Executing system management mode code as virtual machine guest
US7418584B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2005 |
| Grant date | Aug 26, 2008 |
| Priority date | — |
| Expiry date | Feb 12, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/45533
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a register in a processor is programmable with an intercept indication indicative of whether or not an event that would cause a transition by the processor to a first mode is to be intercepted during execution of a guest. Responsive to the intercept indication and further responsive to detecting the event, execution circuitry in the processor is configured to exit the guest. In another embodiment, a method comprises: detecting an event that would cause a processor to transition to a first mode, wherein first code is to be executed in the first mode; and causing the first code to be executed in a guest responsive to the detecting. In still another embodiment, a computer accessible medium comprising instructions which when executed in response to detecting the event, cause the first code to be executed in a guest.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.