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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.:

US 7779182 B1

PDFFull Text
Expired
Date of Patent:
Aug. 17, 2010

Filed:

Dec. 22, 2008

System for fully trusted adapter validation of addresses referenced in a virtual host transfer request

Applicants:

Richard Louis Arndt, Austin, TX (US);

Giora Biran, Zichron-Yaakov, IL;

Harvey Gene Kiel, Rochester, MN (US);

Vadim Makhervaks, Austin, TX (US);

Renato John Recio, Austin, TX (US);

Leah Shaley, Zichron-Yaakov, IL;

Jaya Srikrishnan, Wappingers Falls, NY (US);

Inventors:

Richard Louis Arndt, Austin, TX (US);

Giora Biran, Zichron-Yaakov, IL;

Harvey Gene Kiel, Rochester, MN (US);

Vadim Makhervaks, Austin, TX (US);

Renato John Recio, Austin, TX (US);

Leah Shaley, Zichron-Yaakov, IL;

Jaya Srikrishnan, Wappingers Falls, NY (US);

Assignee:

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

Attorneys:

Yee & Associates, P.C.

Diana R. Gerhardt

Primary Examiner:

Henry W H. Tsai

Assistant Examiner:

Tushar S Shah

Int. Cl.
CPC ...
G06F 13/12 (2006.01); G06F 13/28 (2006.01); G06F 12/00 (2006.01); H04L 12/28 (2006.01); H04J 3/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A computer program product and distributed data processing system that allows a single physical I/O adapter, such as a PCI, PCI-X, or PCI-E adapter, to validate that a direct memory access address referenced by an incoming I/O transaction that was initiated through a memory mapped I/O operation are associated with a virtual adapter or virtual resource that is referenced by the incoming memory mapped I/O operation is provided. Specifically, the present invention is directed to a mechanism for sharing conventional PCI (Peripheral Component Interconnect) I/O adapters, PCI-X I/O Adapters, PCI-Express I/O Adapters, and, in general, any I/O adapter that uses a memory mapped I/O interface for communications. A single physical I/O adapter validates that one or more direct memory access addresses referenced by an incoming I/O transaction initiated through a memory mapped I/O operation are associated with a virtual adapter or virtual resource that is referenced by the incoming memory mapped I/O operation.

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Arndt, Richard. (2010). System for fully trusted adapter validation of addresses referenced in a virtual host transfer request (U.S. Patent No. 7779182). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7779182

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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