null-machine: use memdev for RAM
commitc74e71908d28a9272f0c5cd7a0327d6bc3d6cba9
authorIgor Mammedov <imammedo@redhat.com>
Wed, 19 Feb 2020 16:09:13 +0000 (19 11:09 -0500)
committerPatchew Importer <importer@patchew.org>
Wed, 19 Feb 2020 16:49:57 +0000 (19 16:49 +0000)
treea2ce79dbc89aa44ee056c9465b5bc161c73ad863
parent3a12fc61af5cd086d78044584f25a39d02c05351
null-machine: use memdev for RAM

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>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200219160953.13771-40-imammedo@redhat.com>
hw/core/null-machine.c