[libvirt] How to shut down every VM when libvirt is stopped

Hi, With libvirt 0.4.6 for example, the behaviour when we stopped libvirt was to shut down every VM. That was a problem in many cases (upgrades, etc.) but that behaviour was very useful with high avalability systems like Heartbeat. With an Hearbeat + DRBD system, if the libvirt service is stopped by Heartbeat, every VM should be stopped too. Otherwise we will experience problems and disk corruption. Is there any way to configure libvirt to have that old behaviour ? Or do I have to shut down/kill every VM in the stop target in the init script ? Thank you, -- Laurent Léonard