11b15336f0
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3275 The MemEncryptSevSnpPreValidateSystemRam() is used for pre-validating the system RAM. As the boot progress, each phase validates a fixed region of the RAM. In the PEI phase, the PlatformPei detects all the available RAM and calls to pre-validate the detected system RAM. While validating the system RAM in PEI phase, we must skip previously validated system RAM to avoid the double validation. Cc: Michael Roth <michael.roth@amd.com> Cc: James Bottomley <jejb@linux.ibm.com> Cc: Min Xu <min.m.xu@intel.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org> Cc: Erdem Aktas <erdemaktas@google.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Jiewen Yao <Jiewen.yao@intel.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
63 lines
1.4 KiB
INI
63 lines
1.4 KiB
INI
## @file
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# Library provides the helper functions for SEV guest
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#
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# Copyright (c) 2020 Advanced Micro Devices. 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 = 1.25
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BASE_NAME = PeiMemEncryptSevLib
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FILE_GUID = 15d9a694-3d2a-4184-9672-ba55c3070e07
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MODULE_TYPE = BASE
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VERSION_STRING = 1.0
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LIBRARY_CLASS = MemEncryptSevLib|PEIM
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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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[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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UefiCpuPkg/UefiCpuPkg.dec
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[Sources]
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PeiDxeMemEncryptSevLibInternal.c
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PeiMemEncryptSevLibInternal.c
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[Sources.X64]
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X64/MemEncryptSevLib.c
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X64/PeiDxeVirtualMemory.c
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X64/PeiSnpSystemRamValidate.c
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X64/SnpPageStateChangeInternal.c
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X64/VirtualMemory.c
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X64/VirtualMemory.h
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[Sources.IA32]
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Ia32/MemEncryptSevLib.c
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[LibraryClasses]
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BaseLib
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CacheMaintenanceLib
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CpuLib
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DebugLib
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MemoryAllocationLib
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PcdLib
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VmgExitLib
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[FeaturePcd]
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gUefiOvmfPkgTokenSpaceGuid.PcdSmmSmramRequire
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[FixedPcd]
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gUefiCpuPkgTokenSpaceGuid.PcdSevEsWorkAreaBase
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gUefiOvmfPkgTokenSpaceGuid.PcdOvmfPeiMemFvBase
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gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPageTablesBase
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