1 files changed, 89 insertions, 0 deletions
diff --git a/MdeModulePkg/Library/ArmFfaLib/ArmFfaCommon.h b/MdeModulePkg/Library/ArmFfaLib/ArmFfaCommon.h
new file mode 100644
index 0000000..1994dd8
--- /dev/null
+++ b/MdeModulePkg/Library/ArmFfaLib/ArmFfaCommon.h
@@ -0,0 +1,89 @@
+/** @file
+  Arm FF-A ns common library Header file
+
+  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
+     - spmc - Secure Partition Manager Core
+     - spmd - Secure Partition Manager Dispatcher
+
+  @par Reference(s):
+     - Arm Firmware Framework for Arm A-Profile [https://developer.arm.com/documentation/den0077/latest]
+
+**/
+
+#ifndef ARM_FFA_COMMON_LIB_H_
+#define ARM_FFA_COMMON_LIB_H_
+
+#include <Library/ArmFfaLib.h>
+
+extern BOOLEAN  gFfaSupported;
+extern UINT16   gPartId;
+
+/**
+  Convert FfArgs to EFI_STATUS.
+
+  @param [in] FfaArgs            Ffa arguments
+
+  @retval EFI_STATUS             return value correspond EFI_STATUS to FfaStatus
+
+**/
+EFI_STATUS
+EFIAPI
+FfaArgsToEfiStatus (
+  IN ARM_FFA_ARGS  *FfaArgs
+  );
+
+/**
+  Common ArmFfaLib Constructor.
+
+  @retval EFI_SUCCESS
+  @retval Others                  Error
+
+**/
+EFI_STATUS
+EFIAPI
+ArmFfaLibCommonInit (
+  IN VOID
+  );
+
+/**
+  Get first Rx/Tx Buffer allocation hob.
+  If UseGuid is TRUE, BufferAddr and BufferSize parameters are ignored.
+
+  @param[in]  BufferAddr       Buffer address
+  @param[in]  BufferSize       Buffer Size
+  @param[in]  UseGuid          Find MemoryAllocationHob using gArmFfaRxTxBufferInfoGuid.
+
+  @retval     NULL             Not found
+  @retval     Other            MemoryAllocationHob related to Rx/Tx buffer
+
+**/
+EFI_HOB_MEMORY_ALLOCATION *
+EFIAPI
+GetRxTxBufferAllocationHob (
+  IN EFI_PHYSICAL_ADDRESS  BufferAddr,
+  IN UINT64                BufferSize,
+  IN BOOLEAN               UseGuid
+  );
+
+/**
+  Get Rx/Tx buffer MinSizeAndAign and MaxSize
+
+  @param[out] MinSizeAndAlign  Minimum size of Buffer.
+
+  @retval EFI_SUCCESS
+  @retval EFI_UNSUPPORTED          Wrong min size received from SPMC
+  @retval EFI_INVALID_PARAMETER    Wrong buffer size
+  @retval Others                   Failure of ArmFfaLibGetFeatures()
+
+**/
+EFI_STATUS
+EFIAPI
+GetRxTxBufferMinSizeAndAlign (
+  OUT UINTN  *MinSizeAndAlign
+  );
+
+#endif