The following options that aren't in the kvm brand should work:
com1,com2- Can be set to tty-like devices or
socket,/some/path. - If both are unset,
com1defaults to/dev/zconsoleandcom2defaults to/tmp/vm.ttyb.
- Can be set to tty-like devices or
bootrom- Should be set to
/usr/share/bhyve/BHYVE_UEFI.fdor/usr/share/bhyve/BHYVE_UEFI_CSM.fd
- Should be set to
- Defaults to
/usr/share/bhyve/BHYVE_UEFI_CSM.fd