1 files changed, 36 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/X64/ReadIdtr.S b/MdePkg/Library/BaseLib/X64/ReadIdtr.S
new file mode 100644
index 0000000000..cd7c09e6b7
--- /dev/null
+++ b/MdePkg/Library/BaseLib/X64/ReadIdtr.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:
+#
+#   ReadIdtr.AS
+#
+# Abstract:
+#
+#   AsmReadIdtr function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+
+#------------------------------------------------------------------------------
+# VOID
+# EFIAPI
+# InternalX86ReadIdtr (
+#   OUT     IA32_DESCRIPTOR           *Idtr
+#   );
+#------------------------------------------------------------------------------
+.global _InternalX86ReadIdtr;
+.align 16;
+_InternalX86ReadIdtr:
+    sidt    (%rcx)
+    ret