Re: nx-bit and TPM
- From: metadev <metadev@xxxxxxxxx>
- Date: Tue, 3 Apr 2007 17:43:08 +0300
On 3/30/07, Alexander Leidinger <Alexander@xxxxxxxxxxxxx> wrote:
Quoting Dag-Erling Smørgrav <des@xxxxxx> (from Thu, 29 Mar 2007
23:36:24 +0200):
> Igor <runixd@xxxxxxxxx> 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.
This should not stop us in using it on amd64 if available. I think one
of the problem was/is the lack of time/man-power. So if someone comes
up with a good (enough) implementation which works on our supported
hardware, I don't think it will be rejected.
Please see this post for more info on the implications of using a
non-executable stack
http://lists.freebsd.org/pipermail/freebsd-security/2005-November/003318.html
Bogdan
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