On 06/10/2010 12:19 PM, Daniel P. Berrange wrote: > We already use the '-nodefaults' command line arg with QEMU to stop > it adding any default devices to guests. Unfortunately, QEMU will > load global config files from /etc/qemu that may also add default > devices. These aren't blocked by '-nodefaults', so we need to also > add the '-nodefconfig' arg to prevent that. > > Unfortunately these global config files are also used to define > custom CPU models. So in blocking global hardware device addition > we also block definitions of new CPU models. Libvirt doesn't know > about these custom CPU models though, so it would never make use > of them anyway. Thus blocking them via -nodefconfig isn't a show > stopping problem. We would need to expand libvirt's own CPU model > XML database to support these instead. > > * src/qemu/qemu_conf.c: Add '-nodefconfig' if available > * tests/qemuxml2argvdata/: Add '-nodefconfig' to all data files which > have '-nodefaults' present ACK. -- Eric Blake eblake@xxxxxxxxxx +1-801-349-2682 Libvirt virtualization library http://libvirt.org
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