From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756534Ab2GYL2U (ORCPT ); Wed, 25 Jul 2012 07:28:20 -0400 Received: from lxorguk.ukuu.org.uk ([81.2.110.251]:47199 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755270Ab2GYL2S (ORCPT ); Wed, 25 Jul 2012 07:28:18 -0400 Date: Wed, 25 Jul 2012 12:31:32 +0100 From: Alan Cox To: Vladimir Davydov Cc: Andre Przywara , Borislav Petkov , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Andi Kleen , Borislav Petkov , "x86@kernel.org" , "linux-kernel@vger.kernel.org" , Andreas Herrmann , Pavel Emelianov , Konstantin Khorenko , Daniel Lezcano Subject: Re: [PATCH 2/2] cpu: intel, amd: mask cleared cpuid features Message-ID: <20120725123132.7a43399b@pyramind.ukuu.org.uk> In-Reply-To: <500FCB02.2080603@parallels.com> References: <73e09fb43e37de851acda10dc64bc495a5b68357.1342801662.git.vdavydov@parallels.com> <20120721103715.GA3632@aftab.osrc.amd.com> <500E4960.8040307@parallels.com> <500E5951.5020900@amd.com> <500E5CDF.5000504@parallels.com> <20120724101041.GA24739@aftab.osrc.amd.com> <500E8280.6050905@parallels.com> <500E9664.9030306@amd.com> <20120724134405.7a42b5bd@pyramind.ukuu.org.uk> <500FCB02.2080603@parallels.com> X-Mailer: Claws Mail 3.8.0 (GTK+ 2.24.8; x86_64-redhat-linux-gnu) Face: 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 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 25 Jul 2012 14:31:30 +0400 Vladimir Davydov wrote: > On 07/24/2012 04:44 PM, Alan Cox wrote: > >> This approach does not need any kernel support (except for the > >> /proc/cpuinfo filtering). Does this address the issues you have? > > You can do the /proc/cpuinfo filtering in user space too > > > > How? bind mount your own normal file over the top or a FUSE file