1 files changed, 41 insertions, 1 deletions
diff --git a/MdeModulePkg/Include/Guid/MigratedFvInfo.h b/MdeModulePkg/Include/Guid/MigratedFvInfo.h
index aca2332a0e..1c8b0dfefc 100644
--- a/MdeModulePkg/Include/Guid/MigratedFvInfo.h
+++ b/MdeModulePkg/Include/Guid/MigratedFvInfo.h
@@ -9,13 +9,53 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #ifndef __EDKII_MIGRATED_FV_INFO_GUID_H__
 #define __EDKII_MIGRATED_FV_INFO_GUID_H__
 
+//
+// FLAGS_FV_RAW_DATA_COPY indicates FV raw data will be copied to permanent memory
+// or not. When FV is migrated to permanent memory, it will be rebased and raw
+// data will be lost. This bit can be configured as below values:
+// 0: FV raw data will not be used in later phase, and the copy will be skipped to
+//    optimize boot performance.
+// 1: FV raw data will be copied to permanent memory for later phase use (such as
+//    FV measurement).
+//
+#define FLAGS_FV_RAW_DATA_COPY  BIT0
+
+///
+/// In real use cases, not all FVs need migrate to permanent memory before TempRam tears
+/// down. EDKII_MIGRATION_INFO hob should be published by platform to indicate which
+/// FVs need migration to optimize boot performance. If this hob is not detected by Pei
+/// Core, all FVs on TempRam will be migrated and FV raw data will also be copied.
+/// Only one EDKII_MIGRATION_INFO hob should be published by platform, and this hob will
+/// take effect only when migration feature is enabled by PCD.
+///
+typedef struct {
+  UINT32    FvOrgBaseOnTempRam;        // Original FV address on Temporary Ram
+  //
+  // FV Migration Flags:
+  // Bit0: Indicate to copy FV raw data or not
+  // Others: Reserved bits
+  //
+  UINT32    FvMigrationFlags;
+} TO_MIGRATE_FV_INFO;
+
+typedef struct {
+  BOOLEAN    MigrateAll;                    // Migrate all FVs and also copy FV raw data
+  //
+  // ToMigrateFvCount and ToMigrateFvInfo array indicate which FVs need be migrated, and
+  // these info should be ignored when MigrateAll field is set to TRUE.
+  //
+  UINT32     ToMigrateFvCount;
+  // TO_MIGRATE_FV_INFO    ToMigrateFvInfo[];
+} EDKII_MIGRATION_INFO;
+
 typedef struct {
   UINT32    FvOrgBase;         // original FV address
   UINT32    FvNewBase;         // new FV address
-  UINT32    FvDataBase;        // original FV data
+  UINT32    FvDataBase;        // original FV data, 0 means raw data is not copied
   UINT32    FvLength;          // Fv Length
 } EDKII_MIGRATED_FV_INFO;
 
+extern EFI_GUID  gEdkiiMigrationInfoGuid;
 extern EFI_GUID  gEdkiiMigratedFvInfoGuid;
 
 #endif // #ifndef __EDKII_MIGRATED_FV_INFO_GUID_H__