A method for operating a processing system comprising in a hypervisor, negotiating with a host platform to determine compatibility between a virtual machine and the host platform, responsive to determining that the virtual machine is compatible with the host platform, receiving a control block from the virtual machine, tagging the control block with information that associates the control block with a control group, determining whether the hypervisor is a base hypervisor, and scheduling the control block for processing responsive to determining that the hypervisor is the base hypervisor.