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From: Arjan van de Ven <arjan@infradead.org>
To: Andi Kleen <andi@firstfloor.org>
Cc: David Woodhouse <dwmw2@infradead.org>,
	torvalds@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: Misc fixes for 2.6.27
Date: Mon, 1 Sep 2008 15:35:17 -0700	[thread overview]
Message-ID: <20080901153517.2f8b1ef8@infradead.org> (raw)
In-Reply-To: <87wshvwl8v.fsf@basil.nowhere.org>

On Tue, 02 Sep 2008 00:32:16 +0200
Andi Kleen <andi@firstfloor.org> wrote:

> David Woodhouse <dwmw2@infradead.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.



-- 
If you want to reach me at my work email, use arjan@linux.intel.com
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org

  reply	other threads:[~2008-09-01 22:35 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-01 20:14 Misc fixes for 2.6.27 David Woodhouse
2008-09-01 22:32 ` Andi Kleen
2008-09-01 22:35   ` Arjan van de Ven [this message]
2008-09-01 23:01     ` Andi Kleen
2008-09-01 23:16       ` Arjan van de Ven
2008-09-02  6:19         ` Andi Kleen
2008-09-02  8:23           ` David Woodhouse
2008-09-03 10:53           ` Blacklist DMAR on Intel G31/G33 chipsets David Woodhouse
2008-09-03 12:09             ` Andi Kleen
2008-09-03 12:22               ` David Woodhouse
2008-09-04  8:54             ` [PATCH] " David Woodhouse
2008-09-05 18:34               ` Ingo Molnar
2008-09-05 18:47                 ` David Woodhouse
2008-09-06 15:49                   ` Ingo Molnar
2008-09-07  8:20                     ` David Woodhouse
2008-09-07 15:35                 ` [2.6.27 PATCH] " David Woodhouse
2008-09-09 18:39                   ` Jesse Barnes

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