On Wed, Apr 29, 2015 at 7:52 AM, Eric Auger <eric.auger@xxxxxxxxxx> wrote:
> Add a new connect_irq_notifier notifier in the SysBusDeviceClass. This
> notifier, if populated, is called after sysbus_connect_irq.
>
> This mechanism is used to setup VFIO signaling once VFIO platform
> devices get attached to their platform bus, on a machine init done
> notifier.
>
> Signed-off-by: Eric Auger <eric.auger@xxxxxxxxxx>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xxxxxxxxxx>
>
> ---
> v2 -> v3:
> - rename irq_routing_notifier into connect_irq_notifier
>
> v1 -> v2:
> - duly put the notifier in the class and not in the device
> ---
> hw/core/sysbus.c | 6 ++++++
> include/hw/sysbus.h | 1 +
> 2 files changed, 7 insertions(+)
>
> diff --git a/hw/core/sysbus.c b/hw/core/sysbus.c
> index b53c351..2d22aec 100644
> --- a/hw/core/sysbus.c
> +++ b/hw/core/sysbus.c
> @@ -109,7 +109,13 @@ qemu_irq sysbus_get_connected_irq(SysBusDevice *dev, int n)
>
> void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq)
> {
> + SysBusDeviceClass *sbd = SYS_BUS_DEVICE_GET_CLASS(dev);
> +
> qdev_connect_gpio_out_named(DEVICE(dev), SYSBUS_DEVICE_GPIO_IRQ, n, irq);
> +
> + if (sbd->connect_irq_notifier) {
> + sbd->connect_irq_notifier(dev, irq);
> + }
> }
>
> /* Check whether an MMIO region exists */
> diff --git a/include/hw/sysbus.h b/include/hw/sysbus.h
> index d1f3f00..e80b26d 100644
> --- a/include/hw/sysbus.h
> +++ b/include/hw/sysbus.h
> @@ -41,6 +41,7 @@ typedef struct SysBusDeviceClass {
> /*< public >*/
>
> int (*init)(SysBusDevice *dev);
> + void (*connect_irq_notifier)(SysBusDevice *dev, qemu_irq irq);
> } SysBusDeviceClass;
>
> struct SysBusDevice {
> --
> 1.8.3.2
>
>
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