On Thu, Dec 15, 2011 at 03:54:15PM +0100, Jiri Denemark wrote:
Hi,
Recently I realized that all modern CPU models defined in /etc/qemu/target-x86_64.conf are useless when qemu is used through libvirt. That's because we start qemu with -nodefconfig which results in qemu ignoring that file with CPU model definitions. We have a very good reason for using -nodefconfig because we need to control the ABI presented to a guest OS and we don't want any configuration file that can contain lots of things including device definitions to be read by qemu. However, we would really like the new CPU models to be understood by qemu even if used through libvirt. What would be the best way to solve this?
Ideally libvirt would just write out a config file with the CPU that was configured in libvirt and pass -readconfig /var/lib/libvirt/qemu/guestcpu.conf That way libvirt can configure CPU models without regard for what the particular QEMU version might have in its config. Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|