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:
Mar. 12, 2019
Filed:
Jul. 28, 2016
International Business Machines Corporation, Armonk, NY (US);
Kshamatha Deshpande, Bangalore, IN;
Monica J. Lemay, Cedar Park, TX (US);
Yogesh G. Patgar, Bangalore, IN;
Girish Shrigiri, Gulbarga, IN;
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
An aspect includes a method for sharing memory in a computer system that includes receiving a request, from a logical partition (LPAR) executing on a processor, for a page in a shared physical memory to be moved into a logical page of a logical memory of the LPAR. It is determined, by the hypervisor, that the page is physically located in a hypervisor paging device. It is determined whether the request is from a paging process executing at the LPAR to migrate the logical page to a local paging device to make room for an other logical page in the logical memory. Based on determining that the request is from the paging process, the logical page is marked to indicate that the physical page is on the hypervisor paging device and a new logical page is added to the logical memory for the other logical page.