The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 12, 2020

Filed:

Dec. 04, 2018
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

David Campbell, Austin, TX (US);

Dwain A. Hicks, Pflugerville, TX (US);

Christian Jacobi, West Park, NY (US);

Kerey M. Tassin, Austin, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 9/38 (2018.01); G06F 9/455 (2018.01); G06F 12/14 (2006.01); G06F 12/1009 (2016.01); G06F 9/46 (2006.01); G06F 12/02 (2006.01); G06F 12/10 (2016.01);
U.S. Cl.
CPC ...
G06F 9/3834 (2013.01); G06F 9/45558 (2013.01); G06F 9/468 (2013.01); G06F 12/0292 (2013.01); G06F 12/10 (2013.01); G06F 12/1009 (2013.01); G06F 12/14 (2013.01); G06F 2009/45583 (2013.01);
Abstract

A method of optimized congruence class matching for concurrent memory translation requests to avoid memory access conflicts with respect to a virtual memory managed by a processor is provided. The method includes initiating a first table walk by a first memory access of the concurrent memory translation requests and pending a subsequent table walk initiated by a subsequent memory access of the concurrent memory translation requests. Then, the method determines whether the subsequent table walk will cause a memory access conflict with the first table walk based on the optimized congruence class matching. The subsequent memory access is rejected when the subsequent table walk will cause the memory access conflict with the first table walk.


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