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:
Feb. 17, 2026

Filed:

Aug. 30, 2023
Applicant:

Virtuozzo International Gmbh, Schaffhausen, CH;

Inventor:

Denis Lunev, Moscow, RU;

Assignee:

Virtuozzo International GmbH, Schaffhausen, CH;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/455 (2018.01); G06F 9/48 (2006.01);
U.S. Cl.
CPC ...
G06F 9/45558 (2013.01); G06F 9/4812 (2013.01); G06F 9/4856 (2013.01); G06F 2009/4557 (2013.01); G06F 2009/45579 (2013.01);
Abstract

Disclosed herein are systems and method for live migration of a guest OS from a source computing device to a target computing device, the method comprising: interrupting execution of the guest OS in a hypervisor on the source computing device, transferring a state of the guest OS to a hypervisor on the target computing device, creating fake I/O requests corresponding to pending I/O requests, resuming execution of the guest OS in the hypervisor on the target computing device without waiting for completion of the pending I/O requests on the source computing device, for each of the pending I/O requests, sending, by the source computing device, a notification about completion of the pending I/O request, and for each pending I/O request for which the notification about completion is received, completing, by the hypervisor on the target computing device, a fake I/O request corresponding to the pending I/O request.


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