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.\" Copyright (C) 2011 Minoura Makoto.
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.Dd
.Dt VIRTIO 4
.Os
.Sh NAME
.Nm virtio
.Nd VirtIO PCI device core driver
.Sh SYNOPSIS
.Cd "virtio* at pci? dev ? function ?"
.Cd "viomb*  at virtio?"
.Cd "ld*     at virtio?"
.Cd "vioif*  at virtio?"
.Sh DESCRIPTION
The VirtIO devices are virtual devices used in Linux KVM, Qemu,
Oracle VM VirtualBox and other virtual machine guest environment.
Currently network card, block device, console (serial port), entropy source,
memory ballooning and some other devices are defined in the document
"Virtio PCI Card Specification".
.Pp
The
.Nx
.Nm
driver provides the core infrastructure to communicate with the hypervisor
(called virtqueues).
.Sh SEE ALSO
.Xr pci 4 ,
.Xr viomb 4 ,
.Xr ld 4 ,
.Xr vioif 4
.Pp
.Rs
.%A Rusty Russell, IBM Corporation
.%T Virtio PCI Card Specification
.%O http://ozlabs.org/~rusty/virtio-spec/
.Re
.Sh HISTORY
The
.Nm
device driver appeared in
.Nx 6.0 .
.Sh BUGS
Quite a few, possibly.