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Managing a secure platform using a hierarchical executive architecture in isolated execution mode

  • US 20050188198A1
  • Filed: 04/26/2005
  • Published: 08/25/2005
  • Est. Priority Date: 03/31/2000
  • Status: Abandoned Application
First Claim
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1. A processing system, comprising:

  • a processor to execute in an isolated execution mode in a ring 0 operating mode, wherein the processor also supports one or more higher ring operating modes, as well as a normal execution mode in at least the ring 0 operating mode;

    memory responsive to the processor; and

    a machine-accessible medium responsive to the processor, the machine-accessible medium having instructions which, when executed by the processor, result in the processing system performing operations comprising;

    configuring the processor to run in the isolated execution mode;

    configuring the processing system to establish an isolated memory area in the memory, wherein the processing system does not allow access to the isolated memory area if the processor is not in the isolated execution mode;

    loading initialization software into the isolated memory area; and

    providing a manifest for the initialization software, wherein the manifest represents the initialization software.

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