[PATCH v5 07/12] iommufd: Allocate auto_domain with IOMMU_HWPT_ALLOC_PASID flag if device is PASID-capable

[Yi Liu <yi.l.liu@intel.com>]

iommufd cannot predict if user will use pasid or not, but if user is
going to use it, the domains used by PASID-capable device should be
allocated with IOMMU_HWPT_ALLOC_PASID flag.

For domain allocated per userspace request, user should provide this
flag. While for the auto_domain, iommufd needs to make it.

Signed-off-by: Yi Liu <yi.l.liu@intel.com>
---
 drivers/iommu/iommufd/device.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/iommu/iommufd/device.c b/drivers/iommu/iommufd/device.c
index 4e7a473d0dd0..a52937fba366 100644
--- a/drivers/iommu/iommufd/device.c
+++ b/drivers/iommu/iommufd/device.c
@@ -650,7 +650,9 @@ iommufd_device_auto_get_domain(struct iommufd_device *idev, ioasid_t pasid,
 		goto out_unlock;
 	}
 
-	hwpt_paging = iommufd_hwpt_paging_alloc(idev->ictx, ioas, idev, 0,
+	hwpt_paging = iommufd_hwpt_paging_alloc(idev->ictx, ioas, idev,
+						idev->dev->iommu->max_pasids ?
+						IOMMU_HWPT_ALLOC_PASID : 0,
 						immediate_attach, NULL);
 	if (IS_ERR(hwpt_paging)) {
 		destroy_hwpt = ERR_CAST(hwpt_paging);
-- 
2.34.1