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Last change
on this file since 80721 was 80721, checked in by vboxsync, 5 years ago |
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Devices/EFI/FirmwareNew: Start upgrade process to edk2-stable201908 (compiles on Windows and works to some extent), bugref:4643
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| 1 | /** @file
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| 2 | Provides services to return segment information on a platform with multiple PCI segments.
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| 3 |
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| 4 | This library is consumed by PciSegmentLib to support multiple segment PCI configuration access.
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| 5 |
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| 6 | Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
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| 7 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 8 |
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| 9 | **/
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| 10 |
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| 11 | #ifndef __PCI_SEGMENT_INFO_LIB__
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| 12 | #define __PCI_SEGMENT_INFO_LIB__
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| 13 |
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| 14 | typedef struct {
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| 15 | UINT16 SegmentNumber; ///< Segment number.
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| 16 | UINT64 BaseAddress; ///< ECAM Base address.
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| 17 | UINT8 StartBusNumber; ///< Start BUS number, for verifying the PCI Segment address.
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| 18 | UINT8 EndBusNumber; ///< End BUS number, for verifying the PCI Segment address.
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| 19 | } PCI_SEGMENT_INFO;
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| 20 |
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| 21 | /**
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| 22 | Return an array of PCI_SEGMENT_INFO holding the segment information.
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| 23 |
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| 24 | Note: The returned array/buffer is owned by callee.
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| 25 |
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| 26 | @param Count Return the count of segments.
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| 27 |
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| 28 | @retval A callee owned array holding the segment information.
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| 29 | **/
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| 30 | PCI_SEGMENT_INFO *
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| 31 | GetPciSegmentInfo (
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| 32 | UINTN *Count
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| 33 | );
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| 34 |
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| 35 | #endif
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