diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf
index ec0753a984..f739e03587 100644
--- a/MdePkg/Library/BaseLib/BaseLib.inf
+++ b/MdePkg/Library/BaseLib/BaseLib.inf
@@ -539,6 +539,7 @@
   X64/WriteDr7.asm | MSFT
   X64/WriteDr6.nasm| MSFT
   X64/WriteDr6.asm | MSFT
+  X64/WriteDr5.nasm| MSFT
   X64/WriteDr5.asm | MSFT
   X64/WriteDr4.asm | MSFT
   X64/WriteDr3.asm | MSFT
@@ -658,6 +659,7 @@
   X64/WriteDr7.asm | INTEL
   X64/WriteDr6.nasm| INTEL
   X64/WriteDr6.asm | INTEL
+  X64/WriteDr5.nasm| INTEL
   X64/WriteDr5.asm | INTEL
   X64/WriteDr4.asm | INTEL
   X64/WriteDr3.asm | INTEL
diff --git a/MdePkg/Library/BaseLib/X64/WriteDr5.nasm b/MdePkg/Library/BaseLib/X64/WriteDr5.nasm
new file mode 100644
index 0000000000..9fcb1d199c
--- /dev/null
+++ b/MdePkg/Library/BaseLib/X64/WriteDr5.nasm
@@ -0,0 +1,43 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+; 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.
+;
+; Module Name:
+;
+;   WriteDr5.Asm
+;
+; Abstract:
+;
+;   AsmWriteDr5 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    DEFAULT REL
+    SECTION .text
+
+;------------------------------------------------------------------------------
+; UINTN
+; EFIAPI
+; AsmWriteDr5 (
+;   IN UINTN Value
+;   );
+;------------------------------------------------------------------------------
+global ASM_PFX(AsmWriteDr5)
+ASM_PFX(AsmWriteDr5):
+    ;
+    ; There's no obvious reason to access this register, since it's aliased to
+    ; DR7 when DE=0 or an exception generated when DE=1
+    ;
+    DB      0xf, 0x23, 0xe9
+    mov     rax, rcx
+    ret
+