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:
Dec. 12, 2017

Filed:

Sep. 23, 2013
Applicant:

Red Hat Israel, Ltd., Raanana, IL;

Inventors:

Michael Tsirkin, Yokneam Yillit, IL;

Gleb Natapov, Herzliya, IL;

Assignee:

Red Hat Israel, Ltd, Raanana, IL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 12/08 (2016.01); G06F 13/28 (2006.01);
U.S. Cl.
CPC ...
G06F 3/067 (2013.01); G06F 12/08 (2013.01); G06F 13/28 (2013.01);
Abstract

Systems and methods for implementing remote direct memory access (RDMA) with copy-on-write support. An example method may comprise: registering, with an RDMA adapter, by a first computer system, a mapping of a first virtual address to a first physical address, for transmitting a memory page identified by the first virtual address to a second computer system; registering, with the RDMA adapter, a mapping of a second virtual address to the first physical address; detecting an attempt to modify the memory page; copying the memory page to a second physical address; and registering, with the RDMA adapter, a mapping of a first virtual address to the second physical address.


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