Managing guest partition access to physical devices
US10394585B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2017 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Jul 4, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/657
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computing device includes a host, one or more guest partitions, and one or more physical devices. A physical device can be virtualized, at least in part, by the host and made available to the guest partitions. A physical device includes both a control plane and a data plane. The host provides direct access to at least part of the data plane of a physical device to a guest partition. However, the host virtualizes the control plane of the physical device, exposing a control plane for the physical device to the guest partition that is not the actual control plane of the physical device. Requests to access (e.g., read, write, modify, etc.) the control plane of the physical device are received by the host from the guest partition, and converted as appropriate to the control plane for the physical device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.