2 This file declares Temporary RAM Support PPI.
3 This Ppi provides the service that migrates temporary RAM into permanent memory.
5 Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
6 SPDX-License-Identifier: BSD-2-Clause-Patent
8 @par Revision Reference:
9 This PPI is introduced in PI Version 1.0.
13 #ifndef __TEMPORARY_RAM_SUPPORT_H__
14 #define __TEMPORARY_RAM_SUPPORT_H__
17 /// Note: The GUID name EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI_GUID is different from the current
20 #define EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI_GUID \
21 { 0xdbe23aa9, 0xa345, 0x4b97, {0x85, 0xb6, 0xb2, 0x26, 0xf1, 0x61, 0x73, 0x89} }
25 This service of the EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI that migrates temporary RAM into
28 @param PeiServices Pointer to the PEI Services Table.
29 @param TemporaryMemoryBase Source Address in temporary memory from which the SEC or PEIM will copy the
30 Temporary RAM contents.
31 @param PermanentMemoryBase Destination Address in permanent memory into which the SEC or PEIM will copy the
32 Temporary RAM contents.
33 @param CopySize Amount of memory to migrate from temporary to permanent memory.
35 @retval EFI_SUCCESS The data was successfully returned.
36 @retval EFI_INVALID_PARAMETER PermanentMemoryBase + CopySize > TemporaryMemoryBase when
37 TemporaryMemoryBase > PermanentMemoryBase.
42 (EFIAPI
* TEMPORARY_RAM_MIGRATION
)(
43 IN CONST EFI_PEI_SERVICES
**PeiServices
,
44 IN EFI_PHYSICAL_ADDRESS TemporaryMemoryBase
,
45 IN EFI_PHYSICAL_ADDRESS PermanentMemoryBase
,
50 /// This service abstracts the ability to migrate contents of the platform early memory store.
51 /// Note: The name EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI is different from the current PI 1.2 spec.
52 /// This PPI was optional.
55 TEMPORARY_RAM_MIGRATION TemporaryRamMigration
;
56 } EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI
;
58 extern EFI_GUID gEfiTemporaryRamSupportPpiGuid
;