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49 lines
1.7 KiB
C
49 lines
1.7 KiB
C
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/** @file
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Define the GUID gEdkiiFaultTolerantWriteGuid that will be used to build
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FAULT_TOLERANT_WRITE_LAST_WRITE_DATA GUID hob and install PPI to inform the check
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for FTW last write data has been done. The GUID hob will be only built if FTW last write was
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still in progress with SpareComplete set and DestinationComplete not set.
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Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _FAULT_TOLERANT_WRITE_H_
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#define _FAULT_TOLERANT_WRITE_H_
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#define EDKII_FAULT_TOLERANT_WRITE_GUID \
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{ \
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0x1d3e9cb8, 0x43af, 0x490b, { 0x83, 0xa, 0x35, 0x16, 0xaa, 0x53, 0x20, 0x47 } \
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}
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//
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// FTW Last write data. It will be used as gEdkiiFaultTolerantWriteGuid GUID hob data.
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//
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typedef struct {
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///
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/// Target address to be updated in FTW last write.
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///
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EFI_PHYSICAL_ADDRESS TargetAddress;
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///
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/// Spare address to back up the updated buffer.
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///
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EFI_PHYSICAL_ADDRESS SpareAddress;
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///
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/// The length of data that have been backed up in spare block.
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/// It is also the length of target block that has been erased.
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///
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UINT64 Length;
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} FAULT_TOLERANT_WRITE_LAST_WRITE_DATA;
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//
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// This GUID will be used to install PPI to inform the check for FTW last write data has been done.
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// The related FAULT_TOLERANT_WRITE_LAST_WRITE_DATA GUID hob will be only built if
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// FTW last write was still in progress with SpareComplete set and DestinationComplete not set.
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// It means the target buffer has been backed up in spare block, then target block has been erased,
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// but the target buffer has not been writen in target block from spare block.
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//
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extern EFI_GUID gEdkiiFaultTolerantWriteGuid;
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#endif
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