Re: [PATCH v2 3/5] hw/loongarch: Add compat machine for 9.0

[gaosong]

在 2024/2/27 10:30, Bibo Mao 写道:
> Since migration test case requires compat machine type support,
> compat machine is added for qemu 9.0 here.
>
> Signed-off-by: Bibo Mao <maobibo@loongson.cn>
> ---
>   hw/loongarch/virt.c | 60 +++++++++++++++++++++++++++++++++++----------
>   1 file changed, 47 insertions(+), 13 deletions(-)
Reviewed-by: Song Gao <gaosong@loongson.cn>

Thanks.
Song Gao
> diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c
> index 3bc35c58c9..f37f642ede 100644
> --- a/hw/loongarch/virt.c
> +++ b/hw/loongarch/virt.c
> @@ -46,6 +46,32 @@
>   #include "hw/block/flash.h"
>   #include "qemu/error-report.h"
>   
> +#define DEFINE_VIRT_MACHINE_LATEST(major, minor, latest) \
> +    static void virt_##major##_##minor##_class_init(ObjectClass *oc, \
> +                                                    void *data) \
> +    { \
> +        MachineClass *mc = MACHINE_CLASS(oc); \
> +        virt_machine_##major##_##minor##_options(mc); \
> +        mc->desc = "QEMU " # major "." # minor " ARM Virtual Machine"; \
> +        if (latest) { \
> +            mc->alias = "virt"; \
> +        } \
> +    } \
> +    static const TypeInfo machvirt_##major##_##minor##_info = { \
> +        .name = MACHINE_TYPE_NAME("virt-" # major "." # minor), \
> +        .parent = TYPE_VIRT_MACHINE, \
> +        .class_init = virt_##major##_##minor##_class_init, \
> +    }; \
> +    static void machvirt_machine_##major##_##minor##_init(void) \
> +    { \
> +        type_register_static(&machvirt_##major##_##minor##_info); \
> +    } \
> +    type_init(machvirt_machine_##major##_##minor##_init);
> +
> +#define DEFINE_VIRT_MACHINE_AS_LATEST(major, minor) \
> +    DEFINE_VIRT_MACHINE_LATEST(major, minor, true)
> +#define DEFINE_VIRT_MACHINE(major, minor) \
> +    DEFINE_VIRT_MACHINE_LATEST(major, minor, false)
>   
>   struct loaderparams {
>       uint64_t ram_size;
> @@ -1200,18 +1226,26 @@ static void virt_class_init(ObjectClass *oc, void *data)
>   #endif
>   }
>   
> -static const TypeInfo virt_machine_types[] = {
> -    {
> -        .name           = TYPE_VIRT_MACHINE,
> -        .parent         = TYPE_MACHINE,
> -        .instance_size  = sizeof(VirtMachineState),
> -        .class_init     = virt_class_init,
> -        .instance_init = virt_machine_initfn,
> -        .interfaces = (InterfaceInfo[]) {
> -         { TYPE_HOTPLUG_HANDLER },
> -         { }
> -        },
> -    }
> +static const TypeInfo virt_machine_info = {
> +    .name           = TYPE_VIRT_MACHINE,
> +    .parent         = TYPE_MACHINE,
> +    .abstract       = true,
> +    .instance_size  = sizeof(VirtMachineState),
> +    .class_init     = virt_class_init,
> +    .instance_init = virt_machine_initfn,
> +    .interfaces = (InterfaceInfo[]) {
> +    { TYPE_HOTPLUG_HANDLER },
> +    { }
> +    },
>   };
>   
> -DEFINE_TYPES(virt_machine_types)
> +static void machvirt_machine_init(void)
> +{
> +    type_register_static(&virt_machine_info);
> +}
> +type_init(machvirt_machine_init);
> +
> +static void virt_machine_9_0_options(MachineClass *mc)
> +{
> +}
> +DEFINE_VIRT_MACHINE_AS_LATEST(9, 0)