freebsd security - Mar 2007 - nx-bit and TPM

Hello,
I'm was looking through handbook and wikipedia and it appears FreeBSD
doesn't support hardware (nor software) nx bit.
There also doesn't seem to be any support for TPM (Trusted Platform Module).
I was wondering if it is due to a general lack of interest and/or
personal preference (gcc?) or are there other issues. The reason I'm asking
is I'm currently doing a MSc degree in Information Security and was
looking into optionally implementing both of the above for FreeBSD as part
of my thesis. I would appreciate any input regarding usefulness of such
thing.
Regards,
Igor.

Igor <runixd@gmail.com> writes:
> I'm was looking through handbook and wikipedia and it appears FreeBSD
> doesn't support hardware (nor software) nx bit.
> There also doesn't seem to be any support for TPM (Trusted Platform
Module).
I believe NX support was never implemented because Intel's version of
AMD64 didn't support it.  As for TPM, I don't see the point.

DES
-- 
Dag-Erling Sm?rgrav - des@des.no