[Differential] D14473: userboot: add callbacks to set unrestricted guest mode

[rgrimes]

rgrimes added a reviewer: bhyve.

REPOSITORY
  rS FreeBSD src repository

REVISION DETAIL
  https://reviews.freebsd.org/D14473

EMAIL PREFERENCES
  https://reviews.freebsd.org/settings/panel/emailpreferences/

To: fabian.freyer_physik.tu-berlin.de, imp, #bhyve
Cc: imp, freebsd-virtualization-list, #contributor_reviews_base