Network device: PCI Passthrough support in Hyper-V (Windows Server 2012 R2)

HI,

   I know that Hyper-V does support SR-IOV where it attaches a VF for a PCIe Network device and assigns a Network adapter to a specific Virtual Machine but I was wondering If Hyper-V has options to enable PCIe Passthrough for a network device without SR-IOV for a VM. Let me know If you need more details.

Thanks...