Hi, Thx for your hint. I've tried this instead : <channel type='unix'> <source mode='bind' path='/opt/omnivision_1.agent'/> <target type='virtio' name='omnivision_1.agent'/> <address type='virtio-serial' controller='0' bus='0' port='2'/> </channel> Then, when starting the Guest I get a pop up window showing this error message : Error starting domain : internal error : process exited while connecting to monitor Quemu-kvm -chardev socket id=channel1,path=/opt/omnivision_1_agent,server,nowait Failed to bind socket : Permission denied Did I miss something ? Regards, J.P. -----Message d'origine----- De : Michal Privoznik [mailto:mprivozn@redhat.com] Envoyé : vendredi 28 août 2015 06:28 À : Jean-Pierre Ribeauville; libvirt-users@redhat.com<mailto:libvirt-users@redhat.com> Objet : Re: [libvirt-users] Using unix-type channel .... On 27.08.2015 15:48, Jean-Pierre Ribeauville wrote:
Hi,
I'm trying to use unix-type channel to send/receive datas between host and guest .
Here are the steps I follow :
1) Adding these lines to expose a channel unix type to my guest
<channel type='unix'>
<source mode='bind' path='/var/lib/libvirt/qemu/omnivision_1.agent'/>
<target type='virtio' name='org.qemu.guest_agent.0'/>
<alias name='channel0'/>
<address type='virtio-serial' controller='0' bus='0' port='2'/>
</channel>
This won't fly. A channel with that name is special. It's guest agent socket that libvirt automatically connects to once domain is starting up. You need to provide a different name and everything should just work. Michal