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Bug 1055855 - [RFE][nova]: Libvirt - Enable support for RNG device
Summary: [RFE][nova]: Libvirt - Enable support for RNG device
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-nova
Version: unspecified
Hardware: Unspecified
OS: Unspecified
Target Milestone: Upstream M3
: 5.0 (RHEL 7)
Assignee: Daniel Berrange
QA Contact: Toure Dunnon
Whiteboard: upstream_milestone_icehouse-3 upstrea...
Depends On:
Blocks: 1068651 1082396
TreeView+ depends on / blocked
Reported: 2014-01-21 05:02 UTC by RHOS Integration
Modified: 2016-04-27 00:25 UTC (History)
9 users (show)

Fixed In Version:
Doc Type: Enhancement
Doc Text:
The Libvirt Compute driver now supports adding a Virtio RNG device to compute instances to provide increased entropy. Virtio RNG is a paravirtual, random-number generation device, which allows the compute node to provide entropy to compute instances in order to fill their entropy pool. The default entropy device used is /dev/random, however the use of a physical hardware RNG device attached to the host is also possible. The use of the Virtio RNG device is enabled using the hw_rng property in the metadata of the image used to build the instance.
Clone Of:
: 1068651 1082396 (view as bug list)
Last Closed: 2014-07-08 15:27:57 UTC
Target Upstream Version:

Attachments (Terms of Use)

System ID Priority Status Summary Last Updated
Red Hat Product Errata RHEA-2014:0853 normal SHIPPED_LIVE Red Hat Enterprise Linux OpenStack Platform Enhancement - Compute 2014-07-08 19:22:38 UTC

Description RHOS Integration 2014-01-21 05:02:16 UTC
Cloned from launchpad blueprint


Virtio RNG is a paravirtual random number generator device, allows the host to inject entropy into guests, in order to fill its entropy pool. /dev/random will be used as a default entropy source on the host, however, a physical HW RNG device could be configured as well.
Other hypervisors will be able to set their own supported models of RNG devices using the hw_rng property in image metadata. 

Specification URL (additional information):

Comment 1 Keith Basil 2014-02-06 19:43:10 UTC
Added rhos‑4.0.z support.  Several customers in the security space need these feature to support stronger RNG in their guests/applications.

Comment 4 Scott Lewis 2014-02-21 15:34:22 UTC
(In reply to Keith Basil from comment #1)
> Added rhos‑4.0.z support.  Several customers in the security space need
> these feature to support stronger RNG in their guests/applications.

cloned to

Comment 14 errata-xmlrpc 2014-07-08 15:27:57 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

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