From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1757380Ab3A1O3g (ORCPT <rfc822;w@1wt.eu>);
	Mon, 28 Jan 2013 09:29:36 -0500
Received: from 8bytes.org ([85.214.48.195]:52845 "EHLO mail.8bytes.org"
	rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
	id S1756514Ab3A1O3e (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
	Mon, 28 Jan 2013 09:29:34 -0500
Date: Mon, 28 Jan 2013 15:29:28 +0100
From: Joerg Roedel <joro@8bytes.org>
To: "Steven L. Kinney" <steven.kinney@amd.com>
Cc: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>, x86@kernel.org,
        Bjorn Helgaas <bhelgaas@google.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Sebastian Andrzej Siewior <sebastian@breakpoint.cc>,
        Myron Stowe <myron.stowe@redhat.com>, Hiroshi DOYU <hdoyu@nvidia.com>,
        Stephen Warren <swarren@wwwdotorg.org>, Jiri Kosina <jkosina@suse.cz>,
        Kukjin Kim <kgene.kim@samsung.com>, linux-kernel@vger.kernel.org,
        iommu@lists.linux-foundation.org,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Paul Mackerras <paulus@samba.org>,
        Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
        Thomas Renninger <trenn@suse.de>, Andi Kleen <ak@linux.intel.com>,
        Cyrill Gorcunov <gorcunov@openvz.org>
Subject: Re: [PATCH 1/3] AMD x86 quirks: Quirk for enabling IOMMUv2 PC feature
Message-ID: <20130128142928.GZ25591@8bytes.org>
References: <1358799658-6236-1-git-send-email-steven.kinney@amd.com>
 <1358799658-6236-2-git-send-email-steven.kinney@amd.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <1358799658-6236-2-git-send-email-steven.kinney@amd.com>
User-Agent: Mutt/1.5.21 (2010-09-15)
X-DSPAM-Result: Whitelisted
X-DSPAM-Processed: Mon Jan 28 15:29:33 2013
X-DSPAM-Confidence: 0.9996
X-DSPAM-Probability: 0.0000
X-DSPAM-Signature: 51068b4d22971684313333
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Mon, Jan 21, 2013 at 02:20:56PM -0600, Steven L. Kinney wrote:
> From: "Steven L. Kinney" <steven.kinney@amd.com>
> 
> Original code base by Andreas Herrmann at AMD with minor changes.

Why is it safe to enable this feature when it was disabled by BIOS? Was
it disabled for no reason?


	Joerg