Watchdog processors in multicore systems

Details Watchdog processors in multicore systems Watchdog processors in multicore systems

2011-06-07

2011-06-07

Baderman, Scott T (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S026000, C714S039000

Reexamination Certificate

active

07958396

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.

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