5eb0b80afc
SeaBIOS requires the OpenFirmware device paths exported in the "bootorder" fw-cfg file to refer to extra (PXB) root buses by their relative positions (in increasing bus number order) rather than by actual bus numbers. However, OVMF's PCI host bridge / root bridge driver creates PciRoot(UID) device path nodes for extra PCI root buses with UID=bus_nr, not position. (These ACPI devpath UID values must, and do, match the UID values exposed in QEMU's ACPI payload, generated for PXB root buses.) Therefore the boot order matching logic will have to map extra root bus positions to bus numbers. Add a small group of utility functions to help with that. Cc: Jordan Justen <jordan.l.justen@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17964 6f19259b-4bc3-4df7-8a09-765794883524
69 lines
1.9 KiB
INI
69 lines
1.9 KiB
INI
## @file
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# Rewrite the BootOrder NvVar based on QEMU's "bootorder" fw_cfg file.
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#
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# Copyright (C) 2012 - 2014, Red Hat, Inc.
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# Copyright (c) 2007 - 2015, Intel Corporation. All rights reserved.<BR>
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#
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# This program and the accompanying materials are licensed and made available
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# under the terms and conditions of the BSD License which accompanies this
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# distribution. The full text of the license may be found at
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# http://opensource.org/licenses/bsd-license.php
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#
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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
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# IMPLIED.
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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 = QemuBootOrderLib
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FILE_GUID = 4FFFA9E1-103D-4CF2-9C06-563BDD03050E
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MODULE_TYPE = DXE_DRIVER
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VERSION_STRING = 1.0
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LIBRARY_CLASS = QemuBootOrderLib|DXE_DRIVER
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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 IPF EBC ARM AARCH64
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#
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[Sources]
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QemuBootOrderLib.c
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ExtraRootBusMap.c
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[Packages]
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MdePkg/MdePkg.dec
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IntelFrameworkModulePkg/IntelFrameworkModulePkg.dec
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OvmfPkg/OvmfPkg.dec
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[LibraryClasses]
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QemuFwCfgLib
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DebugLib
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MemoryAllocationLib
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GenericBdsLib
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UefiBootServicesTableLib
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UefiRuntimeServicesTableLib
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BaseLib
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PrintLib
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DevicePathLib
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BaseMemoryLib
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OrderedCollectionLib
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[Guids]
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gEfiGlobalVariableGuid
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gVirtioMmioTransportGuid
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[FeaturePcd]
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gUefiOvmfPkgTokenSpaceGuid.PcdQemuBootOrderPciTranslation
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gUefiOvmfPkgTokenSpaceGuid.PcdQemuBootOrderMmioTranslation
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[Pcd]
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gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut
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[Protocols]
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gEfiDevicePathProtocolGuid ## CONSUMES
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gEfiPciRootBridgeIoProtocolGuid ## CONSUMES
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