Re: [PATCH v12 03/10] iommu: Separate IOMMU_DEV_FEAT_IOPF from IOMMU_DEV_FEAT_SVA

2021-01-31 Thread Auger Eric
Hi Jean, On 1/27/21 4:43 PM, Jean-Philippe Brucker wrote: > Some devices manage I/O Page Faults (IOPF) themselves instead of relying > on PCIe PRI or Arm SMMU stall. Allow their drivers to enable SVA without > mandating IOMMU-managed IOPF. The other device drivers now need to first > enable

[PATCH v12 03/10] iommu: Separate IOMMU_DEV_FEAT_IOPF from IOMMU_DEV_FEAT_SVA

2021-01-27 Thread Jean-Philippe Brucker
Some devices manage I/O Page Faults (IOPF) themselves instead of relying on PCIe PRI or Arm SMMU stall. Allow their drivers to enable SVA without mandating IOMMU-managed IOPF. The other device drivers now need to first enable IOMMU_DEV_FEAT_IOPF before enabling IOMMU_DEV_FEAT_SVA. Enabling