diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 9a114b9..5c40937 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -732,6 +732,10 @@
 	spin_lock_init(&priv->pgtablelock);
 	INIT_LIST_HEAD(&priv->clients);
 
+	dom->geometry.aperture_start = 0;
+	dom->geometry.aperture_end   = ~0UL;
+	dom->geometry.force_aperture = true;
+
 	domain->priv = priv;
 	return 0;