linux-kernel - Re: [PATCH] x86/Sandy Bridge: reserve pages when integrated graphics is present

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Message-ID: <20121115124711.GA31504@khazad-dum.debian.net>
Date:	Thu, 15 Nov 2012 10:47:11 -0200
From:	Henrique de Moraes Holschuh <hmh@....eng.br>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
Cc:	intel-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86/Sandy Bridge: reserve pages when integrated graphics
 is present

On Wed, 14 Nov 2012, Jesse Barnes wrote:
> +		unsigned long bad_ranges[] = {
> +			0x20050000,
> +			0x20110000,
> +			0x20130000,
> +			0x20138000,
> +			0x40004000,

Yikes.  Can this be fixed through a microcode update?  The kernel would
still need the workaround anyway, but at least you would be able to be quite
heavy-handed on it, and users could be warned of a better fix...

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh
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