diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index e8a4a84c33d1b8e037cfa3e6317a7b0631b6954f..0a7546b4824ad437f31062ff0d3f71a18a9a5999 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2151,6 +2151,8 @@ static int attach_device(struct device *dev,
 	 */
 	domain_flush_tlb_pde(domain);
 
+	domain_flush_complete(domain);
+
 	return ret;
 }