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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4716 Migrate FSP-T/M binary from temporary RAM to permanent RAM before NEM tear down. Tcg module will use permanent address of FSP-T/M for measurement. In MdeModulePkg, PeiCore installs mMigrateTempRamPpi if PcdMigrateTemporaryRamFirmwareVolumes is True before NEM tear down and after permanent memory ready. Cc: Chasel Chiu <chasel.chiu@intel.com> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com> Cc: Duggapu Chinni B <chinni.b.duggapu@intel.com> Cc: Chen Gang C <gang.c.chen@intel.com> Cc: Liming Gao <gaoliming@byosoft.com.cn> Signed-off-by: Zhihao Li <zhihao.li@intel.com>
62 lines
2.3 KiB
C
62 lines
2.3 KiB
C
/** @file
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Migrated FV information
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Copyright (c) 2020 - 2024, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __EDKII_MIGRATED_FV_INFO_GUID_H__
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#define __EDKII_MIGRATED_FV_INFO_GUID_H__
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//
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// FLAGS_FV_RAW_DATA_COPY indicates FV raw data will be copied to permanent memory
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// or not. When FV is migrated to permanent memory, it will be rebased and raw
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// data will be lost. This bit can be configured as below values:
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// 0: FV raw data will not be used in later phase, and the copy will be skipped to
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// optimize boot performance.
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// 1: FV raw data will be copied to permanent memory for later phase use (such as
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// FV measurement).
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//
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#define FLAGS_FV_RAW_DATA_COPY BIT0
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///
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/// In real use cases, not all FVs need migrate to permanent memory before TempRam tears
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/// down. EDKII_MIGRATION_INFO hob should be published by platform to indicate which
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/// FVs need migration to optimize boot performance. If this hob is not detected by Pei
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/// Core, all FVs on TempRam will be migrated and FV raw data will also be copied.
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/// Only one EDKII_MIGRATION_INFO hob should be published by platform, and this hob will
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/// take effect only when migration feature is enabled by PCD.
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///
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typedef struct {
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UINT32 FvOrgBaseOnTempRam; // Original FV address on Temporary Ram
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//
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// FV Migration Flags:
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// Bit0: Indicate to copy FV raw data or not
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// Others: Reserved bits
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//
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UINT32 FvMigrationFlags;
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} TO_MIGRATE_FV_INFO;
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typedef struct {
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BOOLEAN MigrateAll; // Migrate all FVs and also copy FV raw data
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//
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// ToMigrateFvCount and ToMigrateFvInfo array indicate which FVs need be migrated, and
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// these info should be ignored when MigrateAll field is set to TRUE.
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//
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UINT32 ToMigrateFvCount;
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// TO_MIGRATE_FV_INFO ToMigrateFvInfo[];
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} EDKII_MIGRATION_INFO;
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typedef struct {
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UINT32 FvOrgBase; // original FV address
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UINT32 FvNewBase; // new FV address, 0 means rebased data is not copied
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UINT32 FvDataBase; // original FV data, 0 means raw data is not copied
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UINT32 FvLength; // Fv Length
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} EDKII_MIGRATED_FV_INFO;
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extern EFI_GUID gEdkiiMigrationInfoGuid;
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extern EFI_GUID gEdkiiMigratedFvInfoGuid;
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#endif // #ifndef __EDKII_MIGRATED_FV_INFO_GUID_H__
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