diff --git a/hw/m68k/an5206.c b/hw/m68k/an5206.c
index f1f1350..f63ab2b 100644
--- a/hw/m68k/an5206.c
+++ b/hw/m68k/an5206.c
@@ -50,8 +50,7 @@
     env->rambar0 = AN5206_RAMBAR_ADDR | 1;
 
     /* DRAM at address zero */
-    memory_region_init_ram(ram, NULL, "an5206.ram", ram_size, &error_abort);
-    vmstate_register_ram_global(ram);
+    memory_region_allocate_system_memory(ram, NULL, "an5206.ram", ram_size);
     memory_region_add_subregion(address_space_mem, 0, ram);
 
     /* Internal SRAM.  */
diff --git a/hw/m68k/dummy_m68k.c b/hw/m68k/dummy_m68k.c
index 278f4c0..5b77d93 100644
--- a/hw/m68k/dummy_m68k.c
+++ b/hw/m68k/dummy_m68k.c
@@ -42,8 +42,8 @@
     env->vbr = 0;
 
     /* RAM at address zero */
-    memory_region_init_ram(ram, NULL, "dummy_m68k.ram", ram_size, &error_abort);
-    vmstate_register_ram_global(ram);
+    memory_region_allocate_system_memory(ram, NULL, "dummy_m68k.ram",
+                                         ram_size);
     memory_region_add_subregion(address_space_mem, 0, ram);
 
     /* Load kernel.  */
diff --git a/hw/m68k/mcf5208.c b/hw/m68k/mcf5208.c
index a01a445..326a42d 100644
--- a/hw/m68k/mcf5208.c
+++ b/hw/m68k/mcf5208.c
@@ -218,8 +218,7 @@
     /* TODO: Configure BARs.  */
 
     /* DRAM at 0x40000000 */
-    memory_region_init_ram(ram, NULL, "mcf5208.ram", ram_size, &error_abort);
-    vmstate_register_ram_global(ram);
+    memory_region_allocate_system_memory(ram, NULL, "mcf5208.ram", ram_size);
     memory_region_add_subregion(address_space_mem, 0x40000000, ram);
 
     /* Internal SRAM.  */