On 2022/10/26 2:12, Jason Gunthorpe wrote:
This queries if a domain linked to a device should expect to support enforce_cache_coherency() so iommufd can negotiate the rules for when a domain should be shared or not.
For iommufd a device that declares IOMMU_CAP_ENFORCE_CACHE_COHERENCY will not be attached to a domain that does not support it.
Signed-off-by: Jason Gunthorpejgg@nvidia.com
Reviewed-by: Lu Baolu baolu.lu@linux.intel.com
Best regards, baolu