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:
Jun. 26, 2018
Filed:
Jun. 22, 2016
Mukund Gunti, Sunnyvale, CA (US);
Vishnu Sekhar, Sunnyvale, CA (US);
Rajesh Venkatasubramanian, San Jose, CA (US);
Mukund Gunti, Sunnyvale, CA (US);
Vishnu Sekhar, Sunnyvale, CA (US);
Rajesh Venkatasubramanian, San Jose, CA (US);
VMware, Inc., Palo Alto, CA (US);
Abstract
An 'old' hypervisor is upgraded to or otherwise replaced by a 'new' hypervisor without migrating virtual machines to a standby computer. The old hypervisor partitions the computer that it controls between a source partition and a target partition. The hypervisor and its virtual machines initially run on the source partition, while a new hypervisor is installed on the target partition. The virtual machines are migrated to the new hypervisor without physically moving the in-memory virtual-machine data. Instead, the old hypervisor sends memory pointers, and the new hypervisor claims the respective memory locations storing the virtual-machine data. After all virtual machines are migrated, the old hypervisor bequeaths the hypervisor memory and a last processor that the old hypervisor requires to run. The new hypervisor claims the bequeathed processor and hypervisor memory after the old hypervisor terminates to complete the upgrade/exchange.