Re: [Qemu-devel] [PATCH v3.2 11/31] numa: introduce memory_region_allocate_system_memory

["Michael S. Tsirkin" <mst@redhat.com>]

On Wed, May 14, 2014 at 05:43:15PM +0800, Hu Tao wrote:
> From: Paolo Bonzini <pbonzini@redhat.com>
> 
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
> ---
>  hw/i386/pc.c            | 4 +---
>  include/hw/boards.h     | 6 +++++-
>  include/sysemu/sysemu.h | 1 +
>  numa.c                  | 9 +++++++++
>  4 files changed, 16 insertions(+), 4 deletions(-)
> 
> diff --git a/hw/i386/pc.c b/hw/i386/pc.c
> index 3673da8..3778d41 100644
> --- a/hw/i386/pc.c
> +++ b/hw/i386/pc.c
> @@ -1210,9 +1210,7 @@ FWCfgState *pc_memory_init(QEMUMachineInitArgs *args,
>       * with older qemus that used qemu_ram_alloc().
>       */
>      ram = g_malloc(sizeof(*ram));
> -    memory_region_init_ram(ram, NULL, "pc.ram",
> -                           below_4g_mem_size + above_4g_mem_size);
> -    vmstate_register_ram_global(ram);
> +    memory_region_allocate_system_memory(ram, NULL, "pc.ram", args->ram_size);
>      *ram_memory = ram;
>      ram_below_4g = g_malloc(sizeof(*ram_below_4g));
>      memory_region_init_alias(ram_below_4g, NULL, "ram-below-4g", ram,

Better keep below_4g_mem_size + above_4g_mem_size around, this way this
can be a stand-alone patch.

> diff --git a/include/hw/boards.h b/include/hw/boards.h
> index 4345bd0..3f1c17d 100644
> --- a/include/hw/boards.h
> +++ b/include/hw/boards.h
> @@ -50,9 +50,13 @@ struct QEMUMachine {
>      const char *hw_version;
>  };
>  
> -#define TYPE_MACHINE_SUFFIX "-machine"
> +void memory_region_allocate_system_memory(MemoryRegion *mr, Object *owner,
> +                                          const char *name,
> +                                          uint64_t ram_size);
> +
>  int qemu_register_machine(QEMUMachine *m);
>  
> +#define TYPE_MACHINE_SUFFIX "-machine"
>  #define TYPE_MACHINE "machine"
>  #undef MACHINE  /* BSD defines it and QEMU does not use it */
>  #define MACHINE(obj) \
> diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
> index 423d49e..caf88dd 100644
> --- a/include/sysemu/sysemu.h
> +++ b/include/sysemu/sysemu.h
> @@ -10,6 +10,7 @@
>  #include "qemu/notify.h"
>  #include "qemu/main-loop.h"
>  #include "qemu/bitmap.h"
> +#include "qom/object.h"
>  
>  /* vl.c */
>  
> diff --git a/numa.c b/numa.c
> index 439df87..bcd7b04 100644
> --- a/numa.c
> +++ b/numa.c
> @@ -33,6 +33,7 @@
>  #include "qapi/opts-visitor.h"
>  #include "qapi/dealloc-visitor.h"
>  #include "qapi/qmp/qerror.h"
> +#include "hw/boards.h"
>  
>  QemuOptsList qemu_numa_opts = {
>      .name = "numa",
> @@ -194,3 +195,11 @@ void set_numa_modes(void)
>          }
>      }
>  }
> +
> +void memory_region_allocate_system_memory(MemoryRegion *mr, Object *owner,
> +                                          const char *name,
> +                                          uint64_t ram_size)
> +{
> +    memory_region_init_ram(mr, owner, name, ram_size);
> +    vmstate_register_ram_global(mr);
> +}
> -- 
> 1.8.5.2.229.g4448466
>