Virtual machine migration using free page hinting
US9552233B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2015 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Sep 10, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/4557
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods are disclosed for migrating a virtual machine from a source hypervisor to a destination hypervisor. An example method of migrating a virtual machine from a source hypervisor to a destination hypervisor includes receiving, by a source hypervisor running a virtual machine, an indication to migrate the virtual machine to a destination hypervisor. A guest runs on the virtual machine and is allocated guest memory. The method also includes reading, by the source hypervisor, a free value indicating whether a memory page in the guest memory is active. The method further includes transmitting the memory page to the destination hypervisor if the free value indicates that the memory page is active. The method also includes determining to not transmit the memory page to the destination hypervisor if the free value indicates that the memory page is inactive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.