| 1 | /** @file
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| 2 | Define the GUID gEdkiiFaultTolerantWriteGuid that will be used to build
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| 3 | FAULT_TOLERANT_WRITE_LAST_WRITE_DATA GUID hob and install PPI to inform the check
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| 4 | for FTW last write data has been done. The GUID hob will be only built if FTW last write was
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| 5 | still in progress with SpareComplete set and DestinationComplete not set.
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| 6 |
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| 7 | Copyright (c) 2013, Intel Corporation. All rights reserved.<BR>
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| 8 | This program and the accompanying materials are licensed and made available under
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| 9 | the terms and conditions of the BSD License that accompanies this distribution.
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| 10 | The full text of the license may be found at
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| 11 | http://opensource.org/licenses/bsd-license.php.
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| 12 |
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| 13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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| 14 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| 15 |
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| 16 | **/
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| 17 |
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| 18 | #ifndef _FAULT_TOLERANT_WRITE_H_
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| 19 | #define _FAULT_TOLERANT_WRITE_H_
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| 20 |
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| 21 | #define EDKII_FAULT_TOLERANT_WRITE_GUID \
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| 22 | { \
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| 23 | 0x1d3e9cb8, 0x43af, 0x490b, { 0x83, 0xa, 0x35, 0x16, 0xaa, 0x53, 0x20, 0x47 } \
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| 24 | }
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| 25 |
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| 26 | //
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| 27 | // FTW Last write data. It will be used as gEdkiiFaultTolerantWriteGuid GUID hob data.
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| 28 | //
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| 29 | typedef struct {
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| 30 | ///
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| 31 | /// Target address to be updated in FTW last write.
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| 32 | ///
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| 33 | EFI_PHYSICAL_ADDRESS TargetAddress;
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| 34 | ///
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| 35 | /// Spare address to back up the updated buffer.
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| 36 | ///
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| 37 | EFI_PHYSICAL_ADDRESS SpareAddress;
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| 38 | ///
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| 39 | /// The length of data that have been backed up in spare block.
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| 40 | /// It is also the length of target block that has been erased.
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| 41 | ///
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| 42 | UINT64 Length;
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| 43 | } FAULT_TOLERANT_WRITE_LAST_WRITE_DATA;
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| 44 |
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| 45 | //
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| 46 | // This GUID will be used to install PPI to inform the check for FTW last write data has been done.
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| 47 | // The related FAULT_TOLERANT_WRITE_LAST_WRITE_DATA GUID hob will be only built if
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| 48 | // FTW last write was still in progress with SpareComplete set and DestinationComplete not set.
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| 49 | // It means the target buffer has been backed up in spare block, then target block has been erased,
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| 50 | // but the target buffer has not been writen in target block from spare block.
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| 51 | //
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| 52 | extern EFI_GUID gEdkiiFaultTolerantWriteGuid;
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| 53 |
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| 54 | #endif
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