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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 - 2008, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
@par Revision Reference:
This PPI is defined in PI.
Version 1.00.
**/
#ifndef __TEMPORARY_RAM_SUPPORT_H__
#define __TEMPORARY_RAM_SUPPORT_H__
#define TEMPORARY_RAM_SUPPORT_PPI_GUID \
{ 0xdbe23aa9, 0xa345, 0x4b97, {0x85, 0xb6, 0xb2, 0x26, 0xf1, 0x61, 0x73, 0x89} }
/*
This service of the 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
);
/**
@par Ppi Description:
This service abstracts the ability to migrate contents of the platform early memory store.
@param ResetSystem
Perform the migration of contents of Temporary RAM to Permanent RAM.
Terminate the Temporary RAM if it cannot coexist with the Permanent RAM.
**/
typedef struct {
TEMPORARY_RAM_MIGRATION TemporaryRamMigration;
} TEMPORARY_RAM_SUPPORT_PPI;
extern EFI_GUID gEfiTemporaryRamSupportPpiGuid;
#endif
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