2 files changed, 80 insertions, 0 deletions
diff --git a/roms/edk2/SecurityPkg/Library/RpmcLibNull/RpmcLibNull.c b/roms/edk2/SecurityPkg/Library/RpmcLibNull/RpmcLibNull.c
new file mode 100644
index 000000000..e1dd09eb1
--- /dev/null
+++ b/roms/edk2/SecurityPkg/Library/RpmcLibNull/RpmcLibNull.c
@@ -0,0 +1,47 @@
+/** @file
+  NULL RpmcLib instance for build purpose.
+
+Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/DebugLib.h>
+#include <Library/RpmcLib.h>
+
+/**
+  Requests the monotonic counter from the designated RPMC counter.
+
+  @param[out]   CounterValue            A pointer to a buffer to store the RPMC value.
+
+  @retval       EFI_SUCCESS             The operation completed successfully.
+  @retval       EFI_DEVICE_ERROR        A device error occurred while attempting to update the counter.
+  @retval       EFI_UNSUPPORTED         The operation is un-supported.
+**/
+EFI_STATUS
+EFIAPI
+RequestMonotonicCounter (
+  OUT UINT32  *CounterValue
+  )
+{
+  ASSERT (FALSE);
+  return EFI_UNSUPPORTED;
+}
+
+/**
+  Increments the monotonic counter in the SPI flash device by 1.
+
+  @retval       EFI_SUCCESS             The operation completed successfully.
+  @retval       EFI_DEVICE_ERROR        A device error occurred while attempting to update the counter.
+  @retval       EFI_UNSUPPORTED         The operation is un-supported.
+**/
+EFI_STATUS
+EFIAPI
+IncrementMonotonicCounter (
+  VOID
+  )
+{
+  ASSERT (FALSE);
+  return EFI_UNSUPPORTED;
+}
+
diff --git a/roms/edk2/SecurityPkg/Library/RpmcLibNull/RpmcLibNull.inf b/roms/edk2/SecurityPkg/Library/RpmcLibNull/RpmcLibNull.inf
new file mode 100644
index 000000000..500edfa87
--- /dev/null
+++ b/roms/edk2/SecurityPkg/Library/RpmcLibNull/RpmcLibNull.inf
@@ -0,0 +1,33 @@
+## @file
+#  Provides Null version of RpmcLib for build purpose.
+#
+#  Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010029
+  BASE_NAME                      = RpmcLibNull
+  FILE_GUID                      = FAE0BA22-92E2-4334-8F0F-96AFF9BAE360
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = RpmcLib
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = IA32 X64 Arm AArch64
+#
+
+[Sources]
+  RpmcLibNull.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  SecurityPkg/SecurityPkg.dec
+
+[LibraryClasses]
+  BaseLib
+  DebugLib
+