[PATCH v2 0/2] iommu: Remove iommu_sva_ops::mm_exit()

Jacob Pan jacob.jun.pan at linux.intel.com
Thu May 28 15:33:20 UTC 2020


On Thu, 28 May 2020 11:32:50 +0800
Lu Baolu <baolu.lu at linux.intel.com> wrote:

> Hi Jorge,
> 
> On 2020/5/27 20:42, Joerg Roedel wrote:
> > Hi Jean-Philippe,
> > 
> > On Wed, May 27, 2020 at 12:10:38PM +0200, Jean-Philippe Brucker
> > wrote:  
> >> I was wondering if you could take these two patches for v5.8. The
> >> API change is a precursor for the SVA support in SMMUv3, and the
> >> VT-d implementation of the SVA API (queued for 5.8) doesn't
> >> implement iommu_sva_ops.  
> > 
> > I'd like some Acks on patch 2 (at least from the Intel people)
> > before going ahead with this.
> >   
> 
> Patch 2 in this series looks good to me.
> 
> Acked-by: Lu Baolu <baolu.lu at linux.intel.com>
> 
> +Jacob, he participated in the discussions.
> 
Patch 2 looks good to me, VT-d has a similar flow and challenge to stop
DMA in mm_exit. We disable fault reporting during this window between
mm_exit and FD close trigged unbind.

Acked-by: Jacob Pan <jacob.jun.pan at linux.intel.com>

> Best regards,
> baolu

[Jacob Pan]


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