Boot failure protection on smartNICs and other computing devices
US11803445B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2022 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | Jan 18, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1484
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Boot failure protection on smartNICs and other computing devices is described. During a power-on stage of a booting process for a computing device, a boot loading environment is directed to install an application programming interface (API) able to be invoked to control operation of a hardware-implemented watchdog. During an operating system loading stage of the booting process, the application programming interface is invoked to enable the hardware-implemented watchdog. During an operating system hand-off stage of the booting process, a last watchdog refresh of the hardware-implemented watchdog is performed, and execution of the boot loading environment is handed off to a kernel boot loader of an operating system. The application programming interface may not be accessible after the hand off to the kernel boot loader.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.