I think the parent's point is that running a unikernel on paravirtualized hardware is actually neither: the entire VM runs in userspace as seen from the host, b

I think the parent's point is that running a unikernel on paravirtualized hardware is actually neither: the entire VM runs in userspace as seen from the host, but you still have the data copy from the host's physical network interface to the paravirtual interface on the VM.