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diff --git a/MdePkg/Library/BaseLib/Ia32/ReadIdtr.c b/MdePkg/Library/BaseLib/Ia32/ReadIdtr.c
new file mode 100644
index 0000000000..0e3c25ab62
--- /dev/null
+++ b/MdePkg/Library/BaseLib/Ia32/ReadIdtr.c
@@ -0,0 +1,30 @@
+/** @file
+  AsmReadIdtr function
+
+  Copyright (c) 2006 - 2007, Intel Corporation<BR>
+  All rights reserved. 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.
+
+**/
+
+//
+// Include common header file for this module.
+//
+#include "CommonHeader.h"
+
+VOID
+EFIAPI
+InternalX86ReadIdtr (
+  OUT     IA32_DESCRIPTOR           *Idtr
+  )
+{
+  _asm {
+    mov     eax, Idtr
+    sidt    fword ptr [eax]
+  }
+}