diff --git a/memory.c b/memory.c
index 33799e8..ecb565e 100644
--- a/memory.c
+++ b/memory.c
@@ -1376,6 +1376,21 @@
     mr->alias_offset = offset;
 }
 
+void memory_region_init_rom(MemoryRegion *mr,
+                            struct Object *owner,
+                            const char *name,
+                            uint64_t size,
+                            Error **errp)
+{
+    memory_region_init(mr, owner, name, size);
+    mr->ram = true;
+    mr->readonly = true;
+    mr->terminates = true;
+    mr->destructor = memory_region_destructor_ram;
+    mr->ram_block = qemu_ram_alloc(size, mr, errp);
+    mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0;
+}
+
 void memory_region_init_rom_device(MemoryRegion *mr,
                                    Object *owner,
                                    const MemoryRegionOps *ops,