On 2022/5/2 21:19, Jason Gunthorpe wrote:
On Sun, May 01, 2022 at 07:24:34PM +0800, Lu Baolu wrote:
As enforce_cache_coherency has been introduced into the iommu_domain_ops,
the kernel component which owns the iommu domain is able to opt-in its
requirement for force snooping support. The iommu driver has no need to
hard code the page snoop control bit in the PASID table entries anymore.

Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
  drivers/iommu/intel/pasid.h | 1 -
  drivers/iommu/intel/iommu.c | 3 ---
  drivers/iommu/intel/pasid.c | 6 ------
  3 files changed, 10 deletions(-)

It seems fine, but as in the other email where do we do
pasid_set_pgsnp() for a new device attach on an already no-snopp domain?

Yes. I will take care of this in the next version.

Jason

Best regards,
baolu
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