MULTIPROCESSOR SYSTEM IMPLEMENTING VIRTUAL MEMORY USING A SHARED MEMORY, AND A PAGE REPLACEMENT METHOD FOR MAINTAINING PAGED MEMORY COHERENCE

摘要

A computer system (100) including a first processor (102), a second processor (104) in communication with the first processor (102), a memory (106) (i.e., a shared memory) coupled to the first processor (102) and the second processor (104), and a storage device (110 or 112) coupled to the first processor (102). The first processor (102) and the second processor (104) implement virtual memory using the memory (106). The first processor (102) maintains a first and second set of page tables in the memory (106). The first processor (102) uses the first set of page tables to access the memory locations witching the memory (106). The second processor (104) uses the second set of page tables, maintained by the first processor (102), to access the memory locations within the memory (106). A virtual memory page replacement method is also described for use in the computer system (100).