Re: [patch 0/4] Intel IOMMU Supspend/Resume Support

[David Woodhouse]

On Fri, 2009-03-27 at 14:22 -0700, Fenghua Yu wrote:
> Current Intel IOMMU does not support suspend and resume. In S3 event, kernel
> crashes when DMAR or interrupt remapping is running.
> 
> The attached patch set implements the suspend and resume feature for Intel
> IOMMU. It hooks to kernel suspend and resume interface. When suspend happens, itsaves necessary hardware registers. When resume happens, it restores the
> registers and restarts IOMMU.
> 
> This patch set can be applied on the tip tree. 

Looks good to me, apart from the fact that your #4 patch actually needs
to come before #1. Shall I apply it to my iommu-2.6.git tree or let Ingo
take it? If the latter, 

Acked-by: David Woodhouse <David.Woodhouse@xxxxxxxxx>
Acked-by: David Woodhouse <David.Woodhouse@xxxxxxxxx>
Acked-by: David Woodhouse <David.Woodhouse@xxxxxxxxx>
Acked-by: David Woodhouse <David.Woodhouse@xxxxxxxxx>

(if you look carefully, you'll see those are in order 4, 1, 2, 3)

Have we tested this on IA64?

-- 
David Woodhouse                            Open Source Technology Centre
David.Woodhouse@xxxxxxxxx                              Intel Corporation

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