Partially virtualizing an I/O device for use by virtual machines
US7613847B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2006 |
| Grant date | Nov 3, 2009 |
| Priority date | — |
| Expiry date | Dec 26, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45579
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer system comprises a physical computer and a virtual machine monitor executable on the physical computer and configured to create an emulation of at least one guest operating system adapted to control the physical computer. The computer system further comprises a host executable on the physical computer that manages physical resources coupled to the physical computer on behalf of the virtual machine monitor and the at least one guest operating system. The host is adapted to virtualize a Peripheral Component Interconnect (PCI) configuration address space whereby the at least one guest operating system controls PCI input/output (I/O) devices directly and in absence of I/O emulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.