Re: [PATCH v3 1/2] cpu: Introduce cpu_class_set_parent_reset()

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 12/16/19 4:01 PM, Greg Kurz wrote:
> Similarly to what we already do with qdev, use a helper to overload the
> reset QOM methods of the parent in children classes, for clarity.
> 
> Signed-off-by: Greg Kurz <groug@kaod.org>
> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
> Reviewed-by: Cornelia Huck <cohuck@redhat.com>
> Acked-by: David Hildenbrand <david@redhat.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---
>   hw/core/cpu.c         |    8 ++++++++
>   include/hw/core/cpu.h |    4 ++++
>   2 files changed, 12 insertions(+)
> 
> diff --git a/hw/core/cpu.c b/hw/core/cpu.c
> index db1a03c6bbb3..fde5fd395b10 100644
> --- a/hw/core/cpu.c
> +++ b/hw/core/cpu.c
> @@ -239,6 +239,14 @@ void cpu_dump_statistics(CPUState *cpu, int flags)
>       }
>   }
>   
> +void cpu_class_set_parent_reset(CPUClass *cc,
> +                                void (*child_reset)(CPUState *cpu),
> +                                void (**parent_reset)(CPUState *cpu))
> +{
> +    *parent_reset = cc->reset;
> +    cc->reset = child_reset;
> +}
> +
>   void cpu_reset(CPUState *cpu)
>   {
>       CPUClass *klass = CPU_GET_CLASS(cpu);
> diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h
> index 77c6f0529903..73e9a869a41c 100644
> --- a/include/hw/core/cpu.h
> +++ b/include/hw/core/cpu.h
> @@ -1135,6 +1135,10 @@ void cpu_exec_unrealizefn(CPUState *cpu);
>    */
>   bool target_words_bigendian(void);
>   
> +void cpu_class_set_parent_reset(CPUClass *cc,
> +                                void (*child_reset)(CPUState *cpu),
> +                                void (**parent_reset)(CPUState *cpu));
> +
>   #ifdef NEED_CPU_H
>   
>   #ifdef CONFIG_SOFTMMU
>