From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754822Ab3KGVLC (ORCPT ); Thu, 7 Nov 2013 16:11:02 -0500 Received: from terminus.zytor.com ([198.137.202.10]:45045 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752784Ab3KGVK4 (ORCPT ); Thu, 7 Nov 2013 16:10:56 -0500 Message-ID: <527C0195.50008@zytor.com> Date: Thu, 07 Nov 2013 13:09:41 -0800 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: Ard Biesheuvel , x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org CC: gregkh@linuxfoundation.org, catalin.marinas@arm.com, will.deacon@arm.com, tglx@linutronix.de, Ingo Molnar , steve.capper@linaro.org, Andi Kleen Subject: Re: [RFC PATCH 0/4] wire up CPU features to udev based module loading References: <1383844657-17487-1-git-send-email-ard.biesheuvel@linaro.org> In-Reply-To: <1383844657-17487-1-git-send-email-ard.biesheuvel@linaro.org> X-Enigmail-Version: 1.6 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 On 11/07/2013 09:17 AM, Ard Biesheuvel wrote: > This series implements automatic module loading based on optional CPU features, > and tries to do so in a generic way. Currently, 32 feature bits are supported, > and how they map to actual CPU features is entirely up to the architecture. NAK. We in the x86 world already left 32 bits way behind; we currently have 320 bit feature masks. If you're aiming at doing this in a generic way, it needs to be able to accommodate the current x86cpu feature stuff as a subset, which this doesn't. -hpa