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.
Patent No.:
Date of Patent:
Jun. 13, 2017
Filed:
Sep. 01, 2015
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Jesse P. Arroyo, Rochester, MN (US);
Rama K. Hazari, Hyderabad, IN;
Sakethan R. Kotta, Hyderabad, IN;
Kumaraswamy Sripathy, Hyderabad, IN;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/10 (2016.01); G06F 12/1081 (2016.01); G06F 13/28 (2006.01); G06F 12/1009 (2016.01);
U.S. Cl.
CPC ...
G06F 12/1081 (2013.01); G06F 12/1009 (2013.01); G06F 13/28 (2013.01); G06F 2212/656 (2013.01); G06F 2212/657 (2013.01);
Abstract
An I/O DMA address may be translated for a flexible number of entries in a translation validation table (TVT) for a partitionable endpoint number, when a particular entry in the TVT is accessed based on the partitionable endpoint number. A presence of an extended mode bit can be detected in a particular TVT entry. Based on the presence of the extended mode bit, an entry in the extended TVT can be accessed and used to translate the I/O DMA address to a physical address.