Re: [Qemu-devel] [PATCH] PPC: e500: convert SysBus init method to a realize method

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

On 01/10/2018 17:04, Cédric Le Goater wrote:
> Signed-off-by: Cédric Le Goater <clg@kaod.org>

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

> ---
>  hw/pci-host/ppce500.c | 14 ++++++--------
>  1 file changed, 6 insertions(+), 8 deletions(-)
> 
> diff --git a/hw/pci-host/ppce500.c b/hw/pci-host/ppce500.c
> index eb75e080fc10..b8f8c112e662 100644
> --- a/hw/pci-host/ppce500.c
> +++ b/hw/pci-host/ppce500.c
> @@ -436,8 +436,9 @@ static AddressSpace *e500_pcihost_set_iommu(PCIBus *bus, void *opaque,
>      return &s->bm_as;
>  }
>  
> -static int e500_pcihost_initfn(SysBusDevice *dev)
> +static void e500_pcihost_realize(DeviceState *dev, Error **errp)
>  {
> +    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
>      PCIHostState *h;
>      PPCE500PCIState *s;
>      PCIBus *b;
> @@ -447,7 +448,7 @@ static int e500_pcihost_initfn(SysBusDevice *dev)
>      s = PPC_E500_PCI_HOST_BRIDGE(dev);
>  
>      for (i = 0; i < ARRAY_SIZE(s->irq); i++) {
> -        sysbus_init_irq(dev, &s->irq[i]);
> +        sysbus_init_irq(sbd, &s->irq[i]);
>      }
>  
>      for (i = 0; i < PCI_NUM_PINS; i++) {
> @@ -460,7 +461,7 @@ static int e500_pcihost_initfn(SysBusDevice *dev)
>      /* PIO lives at the bottom of our bus space */
>      memory_region_add_subregion_overlap(&s->busmem, 0, &s->pio, -2);
>  
> -    b = pci_register_root_bus(DEVICE(dev), NULL, mpc85xx_pci_set_irq,
> +    b = pci_register_root_bus(dev, NULL, mpc85xx_pci_set_irq,
>                                mpc85xx_pci_map_irq, s, &s->busmem, &s->pio,
>                                PCI_DEVFN(s->first_slot, 0), 4, TYPE_PCI_BUS);
>      h->bus = b;
> @@ -483,10 +484,8 @@ static int e500_pcihost_initfn(SysBusDevice *dev)
>      memory_region_add_subregion(&s->container, PCIE500_CFGADDR, &h->conf_mem);
>      memory_region_add_subregion(&s->container, PCIE500_CFGDATA, &h->data_mem);
>      memory_region_add_subregion(&s->container, PCIE500_REG_BASE, &s->iomem);
> -    sysbus_init_mmio(dev, &s->container);
> +    sysbus_init_mmio(sbd, &s->container);
>      pci_bus_set_route_irq_fn(b, e500_route_intx_pin_to_irq);
> -
> -    return 0;
>  }
>  
>  static void e500_host_bridge_class_init(ObjectClass *klass, void *data)
> @@ -526,9 +525,8 @@ static Property pcihost_properties[] = {
>  static void e500_pcihost_class_init(ObjectClass *klass, void *data)
>  {
>      DeviceClass *dc = DEVICE_CLASS(klass);
> -    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
>  
> -    k->init = e500_pcihost_initfn;
> +    dc->realize = e500_pcihost_realize;
>      set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
>      dc->props = pcihost_properties;
>      dc->vmsd = &vmstate_ppce500_pci;
>