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Protection domain groups to isolate access to memory windows

  • US 8,291,176 B2
  • Filed: 03/27/2003
  • Issued: 10/16/2012
  • Est. Priority Date: 03/27/2003
  • Status: Active Grant
First Claim
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1. A protection domain group, comprising:

  • a memory region associated with a process;

    a plurality of memory windows associated with the memory region;

    a plurality of protection domains, each of the protection domains corresponding to one of the plurality of memory windows, each of the plurality of protection domains being adapted to allow access to the memory region only via the corresponding one of the plurality of memory windows to provide isolation between clients or processes seeking to access each one of the plurality of memory windows; and

    an identifier assigned to the protection domain group and used to verify access to each one of the plurality protection domains within the protection domain group.

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