Emulating a host architecture in guest firmware
US7571090B2 · kind B2 · utility
20Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 2004 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Jul 31, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/45533
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods provide for emulating a host architecture in guest firmware. One aspect of the systems and methods comprises determining whether an emulated instruction would cause a transition into a legacy mode. A current execution context is converted into a legacy mode context, and the firmware emulator proceeds to a group of legacy mode instructions in a native mode for the processor. The firmware emulator detects an end instruction and converts the legacy context back to the guest firmware context.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.