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:
Aug. 08, 2017

Filed:

Jun. 01, 2015
Applicant:

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

Inventors:

Bartholomew Blaner, Underhill Center, VT (US);

Jay G. Heaslip, Williston, VT (US);

Kenneth A. Lauricella, Colchester, VT (US);

Jeffrey A. Stuecheli, Austin, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/1009 (2016.01);
U.S. Cl.
CPC ...
G06F 12/1009 (2013.01); G06F 2212/1016 (2013.01); G06F 2212/65 (2013.01); G06F 2212/657 (2013.01);
Abstract

According to embodiments of the present disclosure, a method for invalidating an address translation entry in an effective address to real address translation table (ERAT) for a computer memory can include receiving a first invalidation request. According to some embodiments, the method may also include determining that a first entry in the ERAT corresponds with the first invalidation request, wherein the ERAT has a plurality of entries, each entry in the plurality of entries having an indicator. In particular embodiments, the method may then determine that a first indicator associated with the first entry indicates that the first entry is not being used by any of a plurality of memory access entities (MAE), wherein a first MAE can concurrently use a same entry as a second MAE. The first entry may then be invalidated in response to determining that the first entry is not being used.


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