FreeBSD 11 XEN Dom0 hangs and reboot

[skarida at gmail.com]

Hello all,

I have tried to run FreeBSD 11 rev.296614 and /usr/ports/emulator/xen on
two different hardware configurations and the result was the same. XEN
kernel loads successfully but it hangs and restart on dom0 Init  with
*"Error* creating domain 0" and "ELF boundaries" error.

I tried on :
 *) Dell Vostro with CPU i7-2640M
 *) SuperMicro X10DRW-N with CPU E5-2667 v3

Both CPU are listed to support VT-d and VT-x. On both machines I have EPT
and DMAR available.
On both machines virtualization is enabled in BIOS.

How can I proceed to catch the error source hardware related, XEN related
or FreeBSD related ?

Cheers
Rumen Palov