is there a vCPU hard limit for bhyve guests?

[tech-lists]

Hi,

On a host with hw.ncpu=48 I tried to start a bhyve guest with -c 24 and
it failed to start. So I tried -c 16 and it starts and runs as
expected. Any more than -c 16 fails to run.

Is a maximum of 16 vCPU hardwired somewhere, and if so, why? Is there a
way to overcome the limit?

thanks,
-- 
J.