Method and apparatus for seeding differences in lock-stepped processors

Method and apparatus for seeding differences in lock-stepped processors

An apparatus, and a corresponding method, are used for seeding differences in lock stepped processors, the apparatus implemented on two or more processors operating in a lock step mode. Each of the two or more processors comprise a processor-specific resource operable to seed the differences, a proc...

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Hauptverfasser: Safford, Kevin David, Petsinger, Jeremy P
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creator Safford, Kevin David
Petsinger, Jeremy P
description An apparatus, and a corresponding method, are used for seeding differences in lock stepped processors, the apparatus implemented on two or more processors operating in a lock step mode. Each of the two or more processors comprise a processor-specific resource operable to seed the differences, a processor logic to execute a code sequence, in which an identical code sequence is executed by the processor logic of each of the two or more processors, and an output to provide a result of execution of the code sequence. The processor outputs, based on execution of the code sequence is provided to a lock step logic operable to read and compare the output of each of the two or more processors.
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title Method and apparatus for seeding differences in lock-stepped processors
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