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A domain that manages virtualization policies.
A domain that manages the PCIe fabric.
A domain that has exclusive access to IO devices assigned
PCIe fabric components such as root-complexes, root-ports,
switches, bridges; configuration space registers of endpoints.
Single or multiple PCI functions
Usually one piece of silicon
Smallest independent addressable unit in a PCI fabric
One set of PCI configuration space registers
Lightweight PCI function in hardware
Looks almost the same as PCI function to software