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b904377d0d
Removes the following types from the memory type information HOB produced: - `EfiBootServicesCode` - `EfiBootServicesData` - `EfiLoaderCode` - `EfiLoaderData` This follows the guidance in the whitepaper "A Tour Beyond BIOS Memory Map and Practices in UEFI BIOS". https://github.com/tianocore-docs/Docs/raw/master/White_Papers/A_Tour_Beyond_BIOS_Memory_Map_And_Practices_in_UEFI_BIOS_V2.pdf "NOTE: We recommend a platform only define the ReservedMemory, ACPINvs, ACPIReclaim, RuntimeCode, RuntimeData in Memory Type Information table, because OSes only request these regions to be consistent. There is no need to add BootServicesCode, BootServicesData, LoaderCode, LoaderData in memory type information table, because these regions will not be reserved during S4 resume." Since these memory types are not tracked in memory type information any longer it also reduces the number of resets that may need to occur to update memory type buckets that are not needed. Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
54 lines
1.3 KiB
INI
54 lines
1.3 KiB
INI
#/** @file
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# Hob lib that does not contain the APIs as they are already in the PrePiLib
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#
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# Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
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# Copyright (c) 2008 - 2010, Apple Inc. 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 = 0x00010005
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BASE_NAME = PrePiHobLib
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FILE_GUID = AEF7D85A-6A91-4ACD-9A28-193DEFB325FB
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MODULE_TYPE = BASE
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VERSION_STRING = 1.0
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LIBRARY_CLASS = HobLib
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#
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# VALID_ARCHITECTURES = IA32 X64 EBC
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#
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[Sources.common]
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Hob.c
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[Packages]
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MdePkg/MdePkg.dec
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MdeModulePkg/MdeModulePkg.dec
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EmbeddedPkg/EmbeddedPkg.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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PrePiHobListPointerLib
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[Guids]
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gEfiHobMemoryAllocModuleGuid
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gEfiHobMemoryAllocStackGuid
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[FixedPcd.common]
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gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiACPIReclaimMemory
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gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiACPIMemoryNVS
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gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiReservedMemoryType
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gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiRuntimeServicesData
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gEmbeddedTokenSpaceGuid.PcdMemoryTypeEfiRuntimeServicesCode
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[FeaturePcd]
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gEmbeddedTokenSpaceGuid.PcdPrePiProduceMemoryTypeInformationHob
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