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

2018-07-15 Thread Peter Xu
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

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

2018-07-14 Thread Lu Baolu
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