Re: [PATCH v5 1/9] iommu/vt-d: Global PASID name space

From: Peter Xu
Date: Mon Jul 16 2018 - 01:28:34 EST


On Sat, Jul 14, 2018 at 03:46:54PM +0800, Lu Baolu wrote:
> This adds the system wide PASID name space for the PASID
> allocation. Currently we are using per IOMMU PASID name
> spaces which are not suitable for some use cases. For an
> example, one application (associated with a PASID) might
> talk to two physical devices simultaneously while the two
> devices could reside behind two different IOMMU units.
>
> Cc: Ashok Raj <ashok.raj@xxxxxxxxx>
> Cc: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>
> Cc: Kevin Tian <kevin.tian@xxxxxxxxx>
> Cc: Liu Yi L <yi.l.liu@xxxxxxxxx>
> Suggested-by: Ashok Raj <ashok.raj@xxxxxxxxx>
> Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
> Reviewed-by: Liu Yi L <yi.l.liu@xxxxxxxxx>

Reviewed-by: Peter Xu <peterx@xxxxxxxxxx>

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Peter Xu