[ovirt-devel] [Hackathon] oVirt session non-notes

I've used the occasion of http://wiki.xen.org/wiki/Hackathon/May2014 to learn how Xen is managed, and to start scoping how it can be done within oVirt. I've laid out my impressions on http://www.ovirt.org/Xen; some of it may false. For example, up until few minutes ago, it stated that Xen is missing spice support. Feel free to fix it, it's a wiki. The bottom line is that, with a bit of help, and with limited feature set, oVirt can manage Xen-based hypervisors. I've posted a couple of Vdsm tweaks to support that http://gerrit.ovirt.org/#/q/status:open+project:vdsm+branch:master+topic:... The nicest patch there is a brute script that munches an oVirt-generated libvirt domxml and strips it from anything that it finds offensive to libvirt's xl driver. http://gerrit.ovirt.org/#/c/28353/1/vdsm_hooks/xen/before_vm_start.py The most painful of the things dropped is qcow2 images - I did not find a way to specify them for Xen domains (admittedly, I did not search too deep). Another hurdle was my failure to boot the guest from its cdrom. To have something running in the guest, I copied http://download.fedoraproject.org/pub/fedora/linux/updates/20/Images/x86_... onto the VM disk volume. Plenty of other caveats are listed in http://www.ovirt.org/Xen#What.27s_not_Done. But hey, it's working!(ish) I'd like to thank the all nice and helpful people at the Xen hackathon (too many to mention by name!), who invited me there and helped me debug numerous failures and misconfigurations. Regards, Dan.