VIORND(4)

VIORND(4) | Kernel Interfaces Manual | VIORND(4)

# NAME

viornd — VirtIO entropy source

# SYNOPSIS

viornd* at virtio?

# DESCRIPTION

When the system has entropy demand, the viornd driver, used with a compatible hypervisor such as QEMU, KVM, or Google Compute Engine, requests entropy using the VirtIO random number interface and feeds it into the system entropy pool.

# SEE ALSO

rnd(4), virtio(4)

# HISTORY

The viornd driver appeared in OpenBSD 5.5.

# AUTHORS

The viornd driver was written by Stephan Fritsch <sf@fritsch.de> and reworked to request entropy upon demand by Thor Lancelot Simon <tls@NetBSD.org>.

# CAVEATS

VirtIO appears to support at least 8 pending entropy requests, but viornd currently supports only one pending request at a time.

October 26, 2014 | NetBSD 7.0