diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 9774f53b8f0fedd6169f7276e678f3c18b3cf9fc..cd61f53188e2159f268abca0cad27ba06a9d06c1 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2137,6 +2137,8 @@ static int attach_device(struct device *dev,
 	 */
 	domain_flush_tlb_pde(domain);
 
+	domain_flush_complete(domain);
+
 	return ret;
 }