocols]
gEfiSmmVariableProtocolGuid ## PRODUCES
[Guids]
gSmmVariableWriteGuid ## PRODUCES ## GUID # Install protocol
[Depex]
TRUE