| VIRTIO(4) | Device Drivers Manual | VIRTIO(4) | 
virtio —
virtio* at fdt?
virtio* at pci? dev ? function ?
ld* at virtio?
vioif* at virtio?
viomb* at virtio?
viornd* at virtio?
vioscsi* at virtio?
virtio defines an interface for efficient, standard and
  extensible I/O between the hypervisor and the virtual machine. The
  virtio device driver represents an emulated device
  that the hypervisor makes available to the virtual machine.
virtio driver itself provides the core
    infrastructure to communicate with the hypervisor (called virtqueues) and
    supports the following devices:
Rusty Russell, IBM Corporation, Virtio PCI Card Specification, http://ozlabs.org/~rusty/virtio-spec/.
virtio driver first appeared in
  NetBSD 6.0.
| June 7, 2018 | NetBSD 9.4 |