Allow drivers to query and enable IOMMU_DEV_FEAT_IOPF, which amounts to
checking whether PRI is enabled.
Reviewed-by: NLu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: NJean-Philippe Brucker <jean-philippe@linaro.org>
Link: https://lore.kernel.org/r/20210401154718.307519-5-jean-philippe@linaro.orgSigned-off-by: NJoerg Roedel <jroedel@suse.de>