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:
Oct. 30, 2018
Filed:
Aug. 23, 2016
Hitachi, Ltd., Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a method of controlling a communication path among a plurality of virtual machines operating in one or more physical machines each of which includes one or more CPUs, memories, and I/O devices, allocating a virtual buffer serving as an alias of an actual buffer of a first virtual machine to a communication port that serves as a destination to which a communication path is changed from the first virtual machine and a second virtual machine directly or indirectly communicates with using a communication path change instruction as a trigger. Then, performing memory address translation on a region of the memory referred to by the virtual buffer, and generating the communication path between the first virtual machine and the second virtual machine by associating a region of the memory referred to by the first virtual machine and a region of the memory referred to by the second virtual machine.