Freenas bhyve research

See what happens when startin or stoppoing VMs from FreeNAS Web GUI:

    root@freenas:/usr/local # tail -f /var/log/middlewared.log
    [2019/04/15 20:30:12] (DEBUG) VMService.run():266 - Starting 
    bhyve: bhyve -A -H -w -c 1 -m 1024 -s 0:0,hostbridge -s 31,
    lpc -l com1,/dev/nmdm18A -l bootrom,
    /usr/local/share/uefi-firmware/BHYVE_UEFI.fd -s 3,e1000,
    tap2,mac=00:a0:98:3f:6a:c6 -s 4:0,ahci,
    hd:/dev/zvol/nas4/VMs/CentOS7_CentOS7_clone0 18_CentOS7_clone0