| /** @file |
| This file declares Temporary RAM Done PPI. |
| The PPI that provides a service to disable the use of Temporary RAM. |
| |
| Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved.<BR> |
| SPDX-License-Identifier: BSD-2-Clause-Patent |
| |
| @par Revision Reference: |
| This PPI is introduced in PI Version 1.2.1. |
| |
| **/ |
| |
| #ifndef __TEMPORARY_RAM_DONE_H__ |
| #define __TEMPORARY_RAM_DONE_H__ |
| |
| #define EFI_PEI_TEMPORARY_RAM_DONE_PPI_GUID \ |
| { 0xceab683c, 0xec56, 0x4a2d, { 0xa9, 0x6, 0x40, 0x53, 0xfa, 0x4e, 0x9c, 0x16 } } |
| |
| /** |
| TemporaryRamDone() disables the use of Temporary RAM. If present, this service is invoked |
| by the PEI Foundation after the EFI_PEI_PERMANENT_MEMORY_INSTALLED_PPI is installed. |
| |
| @retval EFI_SUCCESS Use of Temporary RAM was disabled. |
| @retval EFI_INVALID_PARAMETER Temporary RAM could not be disabled. |
| |
| **/ |
| typedef |
| EFI_STATUS |
| (EFIAPI * EFI_PEI_TEMPORARY_RAM_DONE) ( |
| VOID |
| ); |
| |
| /// |
| /// This is an optional PPI that may be produced by SEC or a PEIM. If present, it provide a service to |
| /// disable the use of Temporary RAM. This service may only be called by the PEI Foundation after the |
| /// transition from Temporary RAM to Permanent RAM is complete. This PPI provides an alternative |
| /// to the Temporary RAM Migration PPI for system architectures that allow Temporary RAM and |
| /// Permanent RAM to be enabled and accessed at the same time with no side effects. |
| /// |
| typedef struct _EFI_PEI_TEMPORARY_RAM_DONE_PPI { |
| EFI_PEI_TEMPORARY_RAM_DONE TemporaryRamDone; |
| } EFI_PEI_TEMPORARY_RAM_DONE_PPI; |
| |
| extern EFI_GUID gEfiTemporaryRamDonePpiGuid; |
| |
| #endif |