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git.proxmox.com Git - mirror_edk2.git/blob - MdePkg/Include/Library/PciSegmentInfoLib.h
2 Provides services to return segment information on a platform with multiple PCI segments.
4 This library is consumed by PciSegmentLib to support multiple segment PCI configuration access.
6 Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
7 This program and the accompanying materials
8 are licensed and made available under the terms and conditions of the BSD License
9 which accompanies this distribution. The full text of the license may be found at
10 http://opensource.org/licenses/bsd-license.php
12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
17 #ifndef __PCI_SEGMENT_INFO_LIB__
18 #define __PCI_SEGMENT_INFO_LIB__
21 UINT16 SegmentNumber
; ///< Segment number.
22 UINT64 BaseAddress
; ///< ECAM Base address.
23 UINT8 StartBusNumber
; ///< Start BUS number, for verifying the PCI Segment address.
24 UINT8 EndBusNumber
; ///< End BUS number, for verifying the PCI Segment address.
28 Return an array of PCI_SEGMENT_INFO holding the segment information.
30 Note: The returned array/buffer is owned by callee.
32 @param Count Return the count of segments.
34 @retval A callee owned array holding the segment information.