cat /proc/cpuinfo and see if there is
vmx (Intel) or
svm for AMD based.
dmidecode it should provide a lot of information about your BIOS settings.
From thier website:
dmidecode is packaged for several Linux and BSD distributions (Debian, Gentoo, openSUSE and FreeBSD among others), either as a single package or included in a more generic tool set.
It should be on the repos of your distro, or installed on your system already.
UPDATE: I have found your question here and here, but I'm unable to verify whether the above commands are give you the BIOS configuration status, or just your CPU abilities.