diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf
index ab9fefb21f..d2cf979b1a 100644
--- a/MdePkg/Library/BaseLib/BaseLib.inf
+++ b/MdePkg/Library/BaseLib/BaseLib.inf
@@ -563,6 +563,7 @@
   X64/ReadDr3.asm | MSFT
   X64/ReadDr2.nasm| MSFT
   X64/ReadDr2.asm | MSFT
+  X64/ReadDr1.nasm| MSFT
   X64/ReadDr1.asm | MSFT
   X64/ReadDr0.asm | MSFT
   X64/WriteCr4.asm | MSFT
@@ -694,6 +695,7 @@
   X64/ReadDr3.asm | INTEL
   X64/ReadDr2.nasm| INTEL
   X64/ReadDr2.asm | INTEL
+  X64/ReadDr1.nasm| INTEL
   X64/ReadDr1.asm | INTEL
   X64/ReadDr0.asm | INTEL
   X64/WriteCr4.asm | INTEL
diff --git a/MdePkg/Library/BaseLib/X64/ReadDr1.nasm b/MdePkg/Library/BaseLib/X64/ReadDr1.nasm
new file mode 100644
index 0000000000..66b961f2e5
--- /dev/null
+++ b/MdePkg/Library/BaseLib/X64/ReadDr1.nasm
@@ -0,0 +1,38 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, 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:
+;
+;   ReadDr1.Asm
+;
+; Abstract:
+;
+;   AsmReadDr1 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    DEFAULT REL
+    SECTION .text
+
+;------------------------------------------------------------------------------
+; UINTN
+; EFIAPI
+; AsmReadDr1 (
+;   VOID
+;   );
+;------------------------------------------------------------------------------
+global ASM_PFX(AsmReadDr1)
+ASM_PFX(AsmReadDr1):
+    mov     rax, dr1
+    ret
+