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

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Date:	Tue, 2 Apr 2013 17:03:04 +0200
From:	Joerg Roedel <joro@...tes.org>
To:	Borislav Petkov <bp@...en8.de>, 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 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?


	Joerg


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