Re: [PATCH v3 1/1] PCI/ATS: Check PRI supported on the PF device when SRIOV is enabled

On Thu, Jul 23, 2020 at 03:37:29PM -0700, Ashok Raj wrote:

PASID and PRI capabilities are only enumerated in PF devices. VF devices do not enumerate these capabilites. IOMMU drivers also need to enumerate them before enabling features in the IOMMU. Extending the same support as PASID feature discovery (pci_pasid_features) for PRI.

Fixes: b16d0cb9e2fc ("iommu/vt-d: Always enable PASID/PRI PCI capabilities before ATS") Signed-off-by: Ashok Raj ashok.raj@intel.com

Acked-by: Joerg Roedel jroedel@suse.de