Extending existing storage devices in virtualized environments
US9940072B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2017 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | May 18, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45579
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, system and computer program product for providing a guest with access to a virtual storage on a physical storage using a peripheral component interface hub. In one embodiment, the method comprises the guest sending to the peripheral component interface hub a request to access the physical storage, the request including physical addresses of the physical storage, and the peripheral component interface hub sending specified information about the request to a hypervisor. This method further comprises the hypervisor determining whether to grant or to reject the request; and when the hypervisor grants the request, the hypervisor sending a configuration command to the peripheral component interface hub. This command includes a mapping of addresses from the physical storage to addresses from the virtual storage. In an embodiment, the peripheral component interface hub uses this mapping to replace the addresses in the request with translated virtual addresses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.