IMPLEMENTATION OF MEMORY ACCESS CONTROL USING OPTIMIZATIONS

摘要

MECHANISMS ARE DISCLOSED THAT MAY ALLOW CERTAIN MEMORY ACCESS CONTROL ALGORITHMS TO BE IMPLEMENTED EFFICIENTLY.WHEN MEMORY ACCESS CONTROL IS BASED ON CONTROLLING CHANGES TO AN ADDRESS TRANSLATION MAP (OR SET OF MAPS), IT MAY BE NECESSARY TO DETERMINE WHETHER A PARTICULAR MAP CHANGE WOULD ALLOW MEMORY TO BE ACCESSED IN AN IMPERMISSIBLE WAY. CERTAIN DATA ABOUT THE MAP MAY BE CACHED IN ORDER TO ALLOW THE DETERMINATION TO BE MADE MORE EFFICIENTLY THAN PERFORMING AN EVALUATION OF THE ENTIRE MAP.