Maintenance interface unit for servicing multiprocessor systems

Details Maintenance interface unit for servicing multiprocessor systems Maintenance interface unit for servicing multiprocessor systems

2007-04-24

2007-04-24

Baderman, Scott (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C712S216000, C712S220000, C714S013000

Reexamination Certificate

active

10617924

ABSTRACT:
An apparatus containing a maintenance interface unit is described. In one exemplary implementation, the apparatus includes a multiprocessor system and the maintenance interface unit. The multiprocessor system uses cache coherency for accessing memory. The maintenance interface unit is integrated within the multiprocessor system and is configured to provide a backdoor accessibility to the multiprocessor system on-behalf of a peripheral maintenance system. The maintenance interface unit is also configured to perform operations within the multiprocessor system while maintaining the cache coherency.

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