1. An apparatus, comprising: a virtual machine operating within a virtual environment; a unified virtual network interface instance included within an operating system of said virtual machine and providing device specific network capability for said virtual machine; a network capability provider instance operating within an operating system of a host system and interfacing with said unified virtual network interface instance to provide said device specific network capability for said virtual machine through said host system; and a network capability provider comprising said network capability provider instance for enforcing sharing of host-wide network capability as implemented through one or more unified virtual network interfaces supported by said host system.