diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 03944e76b7005051118b1b3efa12d8549a94f025..edd291070b0b926357b868858ec5023504228977 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -3238,6 +3238,8 @@ int __init amd_iommu_init_passthrough(void)
 		attach_device(&dev->dev, pt_domain);
 	}
 
+	amd_iommu_stats_init();
+
 	pr_info("AMD-Vi: Initialized for Passthrough Mode\n");
 
 	return 0;