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diff --git a/IntelFrameworkModulePkg/Include/Guid/LegacyBios.h b/IntelFrameworkModulePkg/Include/Guid/LegacyBios.h
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+/** @file
+  Defines a Tag GUID used to mark a UEFI legacy BIOS thunk driver based
+  on legacy BIOS services and legacy option ROM. This Tag GUID must be installed on 
+  the ImageHandle of any module that follows the EFI Driver Model and uses 
+  the Int86() or FarCall() services of the Legacy Bios Protocol to produce
+  a standard UEFI I/O Protocol.
+
+Copyright (c) 2006 - 2010, 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.
+
+**/
+
+#ifndef _LEGACY_BIOS_H_
+#define _LEGACY_BIOS_H_
+
+///
+/// The Global ID for the Legacy BIOS GUID that must be installed onto the ImageHandle 
+/// of any module follows the EFI Driver Model and uses the Int86() or FarCall() 
+/// services of the Legacy BIOS Protocol to produce a standard UEFI I/O Protocol.
+///
+#define EFI_LEGACY_BIOS_GUID \
+  { \
+    0x2e3044ac, 0x879f, 0x490f, {0x97, 0x60, 0xbb, 0xdf, 0xaf, 0x69, 0x5f, 0x50 } \
+  }
+
+extern EFI_GUID gEfiLegacyBiosGuid;
+
+#endif