viornd(4) - NetBSD Manual Pages

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VIORND(4)               NetBSD 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 com-
     patible 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.

NetBSD 9.1                     October 26, 2014                     NetBSD 9.1