diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h
index 869ba41..cffdc13 100644
--- a/include/exec/cpu-common.h
+++ b/include/exec/cpu-common.h
@@ -63,6 +63,7 @@
 void qemu_ram_set_idstr(RAMBlock *block, const char *name, DeviceState *dev);
 void qemu_ram_unset_idstr(RAMBlock *block);
 const char *qemu_ram_get_idstr(RAMBlock *rb);
+size_t qemu_ram_pagesize(RAMBlock *block);
 
 void cpu_physical_memory_rw(hwaddr addr, uint8_t *buf,
                             int len, int is_write);