VMware has a command for hte command line to create a raw disk from a partion. I presume it is derived from what they do for BootCamp. Although Parallels supports BootCmap, it is limit to a specific configuration on a partition on the same disk as macOS at installation time. It does not have a direct way to make a raw disk from an arbitary partiion. This would be very useful. It has bene sggested to do this manually from dumping partiion info using various utilities, bnut that is not user friendly.