A computer system includes a communication adapter that connects a plurality of virtualized servers to one or more support system devices. The communication adapter includes a master lock register, a processing device, a queue, and a multitude of adapter access registers. Upon initialization, a virtual server asserts ownership over the communication adapter by writing its identification into the master lock register, if the register is empty. Service requests by images are transmitted to the communication adapter with an origination identification ("ID"). This ID is placed in one of the adapter access registers and the service request is placed in the queue. When a support system device responds to the service request, the response is married to the ID and broadcast back to all connected virtualized servers.
