Conflict detection circuit for resolving access conflict to peripheral device by multiple virtual machines
US9740518B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2012 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Jan 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45591
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system-on-chip device comprises a core supporting a first virtual machine image and a virtual machine monitoring unit capable of communicating with the first virtual machine image. A shareable resource is also provided as well as a conflict detection unit capable of communicating with the virtual machine monitoring unit and the first virtual machine image. The conflict detection unit is arranged to detect, when in use, an access conflict caused by more than one virtual machine image attempting to access initially the shareable resource. The conflict detection unit is arranged to refer, when in use, the access conflict in response to detection thereof to the virtual machine monitoring unit for resolving of the access conflict, thereby handling the access conflict before the virtual machine monitoring unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.