https://wiki.freebsd.org/bhyve FAQ:
Q: What hardware does it run on?
A: bhyve supports Intel processors with Extended Page Tables. Processor EPT compatibility can be determined at ark.intel.com but most Atom C2000, Core i3, i5, i7 and related Xeon processors are supported. Presence of the "POPCNT" (POPulation Count) processor feature in dmesg(8) indicates EPT support. AMD RVI (Rapid Virtualization Indexing, formerly Nested Page Tables) was merged into FreeBSD CURRENT on October 21st, 2014 with SVN release tag r273375 "Barcelona" class and newer AMD processors include the required RVI extension and as with Intel processors, presence of the "POPCNT" (POPulation Count) processor feature in dmesg(8) indicates RVI support.
Szóval nem a POPCNT a szükséges, hanem a szerintük ezzel jól jelzett EPT / RVI processzor-jellemző.