diff --git a/target-ppc/helper.c b/target-ppc/helper.c
index 1520d6c..50c480e 100644
--- a/target-ppc/helper.c
+++ b/target-ppc/helper.c
@@ -414,6 +414,22 @@
     return ret;
 }
 
+#if defined(CONFIG_USER_ONLY) 
+target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
+{
+    return addr;
+}
+#else
+target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
+{
+    uint32_t phys_addr;
+    int prot;
+
+    if (get_physical_address(env, &phys_addr, &prot, addr, 0, ACCESS_INT) != 0)
+        return -1;
+    return phys_addr;
+}
+#endif
 
 #if !defined(CONFIG_USER_ONLY)