virtio(4) - NetBSD Manual Pages

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VIRTIO(4)               NetBSD Kernel Interfaces 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 9.4_STABLE                June 7, 2018                NetBSD 9.4_STABLE