Watchdog processors in multicore systems
US7958396B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2006 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | Aug 16, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2101
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods are provided for securing a multicore computer chip with a watchdog processor. In a system with a watchdog process and any number of other processors and components, the watchdog processor monitors bus communications between the second processor and at least one third component. The watchdog processor may be further independently coupled to at least one of the other components so that it can monitor internal operations of such component, thereby acquiring detailed information about the specific operations of at least one component in the system. The watchdog processor can enforce an interaction policy on bus communications between components, as well as enforce an independent security policy on the monitored components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.