From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Fitzhardinge Subject: Re: [PATCH] cpuid configuration for PV guest Date: Sat, 12 Jul 2008 19:49:02 -0700 Message-ID: <48796D1E.7050908@goop.org> References: <484678D6.3060003@eu.citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <484678D6.3060003@eu.citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Jean Guyader Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org Jean Guyader wrote: > Hi, > > This patch add the pv guest support for the cpuid configuration and > checking. That feature only works for cpuid request which are coming > from the guest's kernel, a process could still call the cpuid directly. > > A new policy for pv guest has been created in libxc. dom0 cpuid > emulation is left hardcoded in Xen. So at the moment my pv guests are getting all zero back from cpuid. I haven't updated their config files at all. Is that the expected behaviour? It seems a bit unfriendly; I would have expected it to default to the old behaviour with no config in place. Hm, or maybe something else is going wrong? Thanks, J