A system may be configured to allow for the specification of parameters for a desired virtual machine. The parameters may be provided in an arbitrary fashion (e.g., as opposed to the selection of pre-configured parameters). The system may cause the virtual machine to be provisioned, as a zone, on a physical machine and/or on a logical domain (“LDOM”) of a cloud system. The arbitrary fashion of the specification of the virtual machine may allow for enhanced flexibility based on users' needs, and the use of zone-based virtualization may enhance the efficiency of cloud-based virtual machine provisioning.