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RE: [Xen-users] Xen & Transmeta CPUs

To: "Carl Holtje ;021;vcsg6;" <cwh0803@xxxxxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] Xen & Transmeta CPUs
From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date: Wed, 18 May 2005 19:38:34 +0100
Cc: ian.pratt@xxxxxxxxxxxx
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Thread-topic: [Xen-users] Xen & Transmeta CPUs
> > Xen is quite conservative about what it is prepared to run on. You 
> > might want to add some instrumentation to xen/arch/x86/setup.c
> 
> Hm.. I'll dig into this some..
> 
> > Also, does Transmeta support PSE (4MB pages), PGE (global bit), TSC 
> > (time stamp counter)?
> 
> It does support the 4MB pages and the time stamp counter, but 
> not the global bit -- is this a deal breaker for Xen?

No, but you'll probably need to hack PGE out of the bits set in Xen page
table entries.

I seriously doubt it will effect performance.

Ian
 
> For those who may be intersted:
> 
> flags: fpu vme de pse tsc msr cx8 sep cmov mmx pni longrun lrt
> 
> As an aside -- is there someplace where each of these 
> capability abbreviations is explained?
> 
> Thanks!
> 
> Carl
> 
> - --
> 
> "There are 10 types of people in the world: Those who 
> understand binary and those that don't."
> 
> _______________________________________________
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> 

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