Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762629Ab3DDO53 (ORCPT ); Thu, 4 Apr 2013 10:57:29 -0400 Received: from mail-oa0-f46.google.com ([209.85.219.46]:39889 "EHLO mail-oa0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762604Ab3DDO50 (ORCPT ); Thu, 4 Apr 2013 10:57:26 -0400 MIME-Version: 1.0 In-Reply-To: <20130404145012.GA3403@neilslaptop.think-freely.org> References: <1362158276-4901-1-git-send-email-nhorman@tuxdriver.com> <1362423859-18516-1-git-send-email-nhorman@tuxdriver.com> <1365085649.28127.66.camel@i7.infradead.org> <20130404145012.GA3403@neilslaptop.think-freely.org> From: Bjorn Helgaas Date: Thu, 4 Apr 2013 08:57:06 -0600 Message-ID: Subject: Re: [PATCH v2] irq: add quirk for broken interrupt remapping on 55XX chipsets To: Neil Horman Cc: David Woodhouse , Prarit Bhargava , Don Zickus , Jiang Liu , Asit Mallick , "linux-pci@vger.kernel.org" , "linux-kernel@vger.kernel.org" , iommu@lists.linux-foundation.org, Yinghai Lu Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1188 Lines: 24 On Thu, Apr 4, 2013 at 8:50 AM, Neil Horman wrote: > On Thu, Apr 04, 2013 at 03:27:29PM +0100, David Woodhouse wrote: >> On Wed, 2013-04-03 at 17:53 -0600, Bjorn Helgaas wrote: >> > ); >> > > + >> > > + if ((revision == 0x13) && irq_remapping_enabled) { >> > > + pr_warn(HW_ERR "This system BIOS has enabled interrupt remapping\n" >> > > + "on a chipset that contains an errata making that\n" >> > > + "feature unstable. Please reboot with nointremap\n" >> > > + "added to the kernel command line and contact\n" >> > > + "your BIOS vendor for an update"); >> >> This should be WARN_TAINT(TAINT_FIRMWARE_WORKAROUND). And 'an erratum'. >> > Ok, copy that. I'll repost shortly When you do, please include URLs for any problem reports or bugzillas you have. I assume Windows "just works" in this situation? -- 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/