Patent ID: 7783788

Claim:
An apparatus, comprising a memory; one or more processors; an input/output (I/O) fabric interface; an I/O subsystem physical interface; I/O subsystem device protocol stack logic operative to control data transfer with one or more peripheral systems over the I/O subsystem physical interface; and virtualization logic encoded in one or more tangible media for execution and when executed operable to cause the one or more processors to: establish one or more persistent control connections to virtual I/O peripheral subsystem interface driver modules of one or more application servers; transmit I/O peripheral subsystem configurations to the one or more application servers over the respective one or more persistent control connections; emulate, relative to the one or more peripheral systems, the one or more application servers; intermediate I/O subsystem traffic between the one or more application servers and the one or more peripheral systems; and control utilization of resources of the I/O subsystem physical interface by the one or more application servers according to a configured allocation of resources for the I/O subsystem physical interface across the one or more application servers.