Message-ID: <1352117386.14888.276.camel@mfleming-mobl1.ger.corp.intel.com>
Subject: Re: [PATCH] samsung-laptop: Disable if CONFIG_EFI=y
From: Matt Fleming <matt@console-pimps.org>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Greg KH <gregkh@linuxfoundation.org>,
        Corentin Chary <corentincj@iksaif.net>,
        Matthew Garrett <mjg@redhat.com>, LKML <linux-kernel@vger.kernel.org>,
        linux-efi@vger.kernel.org,
        "platform-driver-x86@vger.kernel.org" 
	<platform-driver-x86@vger.kernel.org>,
        Alessandro Crismani <alessandro.crismani@gmail.com>,
        Mikhail Bakhterev <mike.bakhterev@gmail.com>,
        Patrick H <kernel@feystorm.net>, "H. Peter Anvin" <hpa@zytor.com>,
        stable@vger.kernel.org
Date: Mon, 05 Nov 2012 12:09:46 +0000
In-Reply-To: <20121105120736.33af173b@pyramind.ukuu.org.uk>
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On Mon, 2012-11-05 at 12:07 +0000, Alan Cox wrote:
> > 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.

Yes, that would be the best way to resolve this going forward.

-- 
Matt Fleming, Intel Open Source Technology Center

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