Updated: 2021/Apr/14


VIRTIO(4)                    Device Drivers Manual                   VIRTIO(4)

NAME
     virtio - Para-virtualized I/O in a virtual machine

SYNOPSIS
     virtio* at fdt?
     virtio* at pci? dev ? function ?
     ld* at virtio?
     vioif* at virtio?
     viomb* at virtio?
     viornd* at virtio?
     vioscsi* at virtio?

DESCRIPTION
     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:

     ld(4)  A Disk device.

     vioif(4)
            An Ethernet device.

     viomb(4)
            A pseudo-device to release memory back to the hypervisor.

     viornd(4)
            An entropy source.

     vioscsi(4)
            A SCSI adapter.

SEE ALSO
     ld(4), pci(4), vioif(4), viomb(4), viornd(4), vioscsi(4)


     Rusty Russell, IBM Corporation, Virtio PCI Card Specification,
     http://ozlabs.org/~rusty/virtio-spec/.

HISTORY
     The virtio driver first appeared in NetBSD 6.0.

NetBSD 9.99                      June 7, 2018                      NetBSD 9.99