diff options
Diffstat (limited to 'StandaloneMmPkg/Library')
| -rw-r--r-- | StandaloneMmPkg/Library/VariableMmDependency/VariableMmDependency.c | 53 | ||||
| -rw-r--r-- | StandaloneMmPkg/Library/VariableMmDependency/VariableMmDependency.inf | 46 |
2 files changed, 99 insertions, 0 deletions
diff --git a/StandaloneMmPkg/Library/VariableMmDependency/VariableMmDependency.c b/StandaloneMmPkg/Library/VariableMmDependency/VariableMmDependency.c new file mode 100644 index 0000000000..f0a46b2516 --- /dev/null +++ b/StandaloneMmPkg/Library/VariableMmDependency/VariableMmDependency.c @@ -0,0 +1,53 @@ +/** @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.
+
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php.
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <Library/DebugLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+
+/**
+ The constructor function installs variable arch protocol and variable
+ write arch protocol to StandaloneMM runtime variable service
+
+ @param ImageHandle The firmware allocated handle for the EFI image.
+ @param SystemTable A pointer to the Management mode System Table.
+
+ @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+VariableMmDependencyLibConstructor (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ EFI_HANDLE Handle;
+
+ Handle = NULL;
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &Handle,
+ &gEfiSmmVariableProtocolGuid,
+ NULL,
+ &gSmmVariableWriteGuid,
+ NULL,
+ NULL
+ );
+ ASSERT_EFI_ERROR (Status);
+ return EFI_SUCCESS;
+}
diff --git a/StandaloneMmPkg/Library/VariableMmDependency/VariableMmDependency.inf b/StandaloneMmPkg/Library/VariableMmDependency/VariableMmDependency.inf new file mode 100644 index 0000000000..e71c44d4c8 --- /dev/null +++ b/StandaloneMmPkg/Library/VariableMmDependency/VariableMmDependency.inf @@ -0,0 +1,46 @@ +## @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.
+# This program and the accompanying materials
+# are licensed and made available under the terms and conditions of the BSD License
+# which accompanies this distribution. The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+##
+
+[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
|