ArmPkg: Add ArmFfaLib used in StandaloneMm

Add ArmFfaLib used in StandaloneMmCore/StandaloneMm Driver.

Continuous-integration-options: PatchCheck.ignore-multi-package
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>

ArmPkg/ArmPkg.dsc

@@ -136,6 +136,8 @@
   ArmPkg/Library/ArmTransferListLib/ArmTransferListLib.inf
   ArmPkg/Library/ArmFfaLib/ArmFfaPeiLib.inf
   ArmPkg/Library/ArmFfaLib/ArmFfaDxeLib.inf
+  ArmPkg/Library/ArmFfaLib/ArmFfaStandaloneMmCoreLib.inf
+  ArmPkg/Library/ArmFfaLib/ArmFfaStandaloneMmLib.inf
 
   ArmPkg/Filesystem/SemihostFs/SemihostFs.inf
 

ArmPkg/Library/ArmFfaLib/ArmFfaStandaloneMmCoreLib.inf

@@ -0,0 +1,36 @@
+## @file
+#  Provides FF-A ABI Library used in StandaloneMmCore.
+#
+#  Copyright (c) 2024, Arm Limited. All rights reserved.<BR>
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+
+[Defines]
+  INF_VERSION                    = 0x0001001B
+  BASE_NAME                      = ArmFfaStandaloneMmCoreLib
+  FILE_GUID                      = 80d2c4dc-5f0b-11ef-bc86-43b3fb486d6d
+  MODULE_TYPE                    = MM_CORE_STANDALONE
+  VERSION_STRING                 = 1.0
+  PI_SPECIFICATION_VERSION       = 0x00010032
+  LIBRARY_CLASS                  = ArmFfaLib
+  CONSTRUCTOR                    = ArmFfaStandaloneMmLibConstructor
+
+[Sources]
+  ArmFfaCommon.h
+  ArmFfaCommon.c
+  ArmFfaStandaloneMmLib.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  ArmPkg/ArmPkg.dec
+
+[LibraryClasses]
+  ArmSmcLib
+  ArmSvcLib
+  BaseLib
+  BaseMemoryLib
+  DebugLib
+
+[Pcd]
+  gArmTokenSpaceGuid.PcdFfaLibConduitSmc

ArmPkg/Library/ArmFfaLib/ArmFfaStandaloneMmLib.c

@@ -0,0 +1,72 @@
+/** @file
+  Arm Ffa library code for StandaloneMmCore.
+
+  Copyright (c) 2024, Arm Limited. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+   @par Glossary:
+     - FF-A - Firmware Framework for Arm A-profile
+
+   @par Reference(s):
+     - Arm Firmware Framework for Arm A-Profile [https://developer.arm.com/documentation/den0077/latest]
+
+**/
+
+#include <PiMm.h>
+
+#include <Library/ArmLib.h>
+#include <Library/ArmSmcLib.h>
+#include <Library/ArmFfaLib.h>
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+
+#include "ArmFfaCommon.h"
+
+/**
+  Get mapped Rx/Tx buffers.
+
+  @param [out]   TxBuffer         Address of TxBuffer
+  @param [out]   TxBufferSize     Size of TxBuffer
+  @param [out]   RxBuffer         Address of RxBuffer
+  @param [out]   RxBufferSize     Size of RxBuffer
+
+  @retval EFI_SUCCESS
+  @retval Others             Error.
+
+**/
+EFI_STATUS
+EFIAPI
+ArmFfaLibGetRxTxBuffers (
+  OUT VOID    **TxBuffer,
+  OUT UINT64  *TxBufferSize,
+  OUT VOID    **RxBuffer,
+  OUT UINT64  *RxBufferSize
+  )
+{
+  /*
+   * StandaloneMm doesn't use Rx/Tx buffer.
+   * So, return EFI_UNSUPPORTED.
+   */
+  return EFI_UNSUPPORTED;
+}
+
+/**
+  ArmFfaLib Constructor.
+
+  @param  [in]  ImageHandle     The firmware allocated handle for the EFI image
+  @param  [in]  MmSystemTable   A pointer to the Management mode System Table
+
+  @retval EFI_SUCCESS            Success
+  @retval Others                 Error
+
+**/
+EFI_STATUS
+EFIAPI
+ArmFfaStandaloneMmLibConstructor (
+  IN EFI_HANDLE           ImageHandle,
+  IN EFI_MM_SYSTEM_TABLE  *MmSystemTable
+  )
+{
+  return ArmFfaLibCommonInit ();
+}

ArmPkg/Library/ArmFfaLib/ArmFfaStandaloneMmLib.inf

@@ -0,0 +1,37 @@
+## @file
+#  Provides FF-A ABI Library used in StandaloneMmCore.
+#
+#  Copyright (c) 2024, Arm Limited. All rights reserved.<BR>
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+
+[Defines]
+  INF_VERSION                    = 0x0001001B
+  BASE_NAME                      = ArmFfaStandaloneMmLib
+  FILE_GUID                      = e07db74e-6a95-11ef-97ea-c7a6149e81c9
+  MODULE_TYPE                    = MM_STANDALONE
+  VERSION_STRING                 = 1.0
+  PI_SPECIFICATION_VERSION       = 0x00010032
+  LIBRARY_CLASS                  = ArmFfaLib
+  CONSTRUCTOR                    = ArmFfaStandaloneMmLibConstructor
+
+[Sources]
+  ArmFfaCommon.h
+  ArmFfaCommon.c
+  ArmFfaStandaloneMmLib.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  ArmPkg/ArmPkg.dec
+
+[LibraryClasses]
+  ArmSmcLib
+  ArmSvcLib
+  BaseLib
+  BaseMemoryLib
+  DebugLib
+
+[Pcd]
+  gArmTokenSpaceGuid.PcdFfaLibConduitSmc
+

StandaloneMmPkg/StandaloneMmPkg.dsc

@@ -82,6 +82,7 @@
 
 [LibraryClasses.common.MM_CORE_STANDALONE]
   HobLib|StandaloneMmPkg/Library/StandaloneMmCoreHobLib/StandaloneMmCoreHobLib.inf
+  ArmFfaLib|ArmPkg/Library/ArmFfaLib/ArmFfaStandaloneMmCoreLib.inf
 
 [LibraryClasses.common.MM_STANDALONE]
   MemoryAllocationLib|StandaloneMmPkg/Library/StandaloneMmMemoryAllocationLib/StandaloneMmMemoryAllocationLib.inf