[PATCH] x86/Sandy Bridge: reserve pages when integrated graphics is present

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On Thu, 15 Nov 2012 10:47:11 -0200
Henrique de Moraes Holschuh <hmh at hmh.eng.br> wrote:

> 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...

No, this affects the logic on the GPU side, so there's no microcode way
to fix it.

-- 
Jesse Barnes, Intel Open Source Technology Center


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