| /** @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 |