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Method and system for preventing unauthorized processor mode switches

  • US 20070150730A1
  • Filed: 01/30/2006
  • Published: 06/28/2007
  • Est. Priority Date: 12/23/2005
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • a processor adapted to activate multiple security levels for the system; and

    a monitoring device coupled to the processor and employing security rules pertaining to said multiple security levels;

    wherein the monitoring device restricts usage of the system if the processor activates said security levels in a sequence contrary to the security rules.

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