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Diffstat (limited to 'share/man/man4/virtio.4')
| -rw-r--r-- | share/man/man4/virtio.4 | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/share/man/man4/virtio.4 b/share/man/man4/virtio.4 index 7787051..030f0aa 100644 --- a/share/man/man4/virtio.4 +++ b/share/man/man4/virtio.4 @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd July 4, 2011 +.Dd January 22, 2012 .Dt VIRTIO 4 .Os .Sh NAME @@ -48,24 +48,25 @@ virtio_pci_load="YES" .Sh DESCRIPTION VirtIO is a specification for para-virtualized I/O in a virtual machine (VM). Traditionally, the hypervisor emulated real devices such as an Ethernet -interface or disk controller to provide the VM with I/O. This emulation is -often inefficient. +interface or disk controller to provide the VM with I/O. +This emulation is often inefficient. .Pp VirtIO defines an interface for efficient I/O between the hypervisor and VM. -The -.Xr virtio 4 +The +.Xr virtio 4 module provides a shared memory transport called a virtqueue. The .Xr virtio_pci 4 device driver represents an emulated PCI device that the hypervisor makes -available to the VM. This device provides the probing, configuration, and -interrupt notifications need to interact with the hypervisor. +available to the VM. +This device provides the probing, configuration, and +interrupt notifications needed to interact with the hypervisor. .Fx supports the following VirtIO devices: .Bl -hang -offset indent -width xxxxxxxx .It Nm Ethernet An emulated Ethernet device is provided by the -.Xr if_vtnet 4 +.Xr vtnet 4 device driver. .It Nm Block An emulated disk controller is provided by the @@ -78,9 +79,9 @@ provided by the device driver. .El .Sh SEE ALSO -.Xr if_vtnet 4 , +.Xr virtio_balloon 4 , .Xr virtio_blk 4 , -.Xr virtio_balloon 4 +.Xr vtnet 4 .Sh HISTORY Support for VirtIO first appeared in .Fx 9.0 . |
