1. An apparatus, comprising: a management I/O device controller for managing initialization of a plurality of I/O devices coupled to a PCI Express (PCIe) fabric, wherein said management I/O device controller is configured for receiving a request to register a target interrupt register address of a first worker computing resource, wherein said target interrupt register address is associated with a first interrupt generated by a first I/O device coupled to said PCIe fabric; a mapping module of said management I/O device controller configured for mapping said target interrupt register address to a mapped interrupt register address of a domain in which said first I/O device resides; and a translating interrupt register table comprising a plurality of mapped interrupt register addresses in said domain that is associated with a plurality of target interrupt register addresses of a plurality of worker computing resources.