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

[Andrew Lutomirski]

Works for me (applied to current -tip).  I suspended and resumed just
fine, with no errors logged and all hardware apparently still working.

Tested-by: Andy Lutomirski <amluto@xxxxxxxxx>

Thanks for the patch!
Andy

On Fri, Mar 27, 2009 at 5:22 PM, Fenghua Yu <fenghua.yu@xxxxxxxxx> 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.
>
> --
>
>
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