I have Fedora 18 with ovirt running. I have vdsm-hook-nestedvt.noarch installed on all the nodes. The nodes are all identical with Intel i5-2400 CPUs (SandyBridge). When I try to boot a nested virtual machine (L2) instead of a ovirt virtual machine (L1), the kernel starts to load, and then that nested virtual machines (L2) pauses. On the host running Fedora 18 dmesg shows this message: nested_vmx_run: VMCS MSR_{LOAD,STORE} unsupported Reading this bug https://bugzilla.redhat.com/show_bug.cgi?id=892240 It looks like if the Fedora 18 ovirt nodes started the the L1 using the "core2duo" CPU flag instead of host pass through it might work? How do I do that, or are there other solutions? TIA, Dax Kelson _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users

On Thu, Jun 6, 2013 at 1:27 PM, Pavel Zhukov <pavel(a)zhukoff.net&gt; wrote: > Hi Dax, > https://bugzilla.redhat.com/922075 > > -- > Pavel > Thanks for the pointer? Any workarounds? How can I fiddle on what -cpu flags are passed? Does it require creating a vdsm hook? _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users

On Fri, Jun 7, 2013 at 6:55 AM, Itamar Heim <iheim(a)redhat.com <mailto:iheim@redhat.com>> wrote: you can change the flags at engine config (restart engine), but a hook is less hacky than changing this for all VMs in all clusters via the engine. I'm OK with hacky. I poked around the documentation and didn't see anything mentioning how to do this. Do you have a pointer or more info? Thanks Dax