33d4f3e39e
The "OvmfPkg/Library/PciHostBridgeLibScan/PciHostBridgeLibScan.inf" instance is used in the following platforms in edk2: OvmfPkg/Bhyve/BhyveX64.dsc OvmfPkg/OvmfXen.dsc Both platforms define "PcdPciDisableBusEnumeration" with Fixed-at-Build access method, and TRUE value. Remove the PCD from the PciHostBridgeLibScan instance, and everything else that is useful only when the PCD is FALSE. In practice, this removes the PciHostBridgeUtilityGetRootBridges() function call, which is based on fw-cfg; see "OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c". (Note that the dependency on PciHostBridgeUtilityLib remains in place, given that the PciHostBridgeLibScan instance continues using lower-level functions from the library that do not depend on fw-cfg.) Cc: Anthony Perard <anthony.perard@citrix.com> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Julien Grall <julien@xen.org> Cc: Peter Grehan <grehan@freebsd.org> Cc: Philippe Mathieu-Daudé <philmd@redhat.com> Cc: Rebecca Cran <rebecca@bsdio.com> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2122 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Message-Id: <20210526201446.12554-34-lersek@redhat.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
48 lines
1.1 KiB
INI
48 lines
1.1 KiB
INI
## @file
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# OVMF's instance of the PCI Host Bridge Library.
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#
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# Copyright (C) 2016-2021, Red Hat, Inc.
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# Copyright (c) 2016 - 2018, Intel Corporation. All rights reserved.<BR>
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#
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# SPDX-License-Identifier: BSD-2-Clause-Patent
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#
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#
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##
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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = PciHostBridgeLibScan
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FILE_GUID = c93f2411-9bf5-4894-b552-67fae0c3d291
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MODULE_TYPE = DXE_DRIVER
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VERSION_STRING = 1.0
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LIBRARY_CLASS = PciHostBridgeLib
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#
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# The following information is for reference only and not required by the build
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# tools.
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#
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# VALID_ARCHITECTURES = IA32 X64 EBC
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#
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[Sources]
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PciHostBridge.h
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PciHostBridgeLib.c
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XenSupport.c
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[Packages]
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MdeModulePkg/MdeModulePkg.dec
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MdePkg/MdePkg.dec
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OvmfPkg/OvmfPkg.dec
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[LibraryClasses]
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BaseLib
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BaseMemoryLib
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DebugLib
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MemoryAllocationLib
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PcdLib
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PciHostBridgeUtilityLib
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PciLib
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[Pcd]
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gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId
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