Re: [Qemu-devel] [PATCH 06/15] hw/pci-host/bonito: Use DeviceState::realize rather than SysBusDevice::init

["Philippe Mathieu-Daudé" <f4bug@amsat.org>]

On 10/2/18 12:09 AM, Philippe Mathieu-Daudé wrote:
> Move from the legacy SysBusDevice::init method to using DeviceState::realize.
> 
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> ---
>  hw/pci-host/bonito.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/hw/pci-host/bonito.c b/hw/pci-host/bonito.c
> index 9868e2eccc..03d1ec33e3 100644
> --- a/hw/pci-host/bonito.c
> +++ b/hw/pci-host/bonito.c
> @@ -595,7 +595,7 @@ static const VMStateDescription vmstate_bonito = {
>      }
>  };
>  
> -static int bonito_pcihost_initfn(SysBusDevice *dev)
> +static void bonito_pcihost_realize(PCIDevice *dev, Error **errp)

This patch is incorrect, see:
https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg00378.html

>  {
>      PCIHostState *phb = PCI_HOST_BRIDGE(dev);
>  
> @@ -603,8 +603,6 @@ static int bonito_pcihost_initfn(SysBusDevice *dev)
>                                       pci_bonito_set_irq, pci_bonito_map_irq,
>                                       dev, get_system_memory(), get_system_io(),
>                                       0x28, 32, TYPE_PCI_BUS);
> -
> -    return 0;
>  }
>  
>  static void bonito_realize(PCIDevice *dev, Error **errp)
> @@ -684,7 +682,6 @@ PCIBus *bonito_init(qemu_irq *pic)
>      pcihost->pic = pic;
>      qdev_init_nofail(dev);
>  
> -    /* set the pcihost pointer before bonito_initfn is called */
>      d = pci_create(phb->bus, PCI_DEVFN(0, 0), TYPE_PCI_BONITO);
>      s = PCI_BONITO(d);
>      s->pcihost = pcihost;
> @@ -726,9 +723,9 @@ static const TypeInfo bonito_info = {
>  
>  static void bonito_pcihost_class_init(ObjectClass *klass, void *data)
>  {
> -    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
> +    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
>  
> -    k->init = bonito_pcihost_initfn;
> +    k->realize = bonito_pcihost_realize;
>  }
>  
>  static const TypeInfo bonito_pcihost_info = {
>