linux-kernel - Re: [PATCH 1/3] iommu/amd: Add logic to decode AMD IOMMU event flag

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Message-ID: <20130402152956.GE4391@pd.tnic>
Date:	Tue, 2 Apr 2013 17:29:56 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Joerg Roedel <joro@...tes.org>
Cc:	suravee.suthikulpanit@....com, iommu@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] iommu/amd: Add logic to decode AMD IOMMU event flag

On Tue, Apr 02, 2013 at 05:03:04PM +0200, Joerg Roedel wrote:
> On Tue, Apr 02, 2013 at 04:40:37PM +0200, Borislav Petkov wrote:
> > While you guys are at it, can someone fix this too pls (ASUS board with
> > a PD on it).
> > 
> > [    0.220342] [Firmware Bug]: AMD-Vi: IOAPIC[9] not in IVRS table
> > [    0.220398] [Firmware Bug]: AMD-Vi: IOAPIC[10] not in IVRS table
> > [    0.220451] [Firmware Bug]: AMD-Vi: No southbridge IOAPIC found in IVRS table
> > [    0.220506] AMD-Vi: Disabling interrupt remapping due to BIOS Bug(s)
> 
> That is actually a BIOS problem. I wonder whether it would help to turn this
> into a WARN_ON to get the board vendors to release working BIOSes.
> Opinions?

Good luck trying to get ASUS to fix anything in their BIOS :(.

Can't we detect the SB IOAPIC some other way in this case?

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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