From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keir Fraser Subject: Re: Xen's use of PAT and PV guests Date: Tue, 30 Mar 2010 18:59:02 +0100 Message-ID: References: <4BB2376B.7020400@goop.org> Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4BB2376B.7020400@goop.org> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Jeremy Fitzhardinge , Jan Beulich Cc: Xen-devel , Konrad Rzeszutek Wilk List-Id: xen-devel@lists.xenproject.org On 30/03/2010 18:39, "Jeremy Fitzhardinge" 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