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14c9ba1a2c
A potential issue may happen when FSP creates/changes page table while bootloader doesn't expect page table being changed in FSP. Current, FSP API support to save/restore stack, IDT and general purpose registers. Following the same pattern, add save/restore page table support to solve this issue. Note that this feature only impacts FSP API mode, and is controlled by PCD PcdFspSaveRestorePageTableEnable. For compatibility, the PCD default value is set as FALSE. Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
37 lines
800 B
INI
37 lines
800 B
INI
## @file
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# Instance of BaseFspSwitchStackLib
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#
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# Copyright (c) 2014 - 2016, 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 = BaseFspSwitchStackLib
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FILE_GUID = 68E79161-F7CE-4A61-8C72-F4DF6FF35CAA
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MODULE_TYPE = BASE
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VERSION_STRING = 1.0
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LIBRARY_CLASS = FspSwitchStackLib
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[Sources]
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FspSwitchStackLib.c
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[Sources.IA32]
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Ia32/Stack.nasm
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[Sources.X64]
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X64/Stack.nasm
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[Packages]
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MdePkg/MdePkg.dec
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IntelFsp2Pkg/IntelFsp2Pkg.dec
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[LibraryClasses]
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BaseLib
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IoLib
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[Pcd]
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gIntelFsp2PkgTokenSpaceGuid.PcdFspSaveRestorePageTableEnable
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