Reli: Hardware/Software Checkpoint and Recovery Scheme for Embedded Processors

Provided by: edaa
Topic: Hardware
Format: PDF
Checkpoint and Recovery (CR) allows computer systems to operate correctly even when compromised by transient faults. While many software systems and hardware systems for CR do exist, they are usually either too large, require major modifications to the software, too slow, or require extensive modifications to the caching schemes. In this paper, the authors propose a novel error-recovery management scheme, which is based upon re-engineering the instruction set. They take the native instruction set of the processor and enhance the microinstructions with additional micro-operations which enable check-pointing.

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