c5d917158d
In commit 62f43f7c19, we set PcdVariableStoreSize to the same value as
PcdFlashNvStorageVariableSize (which in turn comes from VARS_LIVE_SIZE in
"OvmfPkg.fdf.inc").
This equality between both PCDs is a false requirement from
EmuVariableFvbRuntimeDxe. FVB drivers should use
PcdFlashNvStorageVariableSize for supporting non-volatile variables (even
if they happen to be kept in RAM only), along the other PcdFlashNvStorage*
PCDs. Whereas PcdVariableStoreSize is for variables that are volatile at
the gRT->SetVariable() / gRT->GetVariable() API level.
(PlatformPei too bases the preallocation for EmuVariableFvbRuntimeDxe on
PcdFlashNvStorageFtwSpareSize.)
Replace PcdVariableStoreSize in EmuVariableFvbRuntimeDxe with the
same-value PcdFlashNvStorageVariableSize. This means no change in
behavior, and it allows us to increase PcdVariableStoreSize in a later
patch without disturbing EmuVariableFvbRuntimeDxe (or PlatformPei).
Cc: Anthony Perard <anthony.perard@citrix.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Gary Ching-Pang Lin <glin@suse.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Julien Grall <julien.grall@linaro.org>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Gary Lin <glin@suse.com>
Tested-by: Gary Lin <glin@suse.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
74 lines
2.2 KiB
INI
74 lines
2.2 KiB
INI
## @file
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# Firmware Block Services to support emulating non-volatile variables
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# by pretending that a memory buffer is storage for the NV variables.
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#
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# Copyright (c) 2008 - 2011, Intel Corporation. All rights reserved.<BR>
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#
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# This program and the accompanying materials
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# are licensed and made available under the terms and conditions of the BSD License
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# which accompanies this 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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# 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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##
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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = EmuVariableFvbRuntimeDxe
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FILE_GUID = 22dc2b60-fe40-42ac-b01f-3ab1fad9aad8
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MODULE_TYPE = DXE_RUNTIME_DRIVER
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VERSION_STRING = 1.0
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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 tools.
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#
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# VALID_ARCHITECTURES = IA32 X64 IPF EBC
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#
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[Sources]
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Fvb.c
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Fvb.h
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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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DxeServicesTableLib
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HobLib
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MemoryAllocationLib
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PcdLib
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PlatformFvbLib
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UefiBootServicesTableLib
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UefiDriverEntryPoint
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UefiLib
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UefiRuntimeLib
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[Guids]
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gEfiEventVirtualAddressChangeGuid # ALWAYS_CONSUMED Create Event: EVENT_GROUP_GUID
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[Protocols]
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gEfiFirmwareVolumeBlock2ProtocolGuid # 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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[Pcd]
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gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64
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gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase
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gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase
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gEfiMdeModulePkgTokenSpaceGuid.PcdEmuVariableNvStoreReserved
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[Depex]
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TRUE
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