| Message ID | 1430319127-25907-10-git-send-email-eric.auger@linaro.org |
|---|---|
| State | New |
| Headers | show |
On Wed, Apr 29, 2015 at 7:52 AM, Eric Auger <eric.auger@linaro.org> 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@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> > > --- > 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 > >
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 {
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@linaro.org> --- 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(+)