diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 4a43bc31ed3c..a50c6e3a7cc4 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -349,8 +349,6 @@ static enum bp_state increase_reservation(unsigned long nr_pages)
 		BUG_ON(page == NULL);
 
 		pfn = page_to_pfn(page);
-		BUG_ON(!xen_feature(XENFEAT_auto_translated_physmap) &&
-		       phys_to_machine_mapping_valid(pfn));
 
 		set_phys_to_machine(pfn, frame_list[i]);