1 files changed, 1 insertions, 0 deletions

diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index af7216128d93..29834b3fd87f 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -595,6 +595,7 @@ char * __init xen_memory_setup(void)
                 rc = 0;
         }
         BUG_ON(rc);
+        BUG_ON(memmap.nr_entries == 0);
 
         /*
          * Xen won't allow a 1:1 mapping to be created to UNUSABLE