Methods and systems for allocating, one or more virtual functions of a plurality of virtual functions associated with physical functions of I/O interface devices of a computing device are described. One method includes managing one or more physical functions of an I/O interface device within an interconnect partition of a multi-partition virtualization system implemented at least in part on the computing device. The method further includes, during a boot process of a second partition on the computing device, parsing a file to determine an assignment of one or more virtual functions to the second partition and associate each of the one or more virtual functions to corresponding physical functions.