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82eea366 1/** @file\r
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2 DXE SMM Ready To Lock protocol introduced in the PI 1.2 specification.\r
3\r
4 According to PI 1.4a specification, this UEFI protocol indicates that\r
5 resources and services that should not be used by the third party code\r
6 are about to be locked.\r
7 This protocol is a mandatory protocol published by PI platform code.\r
8 This protocol in tandem with the End of DXE Event facilitates transition\r
9 of the platform from the environment where all of the components are\r
10 under the authority of the platform manufacturer to the environment where\r
11 third party extensible modules such as UEFI drivers and UEFI applications\r
12 are executed. The protocol is published immediately after signaling of the\r
13 End of DXE Event. PI modules that need to lock or protect their resources\r
14 in anticipation of the invocation of 3rd party extensible modules should\r
15 register for notification on installation of this protocol and effect the\r
16 appropriate protections in their notification handlers. For example, PI\r
17 platform code may choose to use notification handler to lock SMM by invoking\r
18 EFI_SMM_ACCESS2_PROTOCOL.Lock() function.\r
19\r
2f208e59 20 Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>\r
9344f092 21 SPDX-License-Identifier: BSD-2-Clause-Patent\r
82eea366 22\r
23**/\r
24\r
25#ifndef _DXE_SMM_READY_TO_LOCK_H_\r
26#define _DXE_SMM_READY_TO_LOCK_H_\r
27\r
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28#include <Protocol/DxeMmReadyToLock.h>\r
29\r
2f88bd3a 30#define EFI_DXE_SMM_READY_TO_LOCK_PROTOCOL_GUID EFI_DXE_MM_READY_TO_LOCK_PROTOCOL_GUID\r
82eea366 31\r
2f88bd3a 32extern EFI_GUID gEfiDxeSmmReadyToLockProtocolGuid;\r
82eea366 33\r
34#endif\r