1 files changed, 13 insertions, 0 deletions

diff --git a/arch/powerpc/mm/lmb.c b/arch/powerpc/mm/lmb.c
index 8f4d2dc4cafb..4ce23bcf8a57 100644
--- a/arch/powerpc/mm/lmb.c
+++ b/arch/powerpc/mm/lmb.c
@@ -342,3 +342,16 @@ void __init lmb_enforce_memory_limit(unsigned long memory_limit)
                 }
         }
 }
+
+int __init lmb_is_reserved(unsigned long addr)
+{
+        int i;
+
+        for (i = 0; i < lmb.reserved.cnt; i++) {
+                unsigned long upper = lmb.reserved.region[i].base +
+                                      lmb.reserved.region[i].size - 1;
+                if ((addr >= lmb.reserved.region[i].base) && (addr <= upper))
+                        return 1;
+        }
+        return 0;
+}