Multiprocessing computer system employing a cluster protection mechanism

摘要: A multiprocessing system includes a plurality of nodes interconnected through global interconnect network which supports cluster communications. An initiating node may launch request to remote node's memory. protection mechanism is employed within interface the node. The interface, coupled between and local bus node, memory management unit, referred as MMU, including entries are selectable on page basis. Depending upon particular address received transaction, an entry unit retrieved. various fields be used protect against accesses by unauthorized nodes, specify physical conveyed bus. field further provided control type operation performed in response interface. In one implementation, several different command types specified normal operations, atomic test set I/O operations interrupt among others. Additional registers parameters and/or functionality. For example, embodiment, register store values indicative other allowed access this