Advanced Operating Systems   COMP9242 2002/S2

UNSW

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Protection Domain Manipulation: All capability presentation is implicit (via clists). A thread can manipulate its protection domain: by modifying its clists, provided that the APD contains the clists. A thread can be set up so that it's APD: does not contain the clists defining it, does not contain write access to any ``public'' objects. Such a thread is confined.