From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753754Ab2IHK2Z (ORCPT ); Sat, 8 Sep 2012 06:28:25 -0400 Received: from mail-we0-f174.google.com ([74.125.82.174]:33459 "EHLO mail-we0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753250Ab2IHK2X (ORCPT ); Sat, 8 Sep 2012 06:28:23 -0400 Message-ID: <504B1DC3.1000604@redhat.com> Date: Sat, 08 Sep 2012 12:28:19 +0200 From: Paolo Bonzini User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:14.0) Gecko/20120717 Thunderbird/14.0 MIME-Version: 1.0 To: Stefan Bader CC: Jan Beulich , Matt Wilson , "Justin M. Forbes" , xen-devel@lists.xen.org, Konrad Rzeszutek Wilk , Linux Kernel Mailing List Subject: Re: [Xen-devel] [PATCH/RFC] Fix xsave bug on older Xen hypervisors References: <1347018043-21252-1-git-send-email-stefan.bader@canonical.com> <504A05B00200007800099C7B@nat28.tlf.novell.com> <5049F4E9.9050306@canonical.com> <504A1A950200007800099D4C@nat28.tlf.novell.com> <20120907142251.GA20096@linuxtx.org> <504A32800200007800099E40@nat28.tlf.novell.com> <504A172B.5020005@canonical.com> <504A347B0200007800099E92@nat28.tlf.novell.com> <504A1D43.2050909@canonical.com> In-Reply-To: <504A1D43.2050909@canonical.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Il 07/09/2012 18:13, Stefan Bader ha scritto: > This would make it save again _if_ the HV failing to handle the writes to CR4 > (which iirc the kernel code still does when the cpuid bit is set) does have at > least the patch to mask off the cpuid bits (the one Ian mentioned) Given how old it is, that's very unlikely. You can download CentOS 5.0 from http://mirror.stanford.edu/yum/pub/centos/5/isos/x86_64/ or get the source RPM for the RHEL5.0 kernel (including the Xen hypervisor) at ftp://ftp.redhat.com/redhat/linux/enterprise/5Client/en/os/SRPMS/kernel-2.6.18-8.el5.src.rpm Paolo