METHOD AND SYSTEM OF VERIFYING PROPER EXECUTION OF A SECURE MODE ENTRY SEQUENCE

A method and system of verifying proper execution of a secure mode entry sequence. At least some of the exemplary embodiments may be a method comprising delivering an instruction from a memory to a processor across an instruction bus (the instruction at least partially configures the processor for s...

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Bibliographische Detailangaben
Hauptverfasser: Conti, Gregory Remy Philippe, Azema, Jerome Laurent
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method and system of verifying proper execution of a secure mode entry sequence. At least some of the exemplary embodiments may be a method comprising delivering an instruction from a memory to a processor across an instruction bus (the instruction at least partially configures the processor for secure mode of operation different that privilege modes of the processor), verifying delivery of the instruction across the instruction bus, and checking for proper execution of the instruction using a trace port of the processor.