×

Hardware Based Mandatory Access Control

  • US 20100088739A1
  • Filed: 10/06/2008
  • Published: 04/08/2010
  • Est. Priority Date: 10/06/2008
  • Status: Active Grant
First Claim
Patent Images

1. A method, in a data processing system, for performing hardware based access control, comprising:

  • associating, in hardware of the data processing system, an instruction access policy label with an instruction to be processed by a processor of the data processing system;

    associating, in hardware of the data processing system, an operand access policy label with data in the data processing system;

    passing the instruction access policy label along with the instruction through one or more hardware functional units of the processor;

    passing the operand access policy label along with the data through the one or more hardware functional units of the processor; and

    utilizing one or more hardware implemented policy engines associated with the one or more hardware functional units of the processor to control access by the instruction to the data based on the instruction access policy label and the operand access policy label.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×