1 files changed, 36 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/X64/WriteLdtr.S b/MdePkg/Library/BaseLib/X64/WriteLdtr.S
new file mode 100644
index 0000000000..c07ab831f9
--- /dev/null
+++ b/MdePkg/Library/BaseLib/X64/WriteLdtr.S
@@ -0,0 +1,36 @@
+#------------------------------------------------------------------------------
+#
+# Copyright (c) 2006, Intel Corporation
+# 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.
+#
+# Module Name:
+#
+#   WriteLdtr.S
+#
+# Abstract:
+#
+#   AsmWriteLdtr function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+# VOID
+# EFIAPI
+# AsmWriteLdtr (
+#   IN UINT16 Ldtr
+#   );
+#------------------------------------------------------------------------------
+.global _AsmWriteLdtr;
+.align 16;
+_AsmWriteLdtr:
+    lldt    %cx
+    ret