b0ed7ebdeb
The following flash-related base addresses: - PcdFlashNvStorageVariableBase64, - PcdFlashNvStorageFtwWorkingBase, - PcdFlashNvStorageFtwSpareBase, are always set to constant (invariable) values in the "-D SMM_REQUIRE" build of OVMF. (That's because in the SMM build, actual pflash is a hard requirement, and the RAM-based emulation is never available.) Set said PCDs statically, at build. This will allow us to depend on their values in the PEI phase. When SMM_REQUIRE is FALSE, this change has no effect (confirmed by report file comparison). When SMM_REQUIRE is TRUE, the report file shows the following changes: - "PcdOvmfFlashNvStorageFtwSpareBase" and "PcdOvmfFlashNvStorageFtwWorkingBase" are no longer consumed by any module directly, - for "PcdFlashNvStorageFtwSpareBase", "PcdFlashNvStorageFtwWorkingBase" and "PcdFlashNvStorageVariableBase64", the access method changes from DYN to FIXED, - for the latter PCDs, the zero (dynamic default) values are replaced with the desired constants. Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Philippe Mathieu-Daudé <philmd@redhat.com> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=386 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Message-Id: <20200310222739.26717-4-lersek@redhat.com> Acked-by: Leif Lindholm <leif@nuviainc.com>
82 lines
2.1 KiB
INI
82 lines
2.1 KiB
INI
## @file
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# Component description file for QEMU Flash Firmware Volume Block SMM driver
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# module.
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#
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# This SMM driver implements and produces the SMM Firmware Volue Block Protocol
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# for a QEMU flash device.
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#
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# Copyright (C) 2015, Red Hat, Inc.
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# Copyright (c) 2006 - 2013, 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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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = FvbServicesSmm
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FILE_GUID = 2E7DB7A7-608E-4041-B45F-00359E0766C6
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MODULE_TYPE = DXE_SMM_DRIVER
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VERSION_STRING = 1.0
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PI_SPECIFICATION_VERSION = 0x0001000A
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ENTRY_POINT = FvbInitialize
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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
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#
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[Sources]
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FvbInfo.c
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FwBlockService.c
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FwBlockService.h
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FwBlockServiceSmm.c
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QemuFlash.c
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QemuFlash.h
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QemuFlashSmm.c
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[Packages]
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MdePkg/MdePkg.dec
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MdeModulePkg/MdeModulePkg.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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DevicePathLib
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DxeServicesTableLib
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MemoryAllocationLib
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MemEncryptSevLib
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PcdLib
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SmmServicesTableLib
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UefiBootServicesTableLib
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UefiDriverEntryPoint
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[Guids]
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[Protocols]
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gEfiSmmFirmwareVolumeBlockProtocolGuid # PROTOCOL ALWAYS_PRODUCED
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gEfiDevicePathProtocolGuid # PROTOCOL ALWAYS_PRODUCED
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[FixedPcd]
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gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
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gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize
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gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize
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gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageVariableBase
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gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageEventLogSize
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gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFdBaseAddress
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gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFirmwareFdSize
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gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFirmwareBlockSize
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[Pcd]
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gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashVariablesEnable
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[FeaturePcd]
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gUefiOvmfPkgTokenSpaceGuid.PcdSmmSmramRequire
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[Depex]
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TRUE
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