computer.vmtypeid is not being used for anything and is not exposed via the web gui. So, it should be removed. The initial intent was to know what type of hypervisor was being used on a VM. It would be more useful to have this information assigned to each vmprofile instead. So, a field needs to be added to the vmprofile for this information. It would also require computer.provisioning to be either NULL or something generic like "virtual" for VMs. Then, the provisioning engine would be determined from the vmprofile where the VM happens to be assigned at the time.