048651260b
The QemuVirtMemInfoLib ArmVirtMemInfoLib implementation created for
ArmVirtQemuKernel does exactly what we need for ArmVirtQemu, the only
difference being that the latter is PrePeiCore based, and so it uses
a different method to ensure that PcdSystemMemorySize is set when
ArmVirtGetMemoryMap() is called.
On ArmVirtQemu, we currently abuse the implied ordering guarantees
provided by ArmPlatformLib, by implementing this as follows:
ArmPlatformPkg/MemoryInitPei/MemoryInitPeim.inf [ArmVirtPkg/ArmVirtQemu.dsc]
InitializeMemory() [ArmPlatformPkg/MemoryInitPei/MemoryInitPeim.c]
ArmPlatformInitializeSystemMemory() [ArmVirtPkg/Library/ArmVirtPlatformLib/Virt.c]
//
// set PcdSystemMemorySize from the DT
//
MemoryPeim() [ArmVirtPkg/Library/ArmVirtMemoryInitPeiLib/ArmVirtMemoryInitPeiLib.c]
InitMmu() [ArmVirtPkg/Library/ArmVirtMemoryInitPeiLib/ArmVirtMemoryInitPeiLib.c]
ArmPlatformGetVirtualMemoryMap() [ArmVirtPkg/Library/ArmVirtPlatformLib/VirtMem.c]
//
// consume PcdSystemMemorySize
//
Given that we are trying to get rid of ArmPlatformLib, or at least remove
some of these API functions that are never used for their original purpose
by any platforms, we need to move the PCD assignment elsewhere.
So create a PEIM-only version of QemuVirtMemInfoLib especially for
ArmVirtQemu, and add the PCD assignment code to its constructor.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
59 lines
1.6 KiB
INI
59 lines
1.6 KiB
INI
#/* @file
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#
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# Copyright (c) 2011-2015, ARM Limited. All rights reserved.
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# Copyright (c) 2014-2017, Linaro Limited. All rights reserved.
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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 IMPLIED.
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#
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#*/
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[Defines]
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INF_VERSION = 0x0001001A
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BASE_NAME = QemuVirtMemInfoPeiLib
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FILE_GUID = 0c4d10cf-d949-49b4-bd13-47a4ae22efce
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MODULE_TYPE = BASE
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VERSION_STRING = 1.0
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LIBRARY_CLASS = ArmVirtMemInfoLib|PEIM
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CONSTRUCTOR = QemuVirtMemInfoPeiLibConstructor
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[Sources]
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QemuVirtMemInfoLib.c
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QemuVirtMemInfoPeiLibConstructor.c
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[Sources.ARM]
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Arm/PhysAddrTop.S
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[Sources.AARCH64]
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AArch64/PhysAddrTop.S
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[Packages]
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ArmPkg/ArmPkg.dec
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ArmVirtPkg/ArmVirtPkg.dec
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EmbeddedPkg/EmbeddedPkg.dec
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MdeModulePkg/MdeModulePkg.dec
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MdePkg/MdePkg.dec
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[LibraryClasses]
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ArmLib
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BaseMemoryLib
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DebugLib
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FdtLib
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PcdLib
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MemoryAllocationLib
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[Pcd]
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gArmTokenSpaceGuid.PcdFdBaseAddress
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gArmTokenSpaceGuid.PcdSystemMemoryBase
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gArmTokenSpaceGuid.PcdSystemMemorySize
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[FixedPcd]
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gArmTokenSpaceGuid.PcdFdSize
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gArmVirtTokenSpaceGuid.PcdDeviceTreeInitialBaseAddress
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gEmbeddedTokenSpaceGuid.PcdPrePiCpuMemorySize
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