摘要 |
In a multi-processor system including a plurality of processors capable of being operatively coupled to the main memory and each processor including an associated local memory, and at least one main processor operable to control access by the processors to data within the main memory and within the processors, methods and apparatus provide for: entering a secure mode of operation within at least one of the processors in which no requests initiated by others of the processors for data transfers into or out of the at least one processor are serviced, but such transfers initiated by the at least one processor are serviced subject to the access controlled by the main processing unit; and using the main processing unit to exclude access to data associated with at least one further processor by others of the processors except for the at least one processor. |