/** @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 |