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Re: [Qemu-devel] [PATCH v2 5/5] pci: Validate interfaces on base_class_i


From: David Gibson
Subject: Re: [Qemu-devel] [PATCH v2 5/5] pci: Validate interfaces on base_class_init
Date: Thu, 28 Sep 2017 14:13:08 +1000
User-agent: Mutt/1.9.0 (2017-09-02)

On Wed, Sep 27, 2017 at 04:56:35PM -0300, Eduardo Habkost wrote:
> Make sure we don't forget to add the Conventional PCI or PCI
> Express interface names on PCI device classes in the future.
> 
> Signed-off-by: Eduardo Habkost <address@hidden>

Revieed-by: David Gibson <address@hidden>

> ---
> Changes v1 -> v2:
> * s/legacy/conventional/
>   * Suggested-by: Alex Williamson <address@hidden>
> ---
>  hw/pci/pci.c | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/hw/pci/pci.c b/hw/pci/pci.c
> index 1b08e18205..5ed3c8dca4 100644
> --- a/hw/pci/pci.c
> +++ b/hw/pci/pci.c
> @@ -2547,6 +2547,17 @@ static void pci_device_class_init(ObjectClass *klass, 
> void *data)
>      pc->realize = pci_default_realize;
>  }
>  
> +static void pci_device_class_base_init(ObjectClass *klass, void *data)
> +{
> +    if (!object_class_is_abstract(klass)) {
> +        ObjectClass *conventional =
> +            object_class_dynamic_cast(klass, 
> INTERFACE_CONVENTIONAL_PCI_DEVICE);
> +        ObjectClass *pcie =
> +            object_class_dynamic_cast(klass, INTERFACE_PCIE_DEVICE);
> +        assert(conventional || pcie);
> +    }
> +}
> +
>  AddressSpace *pci_device_iommu_address_space(PCIDevice *dev)
>  {
>      PCIBus *bus = PCI_BUS(dev->bus);
> @@ -2671,6 +2682,7 @@ static const TypeInfo pci_device_type_info = {
>      .abstract = true,
>      .class_size = sizeof(PCIDeviceClass),
>      .class_init = pci_device_class_init,
> +    .class_base_init = pci_device_class_base_init,
>  };
>  
>  static void pci_register_types(void)

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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