@Niklas: Thx a lot for the clarification. Since I'm very new to mainframes in general and Linux support on the s390x platform in specifc, I'd like to ask: Is it possible reconfigure our community VMs via z/VM configuration settings so that additional CPU facilities are added (and thus PCI devices supported) simply after a VM restart, i.e. *without* our VMs having to be deleted and then recreated (setup completely from scratch again)?