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diff --git a/MdePkg/Library/SmmCpuRendezvousLibNull/SmmCpuRendezvousLibNull.c b/MdePkg/Library/SmmCpuRendezvousLibNull/SmmCpuRendezvousLibNull.c
new file mode 100644
index 0000000000..474195bbb3
--- /dev/null
+++ b/MdePkg/Library/SmmCpuRendezvousLibNull/SmmCpuRendezvousLibNull.c
@@ -0,0 +1,29 @@
+/** @file
+  SMM CPU Rendezvous sevice implement.
+
+  Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/DebugLib.h>
+#include <Library/SmmCpuRendezvousLib.h>
+
+/**
+  This routine wait for all AP processors to arrive in SMM.
+
+  @param[in] BlockingMode  Blocking mode or non-blocking mode.
+
+  @retval EFI_SUCCESS  All avaiable APs arrived.
+  @retval EFI_TIMEOUT  Wait for all APs until timeout.
+  @retval OTHER        Fail to register SMM CPU Rendezvous service Protocol.
+**/
+EFI_STATUS
+EFIAPI
+SmmWaitForAllProcessor (
+  IN BOOLEAN  BlockingMode
+  )
+{
+  ASSERT (FALSE);
+  return EFI_SUCCESS;
+}