Re: [PATCH v3 01/15] iommu: Add IOMMU_CAP_ENFORCE_CACHE_COHERENCY

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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 Gunthorpe<jgg@xxxxxxxxxx>

Reviewed-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>

Best regards,
baolu



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