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:
Mar. 23, 2021

Filed:

Aug. 31, 2017
Applicant:

Red Hat, Inc., Raleigh, NC (US);

Inventors:

Henri Han van Riel, Merrimack, NH (US);

Michael Tsirkin, Lexington, MA (US);

Assignee:

Red Hat, Inc., Raleigh, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/50 (2006.01); G06F 12/0882 (2016.01); G06F 12/0884 (2016.01); G06F 9/455 (2018.01);
U.S. Cl.
CPC ...
G06F 9/5016 (2013.01); G06F 9/45558 (2013.01); G06F 12/0882 (2013.01); G06F 12/0884 (2013.01); G06F 2009/45579 (2013.01); G06F 2009/45583 (2013.01);
Abstract

Systems and methods for memory page hints that account for multiple page sizes. An example method may comprise: determining, by a processing device executing a guest operating system, that a memory page size of the guest operating system is different from a memory page size of a hypervisor; adding, by the guest operating system, a guest memory page released by the guest operating system to a set of guest memory pages; determining in view of the memory page size of the hypervisor that the set of guest memory pages fills a hypervisor memory page; and providing an indication to the hypervisor that the hypervisor memory page is available for reuse.


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