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List:       xen-devel
Subject:    [Xen-devel] Re: c/s 19576 vs. AMD systems
From:       Keir Fraser <keir.fraser () eu ! citrix ! com>
Date:       2009-04-29 10:49:54
Message-ID: C61DEF62.9B70%keir.fraser () eu ! citrix ! com
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On 29/04/2009 11:27, "Jan Beulich" <jbeulich@novell.com> wrote:

>> What do you suggest? Make the clip Intel-specific? We've only seen problems
>> with (a very few) Intel boxes, so handling AMD at all may be quite
>> unnecessary.
> 
> No - if BIOSes are broken, they can as well be an AMD systems. I'd rather
> take TOM2 and the mentioned SYS_CFG bit into account in that code (not
> the least because modern Linux also does so in its MTRR handling code).

I will consider fixes for theoretical BIOS problems in 3.5. I'm only putting
the test at all in 3.3/3.4 because we have actually seen problems on Intel
systems, and I will restrict the test to that scope.

 -- Keir



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