diff --git a/include/mm/mm.h b/include/mm/mm.h
index 5b2fc5a..a1a6c45 100644
--- a/include/mm/mm.h
+++ b/include/mm/mm.h
@@ -176,6 +176,18 @@ void *MmGetStackGuards(char rank);
 void *MmTransVirtToPhyAddr(void*);
 void *MmTransPhyToVirtAddr(void* virtualAddr);
 
+//
+// Set flags to a page
+//
+void MmSetPage(void* virtualAddr, ulong flags);
+void MmUnSetPage(void* virtualAddr, ulong flags);
+
+//
+// Map a page
+//
+void MmMapPage(void* virtualAddr, void* physicalAddr, ulong flags)
+void MmUnmapPage(void* virtualAddr);
+
 // Page table entry
 typedef ulong    pte_t;