From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Cox Subject: Re: [PATCH] samsung-laptop: Disable if CONFIG_EFI=y Date: Mon, 5 Nov 2012 12:07:36 +0000 Message-ID: <20121105120736.33af173b@pyramind.ukuu.org.uk> References: <1352050506-29317-1-git-send-email-matt@console-pimps.org> <20121104193741.7b4ca37b@pyramind.ukuu.org.uk> <20121105103031.GA25659@kroah.com> <1352116219.14888.262.camel@mfleming-mobl1.ger.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from lxorguk.ukuu.org.uk ([81.2.110.251]:39246 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751490Ab2KEMCk (ORCPT ); Mon, 5 Nov 2012 07:02:40 -0500 In-Reply-To: <1352116219.14888.262.camel@mfleming-mobl1.ger.corp.intel.com> Sender: platform-driver-x86-owner@vger.kernel.org List-ID: To: Matt Fleming Cc: Greg KH , Corentin Chary , Matthew Garrett , LKML , linux-efi@vger.kernel.org, "platform-driver-x86@vger.kernel.org" , Alessandro Crismani , Mikhail Bakhterev , Patrick H , "H. Peter Anvin" , stable@vger.kernel.org > There is the 'efi_enabled' variable, but it doesn't strictly mean > "this_is_a_uefi_system()", it actually means "Do we have EFI runtime > services?". The whole thing is a bit of a mess and I'm planning on > cleaning it up this week. As far as I can understand it we should be reserving those areas on a UEFI booted machine and just marking them as busy so that they are not available to any drivers to go peering into. Alan