[PATCH 07/21] hw: Drop QOM ownership on memory_region_allocate_system_memory() calls

[Philippe Mathieu-Daudé]

All the memory_region_allocate_system_memory() calls are in the
board_init() code.  From the 58 calls in the repository, only
4 set the 'owner' parameter. It is obvious we want the Machine
to be the owner of the RAM, so we want to use OBJECT(machine)
as owner. We can simplify a bit by passing MachineState to
memory_region_allocate_system_memory(). In preparation of this
refactor, first drop the 'owner' argument from these 4 uses.

  $ git grep memory_region_allocate_system_memory hw/ | wc -l
  58

Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
---
 hw/alpha/typhoon.c | 2 +-
 hw/arm/raspi.c     | 2 +-
 hw/hppa/machine.c  | 2 +-
 hw/sparc/sun4m.c   | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/hw/alpha/typhoon.c b/hw/alpha/typhoon.c
index 179e1f7658..8489ec335c 100644
--- a/hw/alpha/typhoon.c
+++ b/hw/alpha/typhoon.c
@@ -851,7 +851,7 @@ PCIBus *typhoon_init(ram_addr_t ram_size, ISABus **isa_bus,
 
     /* Main memory region, 0x00.0000.0000.  Real hardware supports 32GB,
        but the address space hole reserved at this point is 8TB.  */
-    memory_region_allocate_system_memory(&s->ram_region, OBJECT(s), "ram",
+    memory_region_allocate_system_memory(&s->ram_region, NULL, "ram",
                                          ram_size);
     memory_region_add_subregion(addr_space, 0, &s->ram_region);
 
diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c
index 615d755879..f76b6eaad3 100644
--- a/hw/arm/raspi.c
+++ b/hw/arm/raspi.c
@@ -182,7 +182,7 @@ static void raspi_init(MachineState *machine, int version)
                             &error_abort, NULL);
 
     /* Allocate and map RAM */
-    memory_region_allocate_system_memory(&s->ram, OBJECT(machine), "ram",
+    memory_region_allocate_system_memory(&s->ram, NULL, "ram",
                                          machine->ram_size);
     /* FIXME: Remove when we have custom CPU address space support */
     memory_region_add_subregion_overlap(get_system_memory(), 0, &s->ram, 0);
diff --git a/hw/hppa/machine.c b/hw/hppa/machine.c
index 953d454f48..dbe1ff0fe5 100644
--- a/hw/hppa/machine.c
+++ b/hw/hppa/machine.c
@@ -96,7 +96,7 @@ static void machine_hppa_init(MachineState *machine)
 
     /* Main memory region. */
     ram_region = g_new(MemoryRegion, 1);
-    memory_region_allocate_system_memory(ram_region, OBJECT(machine),
+    memory_region_allocate_system_memory(ram_region, NULL,
                                          "ram", ram_size);
     memory_region_add_subregion(addr_space, 0, ram_region);
 
diff --git a/hw/sparc/sun4m.c b/hw/sparc/sun4m.c
index 6c5a17a020..0bb7524655 100644
--- a/hw/sparc/sun4m.c
+++ b/hw/sparc/sun4m.c
@@ -788,7 +788,7 @@ static void ram_realize(DeviceState *dev, Error **errp)
     RamDevice *d = SUN4M_RAM(dev);
     SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 
-    memory_region_allocate_system_memory(&d->ram, OBJECT(d), "sun4m.ram",
+    memory_region_allocate_system_memory(&d->ram, NULL, "sun4m.ram",
                                          d->size);
     sysbus_init_mmio(sbd, &d->ram);
 }
-- 
2.21.0