Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760001AbXKHNux (ORCPT ); Thu, 8 Nov 2007 08:50:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753964AbXKHNup (ORCPT ); Thu, 8 Nov 2007 08:50:45 -0500 Received: from jabberwock.ucw.cz ([89.250.246.4]:43580 "EHLO jabberwock.ucw.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752709AbXKHNup (ORCPT ); Thu, 8 Nov 2007 08:50:45 -0500 Date: Thu, 8 Nov 2007 14:50:42 +0100 From: Martin Mares To: Arjan van de Ven Cc: Linus Torvalds , Robert Hancock , Greg KH , Jesse Barnes , akpm@linux-foundation.org, ak@suse.de, rajesh.shah@intel.com, linux-kernel Subject: Re: pci-disable-decode-of-io-memory-during-bar-sizing.patch Message-ID: References: <20071026025407.GA21408@kroah.com> <200710260959.46811.jbarnes@virtuousgeek.org> <20071027024140.GC29039@kroah.com> <47267232.3020506@shaw.ca> <20071030094756.779ac5c0@laptopd505.fenrus.org> <20071030102820.47a6e365@laptopd505.fenrus.org> <20071101070855.1e8ef975@laptopd505.fenrus.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20071101070855.1e8ef975@laptopd505.fenrus.org> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1003 Lines: 25 Hello! > > Maybe we should do all bus scanning with conf1 and then try if > > MMCONFIG returns the same values? > > that is already in the code today but not nearly enough; there's a ton > of cases where it's "touch mmconfig and the box is dead"... Argh. However I still do not think it is an acceptable reason for breaking all userspace access to the extended config space. At the very least, there should be a sysfs toggle to enable MMCONFIG if root really wishes that (maybe for a particular device, as the drivers would do). Have a nice fortnight -- Martin `MJ' Mares http://mj.ucw.cz/ Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth Do not believe in miracles -- rely on them. - 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/