A computer-implemented method, according to one embodiment, includes receiving a request for a hypervisor to run a virtual machine; determining, using a processor, whether the virtual machine is authorized to run using a data structure having metadata about properties of the virtual machine; determining, using the processor, whether the hypervisor is authorized to run the virtual machine using a digital signature of the data structure; and running the virtual machine on a computer system using the hypervisor in response to determining that the virtual machine is authorized to be run and that the hypervisor is authorized to run the virtual machine. Other systems, methods, and computer program products are described in additional embodiments.