Method and system for supporting input/output for a virtual machine
US7694301B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Jun 27, 2003 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Dec 30, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45579
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for supporting input/output for a virtual machine. The method includes the step of executing virtual machine application instructions, wherein the application instructions are executed using micro architecture code of a processor architecture. An I/O access is received from the virtual machine application. Virtual memory protection is used to generate an exception, wherein the exception is caused by the I/O access. A single step mode is entered to perform the I/O access using a host operating system. State data for the virtual machine application is updated in accordance with the I/O access. Subsequently, execution of the virtual machine application is resumed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.