Re: [libvirt-users] question about how to set rng device on vm

On 10/25/2017 03:41 PM, Yalan Zhang wrote: > Hi Amos, > > I'm a libvirt QE, and I can not understand the setting on libvirt.org for > rng device. > Could you please help to explain a little? > (The xml in https://libvirt.org/formatdomain.html#elementsRng) > <devices> > <rng model='virtio'> > <rate period="2000" bytes="1234"/> > <backend model='random'>/dev/random</backend> > <!-- OR --> > <backend model='egd' type='udp'> > *<source mode='bind' service='1234'/>* > * <source mode='connect' host='1.2.3.4' service='1234'/>* > </backend> > </rng> > </devices> > > How did it work with source mode='bind' and source mode='connect' together? It doesn't. That's just an example that you can have two types of backend. Either the backend connects somewhere (mode='connect'), or expect somebody to connect (mode='bind'). Just try to define domain with that RNG, dump the XML back and see what got applied.