[PATCH v4 22/22] iommu: use sva invalidate and device fault trace event

2018-04-16 Thread Jacob Pan
For performance and debugging purposes, these trace events help analyzing device faults and passdown invalidations that interact with IOMMU subsystem. E.g. IOMMU::00:0a.0 type=2 reason=0 addr=0x007ff000 pasid=1 group=1 last=0 prot=1 Signed-off-by: Jacob Pan

[PATCH v4 22/22] iommu: use sva invalidate and device fault trace event

2018-03-22 Thread Jacob Pan
For performance and debugging purposes, these trace events help analyzing device faults and passdown invalidations that interact with IOMMU subsystem. E.g. IOMMU::00:0a.0 type=2 reason=0 addr=0x007ff000 pasid=1 group=1 last=0 prot=1 Signed-off-by: Jacob Pan