Xen devel - Aug 2005 - RE: [PATCH] supporting non-NX/XD capable processors onx86_64 xenlinux

I have always needed the rm_nx_xd patch to boot Xen / Dom0 on the ES7000
x86_64 but the system boots without any issues on plain vanilla Linux
2.6.
> -----Original Message-----
> From: xen-devel-bounces@lists.xensource.com [mailto:xen-devel-
> bounces@lists.xensource.com] On Behalf Of Keir Fraser
> Sent: Thursday, August 18, 2005 4:49 AM
> To: Nakajima, Jun
> Cc: Jerone Young; xen-devel@lists.xensource.com
> Subject: Re: [Xen-devel] [PATCH] supporting non-NX/XD capable
processors
> onx86_64 xenlinux
> 
> 
> On 18 Aug 2005, at 05:29, Nakajima, Jun wrote:
> 
> > I don''t have particular preference, but the latter
one''s change is
> > smaller, and it can fix other places (that are using the attrributes
> > derived from __PAGE_KERNEL). But the former one is cleaner to me. If
> > people agree, I can make such a patch.
> 
> How does native x86/64 Linux avoid this problem? It doesn''t mask
> __PAGE_KERNEL with __supported_pte_mask, so I''m reluctant to take
this
> patch. Seems to me there is some other underlying difference between
us
> and native that is not best solved by diverging even further.
> 
> Unless native doesn;t boot on these failing boxes either?
> 
>   -- Keir
> 
> 
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On 18 Aug 2005, at 12:13, Puthiyaparambil, Aravindh wrote:
> I have always needed the rm_nx_xd patch to boot Xen / Dom0 on the 
> ES7000
> x86_64 but the system boots without any issues on plain vanilla Linux
> 2.6.
I can reproduce problems if I deliberately disable nx/xd support in 
Xen. I''ll do some investigating...

  -- Keir


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