From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Renninger Subject: Re: [PATCH] ACPI: Disable _GTS and _BFS support by default Date: Mon, 20 Apr 2009 11:01:06 +0200 Message-ID: <200904201101.07693.trenn@suse.de> References: Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from cantor.suse.de ([195.135.220.2]:52118 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751086AbZDTJBK (ORCPT ); Mon, 20 Apr 2009 05:01:10 -0400 In-Reply-To: Content-Disposition: inline Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Len Brown Cc: linux-acpi@vger.kernel.org, jm@lentin.co.uk, yakui.zhao@intel.com On Saturday 18 April 2009 05:51:42 Len Brown wrote: > From: Len Brown > > Executing BIOS code paths not exercised by Windows > tends to get Linux into trouble. Where do we know Windows does not use them? Is that confirmed by a Windows developer or has this been tried with KVM? For the latter, it could be that these are only called under certain circumstances. > However, if a system does benefit from _GTS or _BFS, > acpi.gts=1 an acpi.bfs=1 are now available to enable them. If the systems works better it's probably a good idea to add that patch, I'd just like to know how sure we can be that Windows never calls these. Thanks, Thomas > http://bugzilla.kernel.org/show_bug.cgi?id=13041