VMs without unrestricted mode support

[James Crist]

Hello, I originally asked this on the FreeNAS forums and was directed here. I'm not sure if this is a FreeNAS issue, a bhyve issue, or a me doing something wrong issue.

My processor (W3550) supports virtualization but does not have unrestricted guest capability. According to the documentation (https://www.freebsd.org/doc/handbook/virtualization-host-bhyve.html) it sounds like I should still be able to run VMs as long as they only have one vCPU but I still get the error. According to this post (https://redmine.ixsystems.com/issues/31338) it sounds like this is only true for FreeBSD VMs but the source provided doesn't talk about number of cores.

Can someone confirm under what conditions a VM can be run without unrestricted guest?

Thank you,
James