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[Xen-devel] Re: Xen's use of PAT and PV guests

To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxxxx>
Subject: [Xen-devel] Re: Xen's use of PAT and PV guests
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Tue, 30 Mar 2010 18:59:02 +0100
Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
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On 30/03/2010 18:39, "Jeremy Fitzhardinge" <jeremy@xxxxxxxx> wrote:

> Does Xen guarantee that PAT is always available to vcpus as part of its
> ABI  (ie, do we support any pre-PAT cpus?).

As it happens I think we do only support CPUs that have PAT. But you can
always check CPUID, just like running natively.

 -- Keir

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