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8a2d4996 | 1 | /** @file\r |
d1102dba LG |
2 | The EFI_SMM_SWAP_ADDRESS_RANGE_PROTOCOL is related to EDK II-specific implementation\r |
3 | and used to abstract the swap operation of boot block and backup block of FV in EFI\r | |
4 | SMM environment. This swap is especially needed when updating the boot block of FV.\r | |
5 | If a power failure happens during the boot block update, the swapped backup block\r | |
6 | (now the boot block) can boot the machine with the old boot block backed up in it.\r | |
7 | The swap operation is platform dependent, so other protocols such as SMM FTW (Fault\r | |
8a2d4996 | 8 | Tolerant Write) should use this protocol instead of handling hardware directly.\r |
9 | \r | |
d1102dba | 10 | Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>\r |
9d510e61 | 11 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
8a2d4996 | 12 | \r |
13 | **/\r | |
14 | \r | |
15 | #ifndef __SMM_SWAP_ADDRESS_RANGE_H__\r | |
16 | #define __SMM_SWAP_ADDRESS_RANGE_H__\r | |
17 | \r | |
18 | #include <Protocol/SwapAddressRange.h>\r | |
19 | \r | |
20 | #define EFI_SMM_SWAP_ADDRESS_RANGE_PROTOCOL_GUID \\r | |
21 | { \\r | |
22 | 0x67c4f112, 0x3385, 0x4e55, { 0x9c, 0x5b, 0xc0, 0x5b, 0x71, 0x7c, 0x42, 0x28 } \\r | |
23 | }\r | |
24 | \r | |
25 | //\r | |
d1102dba LG |
26 | // SMM Swap Address Range protocol structure is the same as Swap Address Range protocol.\r |
27 | // The SMM one is intend to run in SMM environment, which means it can be used by\r | |
28 | // SMM drivers after ExitPmAuth.\r | |
29 | //\r | |
8a2d4996 | 30 | typedef EFI_SWAP_ADDRESS_RANGE_PROTOCOL EFI_SMM_SWAP_ADDRESS_RANGE_PROTOCOL;\r |
31 | \r | |
32 | extern EFI_GUID gEfiSmmSwapAddressRangeProtocolGuid;\r | |
33 | \r | |
34 | #endif\r |