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:
Nov. 04, 2025
Filed:
Jun. 08, 2023
Red Hat, Inc., Raleigh, NC (US);
Michael Tsirkin, Yokneam Illit, IL;
Karen Noel, Pembroke, NH (US);
Red Hat, Inc., Raleigh, NC (US);
Abstract
Systems and methods for accelerating hypercalls for nested virtual machines. An example method comprises: executing, by a host computer system, a Level 0 hypervisor managing a Level 1 virtual machine (VM); receiving, by a Level 1 hypervisor managing a Level 2 VM, a first function component from a Level 2 hypervisor managing a Level 3 VM, wherein the first function component performs a first functionality associated with a hypercall issued by the Level 3 VM; generating, by the Level 1 hypervisor, a second function component that performs a second functionality associated with the hypercall issued by the Level 2 VM; and responsive to detecting the hypercall issued by the Level 3 VM, causing the Level 0 hypervisor to execute at least one of: the first function component or the second function component.