UEFI booting & serial console

All,

I have a couple of Lenovo ThinkServer RD450 servers booting in pure
UEFI mode.  I'm using serial console redirection over IPMI with these
and a fresh install from r298793.

When it boots it picks up the right serial settings and I get the menu:

>> FreeBSD EFI boot block
   Loader path: /boot/loader.efi

   Initializing modules: ZFS UFS
   Probing 13 block devices.......+...*..+. done
    ZFS found the following pools: zroot
    UFS found 1 partition
    command args: -S115200 -h
Consoles: EFI console
Command line arguments: loader.efi -S115200 -h
Image base: 0x443aa000
EFI version: 2.40
EFI Firmware: American Megatrends (rev 5.11)

FreeBSD/amd64 EFI loader, Revision 1.1
(root_at_releng2.nyi.freebsd.org, Fri Apr 29 20:40:25 UTC 2016)
Loading /boot/defaults/loader.conf
\
<menu here>

However I can't seen to interact with it using either IPMI SoL or via
the IPKVM.  Is this normal?

Thanks!
-Dustin