mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-25 11:55:28 +01:00
35 lines
1.3 KiB
C
35 lines
1.3 KiB
C
/** @file
|
|
The EFI_SMM_SWAP_ADDRESS_RANGE_PROTOCOL is related to EDK II-specific implementation
|
|
and used to abstract the swap operation of boot block and backup block of FV in EFI
|
|
SMM environment. This swap is especially needed when updating the boot block of FV.
|
|
If a power failure happens during the boot block update, the swapped backup block
|
|
(now the boot block) can boot the machine with the old boot block backed up in it.
|
|
The swap operation is platform dependent, so other protocols such as SMM FTW (Fault
|
|
Tolerant Write) should use this protocol instead of handling hardware directly.
|
|
|
|
Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#ifndef __SMM_SWAP_ADDRESS_RANGE_H__
|
|
#define __SMM_SWAP_ADDRESS_RANGE_H__
|
|
|
|
#include <Protocol/SwapAddressRange.h>
|
|
|
|
#define EFI_SMM_SWAP_ADDRESS_RANGE_PROTOCOL_GUID \
|
|
{ \
|
|
0x67c4f112, 0x3385, 0x4e55, { 0x9c, 0x5b, 0xc0, 0x5b, 0x71, 0x7c, 0x42, 0x28 } \
|
|
}
|
|
|
|
//
|
|
// SMM Swap Address Range protocol structure is the same as Swap Address Range protocol.
|
|
// The SMM one is intend to run in SMM environment, which means it can be used by
|
|
// SMM drivers after ExitPmAuth.
|
|
//
|
|
typedef EFI_SWAP_ADDRESS_RANGE_PROTOCOL EFI_SMM_SWAP_ADDRESS_RANGE_PROTOCOL;
|
|
|
|
extern EFI_GUID gEfiSmmSwapAddressRangeProtocolGuid;
|
|
|
|
#endif
|