From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755652AbXFVJa6 (ORCPT ); Fri, 22 Jun 2007 05:30:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751586AbXFVJav (ORCPT ); Fri, 22 Jun 2007 05:30:51 -0400 Received: from il.qumranet.com ([82.166.9.18]:56149 "EHLO il.qumranet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751406AbXFVJau (ORCPT ); Fri, 22 Jun 2007 05:30:50 -0400 Message-ID: <467B96C8.1050500@qumranet.com> Date: Fri, 22 Jun 2007 12:30:48 +0300 From: Avi Kivity User-Agent: Thunderbird 2.0.0.4 (X11/20070615) MIME-Version: 1.0 To: Joerg Roedel CC: kvm-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: Re: [PATCH] SVM: reliably detect if SVM was disabled by BIOS References: <20070621175122.GE25896@amd.com> In-Reply-To: <20070621175122.GE25896@amd.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (firebolt.argo.co.il [0.0.0.0]); Fri, 22 Jun 2007 12:30:48 +0300 (IDT) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Joerg Roedel wrote: > From: Joerg Roedel > > This patch adds an implementation to the svm is_disabled function to > detect reliably if the BIOS disabled the SVM feature in the CPU. This > fixes the issues with kernel panics when loading the kvm-amd module on > machines where SVM is available but disabled. > > Applied; thanks. Is this msr documented anywhere? I assume it is implemented on all processors with svm? -- Do not meddle in the internals of kernels, for they are subtle and quick to panic.