METHOD AND APPARATUS FOR SUPPORTING ADDRESS TRANSLATION IN MULTIPROCESSOR VIRTUAL MACHINE ENVIRONMENT

摘要

PROBLEM TO BE SOLVED: To determine whether entries in a guest translation data structure have been modified by a virtual machine.

SOLUTION: The determination is made based on metadata extracted from a shadow translation data structure maintained by a virtual machine monitor and attributes associated with entries in the shadow translation data structure. The method includes: synchronizing entries in the shadow translation data structure that correspond to the modified entries in the guest translation data structure with the modified entries in the guest translation data structure; and determining which entries to keep in the active entry list, based at least in part on attributes associated with corresponding entries in the shadow translation data structure identifying which of the plurality of processors owns each entry in the active entry list.

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