e457c1f65d
The patch adds PciSegmentInfoLib library class which is used by PciSegmentLib (commit in next patch) to support multiple segment PCI configuration access. BasePciSegmentInfoLibNull instance is added but it shouldn't be used by any real platform. Any single segment platform that wants to use PciSegmentLib could use BasePciSegmentLibPci instance. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
/** @file
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Default PCI Segment Information Library that returns one segment whose
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segment base address equals to PcdPciExpressBaseAddress.
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Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are
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licensed and made available under the terms and conditions of
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the BSD License which accompanies this distribution. The full
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text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Base.h>
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#include <Library/PciSegmentInfoLib.h>
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#include <Library/DebugLib.h>
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/**
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Return an array of PCI_SEGMENT_INFO holding the segment information.
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Note: The returned array/buffer is owned by callee.
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@param Count Return the count of segments.
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@retval A callee owned array holding the segment information.
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**/
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PCI_SEGMENT_INFO *
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GetPciSegmentInfo (
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UINTN *Count
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)
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{
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ASSERT (FALSE);
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*Count = 0;
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return NULL;
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}
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