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:
Feb. 21, 2023
Filed:
Dec. 30, 2019
Red Hat, Inc., Raleigh, NC (US);
Michael Tsirkin, Lexington, MA (US);
Andrea Arcangeli, Imola, IT;
Red Hat, Inc., Raleigh, NC (US);
Abstract
A guest operating system (OS) of a virtual machine (VM) receives a first request from an application to enable memory deduplication for a memory page associated with the application, identifies a mergeable memory range for memory space of the guest OS, where the mergeable memory rage is associated with guest OS memory pages to be deduplicated, and maps, in a page table of the guest OS, a page table entry for the memory page to a memory address within the mergeable memory range. The guest OS causes a hypervisor to enable deduplication for the memory page responsive to detecting an access of the memory page by the application.