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Bug 989636

Summary:	[RFE] Add ability to pull system entropy from host
Product:	Red Hat Enterprise Linux 7	Reporter:	Hai Huang <hhuang>
Component:	qemu-kvm	Assignee:	Amos Kong <akong>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	medium	Docs Contact:
Priority:	high
Version:	7.0	CC:	acathrow, ailan, akong, amit.shah, areis, bcao, bsarathy, dallan, dayleparker, juzhang, kseifried, laine, lnovich, mazhang, mhomolov, michen, mkenneth, pkrempa, pspacek, qzhang, rhod, sgrubb, shu, sradvan, tburke, trichard, virt-maint
Target Milestone:	rc	Keywords:	FutureFeature
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	qemu 1.4	Doc Type:	Release Note
Doc Text:	Pulling System Entropy from Host A new device, virtio-rng, can be configured for guests, which will make entropy available to guests from the host. By default, this information is sourced from the host's /dev/random file, but hardware random number generators (RNG) available on hosts can be used as the source as well.	Story Points:	---
Clone Of:	786407	Environment:
Last Closed:	2014-06-13 12:21:49 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	786407, 1001770, 1001773
Bug Blocks:	975927

Comment 2 Amos Kong 2013-07-30 06:40:14 UTC

We already have virtio-rng support in latest qemu-kvm-rhel7.
I assume that what I need to do more is confirming it works in rhel7.

1) use assigned backend
# qemu-kvm-rhel7 -object rng-random,filename=/dev/urandom,id=rng0 -device virtio-rng-pci,rng=rng0 -vnc :0 -snapshot /images/RHEL-Server-7.0-64-virtio.qcow2 --enable-kvm

2) use default backend
# qemu-kvm-rhel7 -device virtio-rng-pci -vnc :0 -snapshot /images/RHEL-Server-7.0-64-virtio.qcow2 --enable-kvm

Comment 6 Ludek Smid 2014-06-13 12:21:49 UTC

This request was resolved in Red Hat Enterprise Linux 7.0.

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