From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755143Ab3FTHsf (ORCPT ); Thu, 20 Jun 2013 03:48:35 -0400 Received: from mail.skyhub.de ([78.46.96.112]:55419 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754569Ab3FTHsc (ORCPT ); Thu, 20 Jun 2013 03:48:32 -0400 Date: Thu, 20 Jun 2013 09:48:24 +0200 From: Borislav Petkov To: "Naveen N. Rao" Cc: tony.luck@intel.com, ananth@in.ibm.com, masbock@linux.vnet.ibm.com, lcm@linux.vnet.ibm.com, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, ying.huang@intel.com Subject: Re: [PATCH v2 2/2] mce: acpi/apei: Add a boot option to disable ff mode for corrected errors Message-ID: <20130620074824.GF32694@pd.tnic> References: <20130619175438.2852.93449.stgit@localhost.localdomain> <20130619175728.2852.73156.stgit@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20130619175728.2852.73156.stgit@localhost.localdomain> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jun 19, 2013 at 11:27:42PM +0530, Naveen N. Rao wrote: > Add a boot option to disable firmware first mode for corrected errors. > > Signed-off-by: Naveen N. Rao > --- > Documentation/x86/x86_64/boot-options.txt | 5 +++++ > arch/x86/include/asm/acpi.h | 2 ++ > arch/x86/kernel/acpi/boot.c | 5 +++++ > drivers/acpi/apei/hest.c | 3 ++- > 4 files changed, 14 insertions(+), 1 deletion(-) > > diff --git a/Documentation/x86/x86_64/boot-options.txt b/Documentation/x86/x86_64/boot-options.txt > index e9e8ddb..1228b22 100644 > --- a/Documentation/x86/x86_64/boot-options.txt > +++ b/Documentation/x86/x86_64/boot-options.txt > @@ -176,6 +176,11 @@ ACPI > > acpi=noirq Don't route interrupts > > + acpi=nocmcff Disable firmware first mode for corrected errors. This > + disables parsing the HEST CMC error source to check if > + firmware has set the FF flag. This may result in > + duplicate corrected error reports. Ok, this option should be called something more vendor-agnostic like acpi=noff for example. CMCI is Intel-specific and Firmware First is a generic way to say that firmware would like to look at the errors first. AMD has similar thing called error thresholding so... -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. --