Method and system for managing bandwidth in a virtualized system
US7774794B2 · kind B2 · utility
2Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2005 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Jun 8, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2213/0042
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of improving USB device virtualization to prevent bus bandwidth from being over allocated when isochronous USB devices are attached to multiple virtual machines by attaching a dummy device to each virtual machine which will mimic the bandwidth reservations made by real devices in other virtual machines, thus allowing each virtual machine to determine the true available bandwidth. The dummy devices are represented by incorporating a dummy device driver in each virtual machine and emulating the dummy device in software in the VMM.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.