openbsd 6.0 or 6.1 guest on freebsd-12 (current) host

Hello freebsd-virtualization_at_

[also cc'd to freebsd-current],

I'd like to run openbsd 6.0 or 6.1 guest under a 12-current bhyve
system. I'd like it to run two cpus, so to use the openbsd smp kernel. I
can see, from searching various mailing lists that there have been
issues in getting openbsd to boot. Have these issues been fixed?

Also, is there a howto for this? I found one here:
http://www.allanjude.com/bsd/virtualization-host-bhyve.html but there's
no date on the document, it's not on the official freebsd sites and so
have no idea if the information is still current.

I realise that HardenedBSD has fixed some issues with this, but I can't
easily change the host to that OS unfortunately.

thanks,
-- 
J.