Re: [PATCH] ppc: function to setup latest class options

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

On 2/7/20 7:48 AM, Michael S. Tsirkin wrote:
> We are going to add more init for the latest machine, so move the setup
> to a function so we don't have to change the DEFINE_SPAPR_MACHINE macro
> each time.
> 
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> ---
>   hw/ppc/spapr.c | 9 +++++++--
>   1 file changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index 02cf53fc5b..4cf2a992a5 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -4428,6 +4428,12 @@ static const TypeInfo spapr_machine_info = {
>       },
>   };
>   
> +static void spapr_machine_latest_class_options(MachineClass *mc)
> +{
> +    mc->alias = "pseries";
> +    mc->is_default = 1;

But we can have only 1 default per QEMU binary... How PPC manage having 
multiple defaults? The first or last listed is choosen as default?

> +}
> +
>   #define DEFINE_SPAPR_MACHINE(suffix, verstr, latest)                 \
>       static void spapr_machine_##suffix##_class_init(ObjectClass *oc, \
>                                                       void *data)      \
> @@ -4435,8 +4441,7 @@ static const TypeInfo spapr_machine_info = {
>           MachineClass *mc = MACHINE_CLASS(oc);                        \
>           spapr_machine_##suffix##_class_options(mc);                  \
>           if (latest) {                                                \
> -            mc->alias = "pseries";                                   \
> -            mc->is_default = 1;                                      \
> +            spapr_machine_latest_class_options(mc);                  \
>           }                                                            \
>       }                                                                \
>       static const TypeInfo spapr_machine_##suffix##_info = {          \
>