Execution of subset of driver code in separate protection domain
US10445257B2 · kind B2 · utility
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10References
20Claims
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Key dates
| Filing date | Jan 9, 2018 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Jan 9, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/53
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Described herein is a system for driver execution. A driver is loaded in a first domain with the driver controlling an associated device. In response to a request from the driver, the driver companion is loaded in a second domain different than the first domain, the second domain comprising a secure environment. The driver companion communicates with the associated device. Communications between the driver and the driver companion are managed (e.g., by an operating system framework). In response to a request from the driver, the driver companion is unloaded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.