Solusvm es solo un panel de control. No virtualiza nada.
No sé si has leído su web
http://solusvm.com/
En la primera página dice:
Solus Virtual Manager (SolusVM) is a powerful GUI based VPS management system with full OpenVZ, Linux KVM, Xen Paravirtualization and Xen HVM support. SolusVM allows you and your clients to manage a VPS cluster with security & ease.
Creo que está claro.