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Diffstat (limited to 'static/openbsd/man4/virtio.4')
| -rw-r--r-- | static/openbsd/man4/virtio.4 | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/static/openbsd/man4/virtio.4 b/static/openbsd/man4/virtio.4 new file mode 100644 index 00000000..a2095c78 --- /dev/null +++ b/static/openbsd/man4/virtio.4 @@ -0,0 +1,86 @@ +.\" $OpenBSD: virtio.4,v 1.18 2025/01/29 14:03:18 sf Exp $ +.\" +.\" Copyright (c) 2012 Stefan Fritsch <sf@sfritsch.de> +.\" +.\" Permission to use, copy, modify, and distribute this software for any +.\" purpose with or without fee is hereby granted, provided that the above +.\" copyright notice and this permission notice appear in all copies. +.\" +.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +.\" +.Dd $Mdocdate: January 29 2025 $ +.Dt VIRTIO 4 +.Os +.Sh NAME +.Nm virtio +.Nd VirtIO support driver +.Sh SYNOPSIS +.Cd "virtio* at fdt?" +.Cd "virtio* at pci? flags 0x00" +.Sh DESCRIPTION +The +.Nm +driver provides support service for paravirtualized devices using the VirtIO +protocol. +Such devices are provided by bhyve, KVM, QEMU, VirtualBox, and +.Xr vmm 4 . +.Pp +Currently there are drivers for the following +.Nm +devices: +.Pp +.Bl -tag -width "vioscsi(4)XXX" -offset indent -compact +.It Xr vio 4 +VirtIO network device +.It Xr vioblk 4 +VirtIO disk +.It Xr viocon 4 +VirtIO console device +.It Xr viogpu 4 +VirtIO GPU device +.It Xr viomb 4 +VirtIO memory ballooning driver +.It Xr viornd 4 +VirtIO random number device +.It Xr vioscsi 4 +VirtIO SCSI adapter +.It Xr vmmci 4 +.Xr vmm 4 +control interface +.El +.Pp +The +.Nm +driver conforms to the virtio 0.9.5 specification. +The virtio 1.0 standard is only supported for PCI devices. +.Pp +By default 1.x is preferred over 0.9. +This can be changed by setting the bit 0x8 in the flags. +.Sh SEE ALSO +.Xr intro 4 +.Sh HISTORY +The +.Nm +driver first appeared in +.Ox 5.3 . +.Sh AUTHORS +.An -nosplit +The +.Nm +driver was ported to +.Ox +and improved by +.An Stefan Fritsch Aq Mt sf@sfritsch.de . +It is based on the +.Nx +driver by +.An Minoura Makoto . +.Sh BUGS +.Nm +big-endian architectures are not yet supported. |
