Re: [Qemu-devel] [PATCH RFC 04/16] hw/core/machine: Introduce pre_init

[David Gibson]

On Fri, Jun 10, 2016 at 07:40:15PM +0200, Andrew Jones wrote:
> From: Igor Mammedov <address@hidden>
> 
> Signed-off-by: Igor Mammedov <address@hidden>
> Signed-off-by: Andrew Jones <address@hidden>

I think this needs some kind of rationale.

Since with this patch it is called immediately before ->init, I'm not
really seeing the point of this.

> ---
>  hw/core/machine.c   | 6 ++++++
>  include/hw/boards.h | 1 +
>  vl.c                | 1 +
>  3 files changed, 8 insertions(+)
> 
> diff --git a/hw/core/machine.c b/hw/core/machine.c
> index ccdd5fa3e7728..3dce9020e510a 100644
> --- a/hw/core/machine.c
> +++ b/hw/core/machine.c
> @@ -368,10 +368,16 @@ static void machine_init_notify(Notifier *notifier, 
> void *data)
>      foreach_dynamic_sysbus_device(error_on_sysbus_device, NULL);
>  }
>  
> +static void machine_pre_init(MachineState *ms)
> +{
> +}
> +
>  static void machine_class_init(ObjectClass *oc, void *data)
>  {
>      MachineClass *mc = MACHINE_CLASS(oc);
>  
> +    mc->pre_init = machine_pre_init;
> +
>      /* Default 128 MB as guest ram size */
>      mc->default_ram_size = 128 * M_BYTE;
>      mc->rom_file_has_mr = true;
> diff --git a/include/hw/boards.h b/include/hw/boards.h
> index d268bd00a9f7d..4e8dc68b07a24 100644
> --- a/include/hw/boards.h
> +++ b/include/hw/boards.h
> @@ -92,6 +92,7 @@ struct MachineClass {
>      const char *alias;
>      const char *desc;
>  
> +    void (*pre_init)(MachineState *state);
>      void (*init)(MachineState *state);
>      void (*reset)(void);
>      void (*hot_add_cpu)(const int64_t id, Error **errp);
> diff --git a/vl.c b/vl.c
> index 8d482cb1bf020..4849dd465d667 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -4500,6 +4500,7 @@ int main(int argc, char **argv, char **envp)
>      current_machine->boot_order = boot_order;
>      current_machine->cpu_model = cpu_model;
>  
> +    machine_class->pre_init(current_machine);
>      machine_class->init(current_machine);
>  
>      realtime_init();

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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