Translation lookaside buffer
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United States of America Patent
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Nov 28, 2017
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N/A
app pub date -
May 18, 2015
filing date -
May 18, 2015
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Abstract
Embodiments disclosed pertain to apparatuses, systems, and methods for Translation Lookaside Buffers (TLBs) that support virtualization and multi-threading. Disclosed embodiments pertain to a TLB that includes a content addressable memory (CAM) with variable page size entries and a set associative memory with fixed page size entries. The CAM may include: a first set of logically contiguous entry locations, wherein the first set comprises a plurality of subsets, and each subset comprises logically contiguous entry locations for exclusive use of a corresponding virtual processing element (VPE); and a second set of logically contiguous entry locations, distinct from the first set, where the entry locations in the second set may be shared among available VPEs. The set associative memory may comprise a third set of logically contiguous entry locations shared among the available VPEs distinct from the first and second set of entry locations.
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