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:
Oct. 14, 2025

Filed:

Aug. 30, 2022
Applicant:

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

Inventor:

Michael Tsirkin, Yokneam Illit, IL;

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 9/455 (2018.01); G06F 12/14 (2006.01); G06F 21/64 (2013.01);
U.S. Cl.
CPC ...
G06F 9/45558 (2013.01); G06F 12/1408 (2013.01); G06F 21/64 (2013.01); G06F 2009/45583 (2013.01);
Abstract

Memory deduplication for encrypted virtual machines is provided by identifying a page in a private memory of an encrypted virtual machine to place into a public memory in a virtualization environment; calculating a checksum for the page and storing the checksum in the private memory of the encrypted virtual machine; passing the page to a hypervisor of the virtualization environment to place into the public memory; calling the page via an application running in the encrypted virtual machine; and in response to verifying the page received from the public memory against the checksum stored in the private memory, proceeding with operation of the application using the page.


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