Data Structures
struct	_EFI_PEI_TEMPORARY_RAM_DONE_PPI

Macros
#define	EFI_PEI_TEMPORARY_RAM_DONE_PPI_GUID { 0xceab683c, 0xec56, 0x4a2d, { 0xa9, 0x6, 0x40, 0x53, 0xfa, 0x4e, 0x9c, 0x16 } }

Typedefs
typedef EFI_STATUS(EFIAPI *	EFI_PEI_TEMPORARY_RAM_DONE) (VOID)

typedef struct _EFI_PEI_TEMPORARY_RAM_DONE_PPI	EFI_PEI_TEMPORARY_RAM_DONE_PPI

Variables
EFI_GUID	gEfiTemporaryRamDonePpiGuid

Detailed Description

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.
SPDX-License-Identifier: BSD-2-Clause-Patent

Revision Reference:: This PPI is introduced in PI Version 1.2.1.

Definition in file TemporaryRamDone.h.

Macro Definition Documentation

◆ EFI_PEI_TEMPORARY_RAM_DONE_PPI_GUID

#define EFI_PEI_TEMPORARY_RAM_DONE_PPI_GUID { 0xceab683c, 0xec56, 0x4a2d, { 0xa9, 0x6, 0x40, 0x53, 0xfa, 0x4e, 0x9c, 0x16 } }

Definition at line 16 of file TemporaryRamDone.h.

Typedef Documentation

◆ EFI_PEI_TEMPORARY_RAM_DONE

typedef EFI_STATUS(EFIAPI * EFI_PEI_TEMPORARY_RAM_DONE) (VOID)

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.

Return values

EFI_SUCCESS	Use of Temporary RAM was disabled.
EFI_INVALID_PARAMETER	Temporary RAM could not be disabled.

Definition at line 28 of file TemporaryRamDone.h.

◆ EFI_PEI_TEMPORARY_RAM_DONE_PPI

typedef struct _EFI_PEI_TEMPORARY_RAM_DONE_PPI EFI_PEI_TEMPORARY_RAM_DONE_PPI

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.

Data Structures

Macros