Utilizing hand-off blocks in system management mode to allow independent initialization of SMBASE between PEI and DXE phases
US7840792B2 · kind B2 · utility
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5References
18Claims
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Inventor
Key dates
| Filing date | Apr 25, 2007 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | May 30, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/4418
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and computer program products are provided for making PEI phase implementation independent from DXE phase implementation in a computer system implementing the Extensible Firmware Interface standard. For example, one embodiment of the present invention uses a hand-off block to make SMBASE initialization in PEI independent form SMBASE initialization in DXE. In another embodiment of the present invention, PEI phase is entered in order to resume from an S3 standby state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.