SELECTIVE PREFETCHING OF PHYSICALLY SEQUENTIAL CACHE LINE TO CACHE LINE THAT INCLUDES LOADED PAGE TABLE ENTRY

A microprocessor includes a translation lookaside buffer and a first request to load into the microprocessor a page table entry in response to a miss of a virtual address in the translation lookaside buffer. The requested page table entry is included in a page table. The page table encompasses a plu...

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1. Verfasser: HOOKER RODNEY E
Format: Patent
Sprache:eng
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Zusammenfassung:A microprocessor includes a translation lookaside buffer and a first request to load into the microprocessor a page table entry in response to a miss of a virtual address in the translation lookaside buffer. The requested page table entry is included in a page table. The page table encompasses a plurality of cache lines including a first cache line that includes the requested page table entry. The microprocessor also includes hardware logic that makes a determination whether a second cache line physically sequential to the first cache line is outside the page table, and a second request to prefetch the second cache line into the microprocessor. The second request is selectively generated based at least on the determination made by the hardware logic.