Patent · US Active

Suspending and resuming virtual machines

US9563461B2 · kind B2 · utility

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5References

5Claims

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Assignee

International Business Machines Corporation · US

Inventors

Jakob C. Lang · Altdorf, DE
Angel Nunez Mencias · Stuttgart, DE
Thomas Pohl · Holzgerlingen, DE
Martin Troester · Eppelheim, DE

Key dates

Filing date	Jun 11, 2015
Grant date	Feb 7, 2017
Priority date	—
Expiry date	Jun 11, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG06F2009/45575
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Suspending multiple virtual machines executed simultaneously a hypervisor a data processing system, including: sending, by a control instance, a request to the hypervisor to suspend virtual machines at a given future first point in time; the hypervisor determining if its virtual machines can be suspended at the first point in time, and, if the suspending is possible, returning a suspend handle to the control instance and storing the suspend handle, otherwise returning an invalid handle; when receiving a suspend handle from the hypervisor in return to the request to suspend virtual machines, the control instance sending a suspend command to the hypervisor, wherein the respective suspend handle is provided to the corresponding hypervisor; the hypervisor determining if the received suspend handle is equal to its stored handle and, if yes, suspending its virtual machines at the first point in time.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.