Re: [Qemu-devel] [PATCH v2 17/26] fwcfg: use realize for fwcfg

["Andreas Färber" <afaerber@suse.de>]

Am 01.07.2013 12:18, schrieb Hu Tao:
> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
> ---
>  hw/nvram/fw_cfg.c | 26 ++++++++++++++++----------
>  1 file changed, 16 insertions(+), 10 deletions(-)
> 
> diff --git a/hw/nvram/fw_cfg.c b/hw/nvram/fw_cfg.c
> index c8722c2..656ffcc 100644
> --- a/hw/nvram/fw_cfg.c
> +++ b/hw/nvram/fw_cfg.c
> @@ -523,31 +523,37 @@ FWCfgState *fw_cfg_init(uint32_t ctl_port, uint32_t data_port,
>      return s;
>  }
>  
> -static int fw_cfg_init1(SysBusDevice *dev)
> +static void fw_cfg_initfn(Object *obj)
>  {
> -    FWCfgState *s = FW_CFG(dev);
> +    FWCfgState *s = FW_CFG(obj);
>  
>      memory_region_init_io(&s->ctl_iomem, &fw_cfg_ctl_mem_ops, s,
>                            "fwcfg.ctl", FW_CFG_SIZE);
> -    sysbus_init_mmio(dev, &s->ctl_iomem);
>      memory_region_init_io(&s->data_iomem, &fw_cfg_data_mem_ops, s,
>                            "fwcfg.data", FW_CFG_DATA_SIZE);
> -    sysbus_init_mmio(dev, &s->data_iomem);
>      /* In case ctl and data overlap: */
>      memory_region_init_io(&s->comb_iomem, &fw_cfg_comb_mem_ops, s,
>                            "fwcfg", FW_CFG_SIZE);
> +}

There's no reason not to have sysbus_init_mmio() in instance_init,
changed that.

Andreas

> +
> +static void fw_cfg_realize(DeviceState *dev, Error **errp)
> +{
> +    FWCfgState *s = FW_CFG(dev);
> +    SysBusDevice *b = SYS_BUS_DEVICE(dev);
> +
> +    sysbus_init_mmio(b, &s->ctl_iomem);
> +    sysbus_init_mmio(b, &s->data_iomem);
>  
>      if (s->ctl_iobase + 1 == s->data_iobase) {
> -        sysbus_add_io(dev, s->ctl_iobase, &s->comb_iomem);
> +        sysbus_add_io(b, s->ctl_iobase, &s->comb_iomem);
>      } else {
>          if (s->ctl_iobase) {
> -            sysbus_add_io(dev, s->ctl_iobase, &s->ctl_iomem);
> +            sysbus_add_io(b, s->ctl_iobase, &s->ctl_iomem);
>          }
>          if (s->data_iobase) {
> -            sysbus_add_io(dev, s->data_iobase, &s->data_iomem);
> +            sysbus_add_io(b, s->data_iobase, &s->data_iomem);
>          }
>      }
> -    return 0;
>  }
>  
>  static Property fw_cfg_properties[] = {
> @@ -564,9 +570,8 @@ FWCfgState *fw_cfg_find(void)
>  static void fw_cfg_class_init(ObjectClass *klass, void *data)
>  {
>      DeviceClass *dc = DEVICE_CLASS(klass);
> -    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
>  
> -    k->init = fw_cfg_init1;
> +    dc->realize = fw_cfg_realize;
>      dc->no_user = 1;
>      dc->reset = fw_cfg_reset;
>      dc->vmsd = &vmstate_fw_cfg;
> @@ -577,6 +582,7 @@ static const TypeInfo fw_cfg_info = {
>      .name          = TYPE_FW_CFG,
>      .parent        = TYPE_SYS_BUS_DEVICE,
>      .instance_size = sizeof(FWCfgState),
> +    .instance_init = fw_cfg_initfn,
>      .class_init    = fw_cfg_class_init,
>  };
>  
> 


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