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Re: [Xen-devel] [PATCH] AMD IOMMU: Parse IVRS table early to prevent iom

To: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] AMD IOMMU: Parse IVRS table early to prevent iommu_enabled from being disabled
From: Wei Wang2 <wei.wang2@xxxxxxx>
Date: Wed, 28 Oct 2009 18:46:23 +0100
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On Wednesday 28 October 2009 18:30:31 Keir Fraser wrote:
> On 28/10/2009 16:31, "Wei Wang2" <wei.wang2@xxxxxxx> wrote:
> > This patch moves IVRS table parsing functions into an early position,
> > which prevent iommu_enabled from being disabled by failure dmar table
> > detection.
>
> Not nice. See if c/s 20381 fixes your problem. It's justa  cleanup of some
> VT-d code which should avoid the problem altogether.
>
>  -- Keir

Thanks, I have not checked 20381 while creating this patch. I will test it 
again and send something new if necessary.
-Wei


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