Copy stable/10@r272459 to releng/10.1 as part ofthe 10.1-RELEASE process.Approved by: re (implicit)Sponsored by: The FreeBSD Foundation
MFC 260847,264055,264867:- Add a very simple virtio_random(4) driver for FreeBSD guests to harvest entropy from hypervisors.- Add support to bhyve for the virtio RNG entropy-source device to provide entry to bhyve guests.
Add very simple virtio_random(4) driver to harvest entropy from hostReviewed by: markm (random bits only)