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diff --git a/EDK/Foundation/Guid/PciExpressBaseAddress/PciExpressBaseAddress.h b/EDK/Foundation/Guid/PciExpressBaseAddress/PciExpressBaseAddress.h
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+/*++
+
+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:
+
+ PciExpressBaseAddress.h
+
+Abstract:
+
+
+ GUIDs used for PciExpress Base Address
+
+--*/
+
+#ifndef _EFI_PCI_EXPRESS_BASE_ADDRESS_H_
+#define _EFI_PCI_EXPRESS_BASE_ADDRESS_H_
+
+#define EFI_PCI_EXPRESS_BASE_ADDRESS_GUID \
+ { \
+ 0x3677d529, 0x326f, 0x4603, 0xa9, 0x26, 0xea, 0xac, 0xe0, 0x1d, 0xcb, 0xb0 \
+ }
+
+//
+// Following structure defines PCI Express Base Address information.
+// This information is platform specific, and built into hob in PEI phase.
+// It can be consumed by PEI PCI driver and DXE PCI driver.
+//
+#pragma pack(1)
+typedef struct _EFI_PCI_EXPRESS_BASE_ADDRESS_INFORMATION {
+ UINT32 HostBridgeNumber;
+ UINT32 RootBridgeNumber;
+ UINT64 PciExpressBaseAddress;
+} EFI_PCI_EXPRESS_BASE_ADDRESS_INFORMATION;
+#pragma pack()
+
+extern EFI_GUID gEfiPciExpressBaseAddressGuid;
+
+#endif