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Message-ID: <20080901153517.2f8b1ef8@infradead.org>
Date: Mon, 1 Sep 2008 15:35:17 -0700
From: Arjan van de Ven <arjan@...radead.org>
To: Andi Kleen <andi@...stfloor.org>
Cc: David Woodhouse <dwmw2@...radead.org>,
torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: Misc fixes for 2.6.27
On Tue, 02 Sep 2008 00:32:16 +0200
Andi Kleen <andi@...stfloor.org> wrote:
> David Woodhouse <dwmw2@...radead.org> writes:
> > +
> > +static struct dmi_system_id __initdata intel_iommu_dmi_table[] = {
> > + { /* Some DG33BU BIOS revisions advertised
> > non-existent VT-d */
>
> Are you sure it's non existent? A G33 chipset should have it in
> hardware I thought.
nope they don't/
later ones and some other models do though, but not the G33
>
> I'm not sure this is really the right way to handle this anyways.
> If there's ever a working BIOS it will be blacklisted too. And
> normally BIOS bugs don't come in one board alone, but in a range
> of them and then adding more and more identifiers is quite painful.
the bios bug here is that it accidentally DID advertise the capability,
even though it's not there.
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