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+/** @file
+ This file declares Temporary RAM Support PPI.
+ This Ppi provides the service that migrates temporary RAM into permanent memory.
+
+ Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+ @par Revision Reference:
+ This PPI is introduced in PI Version 1.0.
+
+**/
+
+#ifndef __TEMPORARY_RAM_SUPPORT_H__
+#define __TEMPORARY_RAM_SUPPORT_H__
+
+///
+/// Note: The GUID name EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI_GUID is different from the current
+/// PI 1.2 spec.
+///
+#define EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI_GUID \
+ { 0xdbe23aa9, 0xa345, 0x4b97, {0x85, 0xb6, 0xb2, 0x26, 0xf1, 0x61, 0x73, 0x89} }
+
+
+/**
+ This service of the EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI that migrates temporary RAM into
+ permanent memory.
+
+ @param PeiServices Pointer to the PEI Services Table.
+ @param TemporaryMemoryBase Source Address in temporary memory from which the SEC or PEIM will copy the
+ Temporary RAM contents.
+ @param PermanentMemoryBase Destination Address in permanent memory into which the SEC or PEIM will copy the
+ Temporary RAM contents.
+ @param CopySize Amount of memory to migrate from temporary to permanent memory.
+
+ @retval EFI_SUCCESS The data was successfully returned.
+ @retval EFI_INVALID_PARAMETER PermanentMemoryBase + CopySize > TemporaryMemoryBase when
+ TemporaryMemoryBase > PermanentMemoryBase.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI * TEMPORARY_RAM_MIGRATION)(
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PHYSICAL_ADDRESS TemporaryMemoryBase,
+ IN EFI_PHYSICAL_ADDRESS PermanentMemoryBase,
+ IN UINTN CopySize
+);
+
+///
+/// This service abstracts the ability to migrate contents of the platform early memory store.
+/// Note: The name EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI is different from the current PI 1.2 spec.
+/// This PPI was optional.
+///
+typedef struct {
+ TEMPORARY_RAM_MIGRATION TemporaryRamMigration;
+} EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI;
+
+extern EFI_GUID gEfiTemporaryRamSupportPpiGuid;
+
+#endif