Re: [Qemu-devel] [PATCH 2/4] ppc/pnv: introduce a CPU machine_data

[Greg Kurz]

On Thu, 17 Jan 2019 08:53:25 +0100
Cédric Le Goater <address@hidden> wrote:

> Include the interrupt presenter under the machine_data as we plan to
> remove it from under PowerPCCPU
> 
> Signed-off-by: Cédric Le Goater <address@hidden>
> ---

Reviewed-by: Greg Kurz <address@hidden>

>  include/hw/ppc/pnv_core.h |  9 +++++++++
>  hw/ppc/pnv.c              |  7 ++++---
>  hw/ppc/pnv_core.c         | 12 +++++++++++-
>  3 files changed, 24 insertions(+), 4 deletions(-)
> 
> diff --git a/include/hw/ppc/pnv_core.h b/include/hw/ppc/pnv_core.h
> index 447ae761f7ae..9961ea3a92cd 100644
> --- a/include/hw/ppc/pnv_core.h
> +++ b/include/hw/ppc/pnv_core.h
> @@ -47,4 +47,13 @@ typedef struct PnvCoreClass {
>  #define PNV_CORE_TYPE_SUFFIX "-" TYPE_PNV_CORE
>  #define PNV_CORE_TYPE_NAME(cpu_model) cpu_model PNV_CORE_TYPE_SUFFIX
>  
> +typedef struct PnvCPUState {
> +    struct ICPState *icp;
> +} PnvCPUState;
> +
> +static inline PnvCPUState *pnv_cpu_state(PowerPCCPU *cpu)
> +{
> +    return (PnvCPUState *)cpu->machine_data;
> +}
> +
>  #endif /* _PPC_PNV_CORE_H */
> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> index d84acef55b69..da540860a2b0 100644
> --- a/hw/ppc/pnv.c
> +++ b/hw/ppc/pnv.c
> @@ -673,6 +673,7 @@ static void pnv_chip_power8_intc_create(PnvChip *chip, 
> PowerPCCPU *cpu,
>  {
>      Error *local_err = NULL;
>      Object *obj;
> +    PnvCPUState *pnv_cpu = pnv_cpu_state(cpu);
>  
>      obj = icp_create(OBJECT(cpu), TYPE_PNV_ICP, 
> XICS_FABRIC(qdev_get_machine()),
>                       &local_err);
> @@ -681,7 +682,7 @@ static void pnv_chip_power8_intc_create(PnvChip *chip, 
> PowerPCCPU *cpu,
>          return;
>      }
>  
> -    cpu->icp = ICP(obj);
> +    pnv_cpu->icp = ICP(obj);
>  }
>  
>  /*
> @@ -1099,7 +1100,7 @@ static ICPState *pnv_icp_get(XICSFabric *xi, int pir)
>  {
>      PowerPCCPU *cpu = ppc_get_vcpu_by_pir(pir);
>  
> -    return cpu ? cpu->icp : NULL;
> +    return cpu ? pnv_cpu_state(cpu)->icp : NULL;
>  }
>  
>  static void pnv_pic_print_info(InterruptStatsProvider *obj,
> @@ -1112,7 +1113,7 @@ static void pnv_pic_print_info(InterruptStatsProvider 
> *obj,
>      CPU_FOREACH(cs) {
>          PowerPCCPU *cpu = POWERPC_CPU(cs);
>  
> -        icp_pic_print_info(cpu->icp, mon);
> +        icp_pic_print_info(pnv_cpu_state(cpu)->icp, mon);
>      }
>  
>      for (i = 0; i < pnv->num_chips; i++) {
> diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
> index b98f277f1e02..7c806da720c6 100644
> --- a/hw/ppc/pnv_core.c
> +++ b/hw/ppc/pnv_core.c
> @@ -155,7 +155,10 @@ static void pnv_core_realize(DeviceState *dev, Error 
> **errp)
>  
>      pc->threads = g_new(PowerPCCPU *, cc->nr_threads);
>      for (i = 0; i < cc->nr_threads; i++) {
> +        PowerPCCPU *cpu;
> +
>          obj = object_new(typename);
> +        cpu = POWERPC_CPU(obj);
>  
>          pc->threads[i] = POWERPC_CPU(obj);
>  
> @@ -163,6 +166,9 @@ static void pnv_core_realize(DeviceState *dev, Error 
> **errp)
>          object_property_add_child(OBJECT(pc), name, obj, &error_abort);
>          object_property_add_alias(obj, "core-pir", OBJECT(pc),
>                                    "pir", &error_abort);
> +
> +        cpu->machine_data = g_new0(PnvCPUState, 1);
> +
>          object_unref(obj);
>      }
>  
> @@ -189,9 +195,13 @@ err:
>  
>  static void pnv_unrealize_vcpu(PowerPCCPU *cpu)
>  {
> +    PnvCPUState *pnv_cpu = pnv_cpu_state(cpu);
> +
>      qemu_unregister_reset(pnv_cpu_reset, cpu);
> -    object_unparent(OBJECT(cpu->icp));
> +    object_unparent(OBJECT(pnv_cpu_state(cpu)->icp));
>      cpu_remove_sync(CPU(cpu));
> +    cpu->machine_data = NULL;
> +    g_free(pnv_cpu);
>      object_unparent(OBJECT(cpu));
>  }
>