Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758923AbYF0Os2 (ORCPT ); Fri, 27 Jun 2008 10:48:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755943AbYF0OsU (ORCPT ); Fri, 27 Jun 2008 10:48:20 -0400 Received: from smtp-out01.alice-dsl.net ([88.44.60.11]:22453 "EHLO smtp-out01.alice-dsl.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755425AbYF0OsU (ORCPT ); Fri, 27 Jun 2008 10:48:20 -0400 To: Adrian Bunk Cc: Joerg Roedel , tglx@linutronix.de, mingo@redhat.com, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, bhavna.sarathy@amd.com, Sebastian.Biemueller@amd.com, robert.richter@amd.com, joro@8bytes.org Subject: Re: [PATCH 01/34] AMD IOMMU: add Kconfig entry From: Andi Kleen References: <1214508490-29683-1-git-send-email-joerg.roedel@amd.com> <1214508490-29683-2-git-send-email-joerg.roedel@amd.com> <20080627142558.GG18644@cs181140183.pp.htv.fi> Date: Fri, 27 Jun 2008 16:47:29 +0200 In-Reply-To: <20080627142558.GG18644@cs181140183.pp.htv.fi> (Adrian Bunk's message of "Fri, 27 Jun 2008 17:25:58 +0300") Message-ID: <878wwrq6im.fsf@basil.nowhere.org> User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-OriginalArrivalTime: 27 Jun 2008 14:40:11.0708 (UTC) FILETIME=[B4395FC0:01C8D863] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 751 Lines: 21 Adrian Bunk writes: > > This tells neither what as IOMMU is nor whether my system actually has > one. > > Please shortly describe in the help text what an IOMMU is and which > AMD systems have an IOMMU. > > The goal is that a system administrator building a kernel for his system > gets enough information for deciding whether to enable or disable this > option. Also it should ideally describe that there is a trade off between reliability and performance with IOMMU enabled. -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/