memory_region_allocate_system_memory() API is going away, so
replace it with memdev allocated MemoryRegion. The later is
initialized by generic code, so board only needs to opt in
to memdev scheme by providing
  MachineClass::default_ram_id
and using MachineState::ram instead of manually initializing
RAM memory region.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
---
 hw/ppc/mac_newworld.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c
index 464d012..b8189bf 100644
--- a/hw/ppc/mac_newworld.c
+++ b/hw/ppc/mac_newworld.c
@@ -118,7 +118,7 @@ static void ppc_core99_init(MachineState *machine)
     char *filename;
     IrqLines *openpic_irqs;
     int linux_boot, i, j, k;
-    MemoryRegion *ram = g_new(MemoryRegion, 1), *bios = g_new(MemoryRegion, 1);
+    MemoryRegion *bios = g_new(MemoryRegion, 1);
     hwaddr kernel_base, initrd_base, cmdline_base = 0;
     long kernel_size, initrd_size;
     UNINHostState *uninorth_pci;
@@ -152,8 +152,7 @@ static void ppc_core99_init(MachineState *machine)
     }
 
     /* allocate RAM */
-    memory_region_allocate_system_memory(ram, NULL, "ppc_core99.ram", ram_size);
-    memory_region_add_subregion(get_system_memory(), 0, ram);
+    memory_region_add_subregion(get_system_memory(), 0, machine->ram);
 
     /* allocate and load BIOS */
     memory_region_init_ram(bios, NULL, "ppc_core99.bios", BIOS_SIZE,
@@ -586,6 +585,7 @@ static void core99_machine_class_init(ObjectClass *oc, void *data)
 #else
     mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("7400_v2.9");
 #endif
+    mc->default_ram_id = "ppc_core99.ram";
     mc->ignore_boot_device_suffixes = true;
     fwc->get_dev_path = core99_fw_dev_path;
 }
-- 
2.7.4