Dynamic allocation and assignment of virtual functions within fabric

A method of allocating I/O functions to partitions included within a multi-partition virtualization system implemented at least in part on the computing device, the method comprising:

• during boot time of a partition, allocating base address registers for each of a plurality of virtual functions associated with the partition;
• and
• during boot time of the partition, parsing a tile defining a configuration of a virtual function and an association to a physical function;
• wherein the virtual function is associated with the physical function and in an active state prior to boot into an operating system within the partition.

A virtualization system including a plurality of partitions provided on a computing device including at least one I/O device having one or more physical functions, the virtualization system comprising:

• an interconnect service partition including a single root I/O manager, the single-root I/O manager including a plurality of physical function device drivers corresponding to physical functions of I/O devices of the computing device;
• one or more guest partitions, the guest partitions each including an operating system into which the partition boots;
• and
• a file defining one or more virtual functions associated with each of the physical functions, and associating a virtual function from among the one or more virtual functions with a guest partition from among the one or more guest partitions;
• wherein, during boot of a guest partition from among the one or more guest partitions, a boot process reads the file to associate at least one virtual function with the guest partition and to activate the at least one virtual function prior to completion of the boot process.