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diff --git a/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Library/PciSegmentInfoLib.h b/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Library/PciSegmentInfoLib.h
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+/** @file
+ Provides services to return segment information on a platform with multiple PCI segments.
+
+ This library is consumed by PciSegmentLib to support multiple segment PCI configuration access.
+
+ Copyright (c) 2017, 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 __PCI_SEGMENT_INFO_LIB__
+#define __PCI_SEGMENT_INFO_LIB__
+
+typedef struct {
+ UINT16 SegmentNumber; ///< Segment number.
+ UINT64 BaseAddress; ///< ECAM Base address.
+ UINT8 StartBusNumber; ///< Start BUS number, for verifying the PCI Segment address.
+ UINT8 EndBusNumber; ///< End BUS number, for verifying the PCI Segment address.
+} PCI_SEGMENT_INFO;
+
+/**
+ Return an array of PCI_SEGMENT_INFO holding the segment information.
+
+ Note: The returned array/buffer is owned by callee.
+
+ @param Count Return the count of segments.
+
+ @retval A callee owned array holding the segment information.
+**/
+PCI_SEGMENT_INFO *
+GetPciSegmentInfo (
+ UINTN *Count
+ );
+
+#endif