Daniel P. Berrange wrote: > On Fri, Jun 22, 2012 at 12:17:11AM +0800, Huang Zhiteng wrote: > >> Of course it is possible. What kind of issue did you run into? >> >> On Thu, Jun 21, 2012 at 5:52 PM, Wang Li <[email protected]> wrote: >> >>> hi,all >>> >>> I need to run virtual machines on Xen Hypervisor in HVM mode, >>> is it possible when using libvirt? >>> > > Actually, this is not currently possible. For reasons I don't > know, the libvirt driver currently hardcodes use of paravirtualized > guests when connected to Xen hosts. It does not allow use of HVM > guests. There's no particularly good technical reason why it can't > be made to work.
Right. I've been working on this in my few spare cycles and hope to post some patches soon. > There'd need to be a way to tag instance types > with HVM vs paravirt, in addition to their architecture. I was hoping to just use the vm_mode image property that the XenServer folks use. See option 2 in this mail https://lists.launchpad.net/openstack/msg11507.html > The > libvirt driver would have to expose whether each host supports > paravirt or HVM or both. The schedular would then have to take > this into account when placing guests. > I posted an RFC patch here that filters hosts based on the vm_mode image property and the additional_compute_capabilities flag. I haven't received any comments, so should probably just push this to gerrit. Regards, Jim _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
