[Xen-devel] Re: Xen with grsec?

[Milan Holzäpfel <lists@xxxxxxxx>]

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On Tue, 23 Nov 2004 11:42:46 +0100
Jacob Gorm Hansen <jacobg@xxxxxxx> wrote:

> Pasi Kärkkäinen wrote:
> > Has anyone tried running grsec with xen (2.4) ?
> > 
> > Are there any expected problems, or should it be ok "out-of-the-box"? 
> > I have not yet tried patching xen-patched kernel with grsec.. Just wanted to
> > ask if somebody has already tried this.
> 
> I am fairly sure you will run into infinite page-fault loops if you are 
> trying to use the PaX 'software NX' implementation, [...]

What about hardware implementations? IIRC, the Athlon64 processors
(amongst others) implement such feature in hardware?  While I know that
there's usable version of Xen for AMD64 so far, can this feature also be
used in 32-Bit-mode?  (On the other hand, I'm not aware whether PaX will
use this feature or not...) 
...just jumping in because I'm interested in this too...

Regards,
Milan

- -- 

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