From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: What is up with XSAVE? 2.6.37, 2.6.39 crashes with Xen 4.2 Date: Mon, 25 Apr 2011 10:01:22 -0400 Message-ID: <20110425140122.GA14680@dumpdata.com> References: <20110422195131.GA3417@dumpdata.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Keir Fraser Cc: xen-devel@lists.xensource.com, Tim Deegan List-Id: xen-devel@lists.xenproject.org On Mon, Apr 25, 2011 at 01:14:31PM +0100, Keir Fraser wrote: > On 22/04/2011 20:51, "Konrad Rzeszutek Wilk" wrote: > > > If I use 'xsave=0' on the latest Xen it works fine with PV guests. > > But if I boot the machine without that workaroudn the PV guests fail. > > Can you try the attached patch? Should fill in XSAVE-related CPUID leaves > for PV guests. Works great. Thank you.