NAME
virtio —
VirtIO support driver
SYNOPSIS
virtio* at fdt?
virtio* at pci? flags 0x00
DESCRIPTION
The virtio driver provides support service
for paravirtualized devices using the VirtIO protocol. Such devices are
provided by bhyve, KVM, QEMU, VirtualBox, and
vmm(4).
Currently there are drivers for the following
virtio devices:
The virtio driver conforms to the virtio
0.9.5 specification. The virtio 1.0 standard is only supported for PCI
devices.
By default 0.9 is preferred over 1.0. This can be changed by setting the bit 0x4 in the flags. Setting the bit 0x8 in the flags disables 1.0 support completely.
SEE ALSO
HISTORY
The virtio driver first appeared in
OpenBSD 5.3.
AUTHORS
The virtio driver was ported to
OpenBSD and improved by Stefan
Fritsch
<sf@sfritsch.de>. It is
based on the NetBSD driver by
Minoura Makoto.
BUGS
virtio big-endian architectures are not
yet supported.