Comment 3 for bug 1599214

Ok, relevant part of command line is

-add-fd set=2,fd=33
-chardev socket,id=charconsole0,host=9.152.151.129,port=10000,server,nowait,logfile=/dev/fdset/2,logappend=on
-device virtconsole,chardev=charconsole0,id=console0
-chardev pty,id=charconsole1
-device sclpconsole,chardev=charconsole1,id=console1

Which shows a TCP based serial console with log file