DutchDaemon said:There's /usr/src/sys/i386/conf/XEN (Kernel configuration for i386 XEN DomU) and /usr/src/sys/amd64/conf/XENHVM (Xen HVM kernel configuration file for FreeBSD/amd64). Some stuff shows up in [cmd=]apropos xen[/cmd], and on http://wiki.freebsd.org/FreeBSD/Xen.