From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751477AbZIWMgm (ORCPT ); Wed, 23 Sep 2009 08:36:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751102AbZIWMgl (ORCPT ); Wed, 23 Sep 2009 08:36:41 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:54497 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751008AbZIWMgl (ORCPT ); Wed, 23 Sep 2009 08:36:41 -0400 Date: Wed, 23 Sep 2009 14:36:16 +0200 From: Ingo Molnar To: Jeremy Fitzhardinge Cc: Ingo Molnar , the arch/x86 maintainers , Stable Kernel , Linux Kernel Mailing List , Xen-devel Subject: Re: [GIT PULL] xen: Check NX state before setting up GDT mapping Message-ID: <20090923123616.GC19385@elte.hu> References: <4AB7EC1D.5010102@goop.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4AB7EC1D.5010102@goop.org> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-SpamScore: -0.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-0.5 required=5.9 tests=BAYES_20 autolearn=no SpamAssassin version=3.2.5 -0.5 BAYES_20 BODY: Bayesian spam probability is 5 to 20% [score: 0.1567] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Jeremy Fitzhardinge wrote: > diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c > index 0dd0c2c..5d701bf 100644 > --- a/arch/x86/xen/enlighten.c > +++ b/arch/x86/xen/enlighten.c > @@ -1083,6 +1083,11 @@ asmlinkage void __init xen_start_kernel(void) > > __supported_pte_mask |= _PAGE_IOMAP; > > +#ifdef CONFIG_X86_64 > + /* Work out if we support NX */ > + check_efer(); > +#endif > + btw., this #ifdef could sure be eliminated, right? Ingo