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:
Aug. 27, 2013
Filed:
Jun. 30, 2009
Shmuel Ben-yehuda, Haifa, IL;
Leah Shalev, Haifa, IL;
Orit Luba Wasserman, Haifa, IL;
Ben-ami Yassour, Haifa, IL;
Shmuel Ben-Yehuda, Haifa, IL;
Leah Shalev, Haifa, IL;
Orit Luba Wasserman, Haifa, IL;
Ben-Ami Yassour, Haifa, IL;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method of address translation in a computing system providing direct memory access (DMA) by way of one or more remote memory management units (MMUs) is provided. The method comprises intercepting a request for a first DMA operation forwarded by a first device to a second device; and translating a guest address included in the request to a first address according to a mapping referencing a memory frame in a memory of the second device. A local MMU increments a first reference count indicating number of active DMA operations directed to the memory frame and a second reference count indicating number of remote MMUs that have mapped the memory frame.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile