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Date:      Fri, 30 Mar 2007 10:03:18 +0200
From:      Alexander Leidinger <Alexander@Leidinger.net>
To:        Dag-Erling =?utf-8?b?U23DuHJncmF2?= <des@des.no>
Cc:        arch@freebsd.org, freebsd-security@freebsd.org, amd64@freebsd.org, Igor <runixd@gmail.com>
Subject:   Re: nx-bit and TPM
Message-ID:  <20070330100318.wbqww1rilcksskok@webmail.leidinger.net>
In-Reply-To: <86648johpj.fsf@dwp.des.no>
References:  <e318b01b0703291334q1e05eda4y36cdd8a86cb3c597@mail.gmail.com> <86648johpj.fsf@dwp.des.no>

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Quoting Dag-Erling Sm=C3=B8rgrav <des@des.no> (from Thu, 29 Mar 2007 =20
23:36:24 +0200):

> 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 Modul=
e).
>
> 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.

This should not stop us in using it on amd64 if available. I think one =20
of the problem was/is the lack of time/man-power. So if someone comes =20
up with a good (enough) implementation which works on our supported =20
hardware, I don't think it will be rejected.

Regarding TPM: there are good an bad uses for it. As our policy is to =20
provide possibilities and not to force policies on our users, I don't =20
see a reason why we will not incorporate good code regarding this. I =20
also think that we don't have it, as nobody needed it or wasn't =20
allowed to contribute code.

But all this is better suited for arch@ I think (or maybe amd64@ in =20
case of NX).

Bye,
Alexander.

--=20
"If a camel flies, no one laughs if it doesn't get very far."
=09=09-- Paul White

http://www.Leidinger.net    Alexander @ Leidinger.net: PGP ID =3D B0063FE7
http://www.FreeBSD.org       netchild @ FreeBSD.org  : PGP ID =3D 72077137



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