Message ID | 20210706072030.32365-7-lulu@redhat.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | vhost-vdpa: add support for configure interrupt | expand |
在 2021/7/6 下午3:20, Cindy Lu 写道: > Add configure interrupt support for virtio-mmio bus. This > interrupt will working while backend is vhost-vdpa > > Signed-off-by: Cindy Lu <lulu@redhat.com> > --- > hw/virtio/virtio-mmio.c | 26 ++++++++++++++++++++++++++ > 1 file changed, 26 insertions(+) > > diff --git a/hw/virtio/virtio-mmio.c b/hw/virtio/virtio-mmio.c > index 342c918ea7..6c786db071 100644 > --- a/hw/virtio/virtio-mmio.c > +++ b/hw/virtio/virtio-mmio.c > @@ -670,7 +670,29 @@ static int virtio_mmio_set_guest_notifier(DeviceState *d, int n, bool assign, > > return 0; > } > +static int virtio_mmio_set_config_notifier(DeviceState *d, bool assign) > +{ We had similar issue as previous patch. We need use "virtio_mmio_set_config_guest_notifier()." Thanks > + VirtIOMMIOProxy *proxy = VIRTIO_MMIO(d); > + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); > + VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); > > + EventNotifier *notifier = virtio_get_config_notifier(vdev); > + int r = 0; > + if (assign) { > + r = event_notifier_init(notifier, 0); > + if (r < 0) { > + return r; > + } > + virtio_set_config_notifier_fd_handler(vdev, true, false); > + } else { > + virtio_set_config_notifier_fd_handler(vdev, false, false); > + event_notifier_cleanup(notifier); > + } > + if (vdc->guest_notifier_mask && vdev->use_guest_notifier_mask) { > + vdc->guest_notifier_mask(vdev, VIRTIO_CONFIG_IRQ_IDX, !assign); > + } > + return r; > +} > static int virtio_mmio_set_guest_notifiers(DeviceState *d, int nvqs, > bool assign) > { > @@ -692,6 +714,10 @@ static int virtio_mmio_set_guest_notifiers(DeviceState *d, int nvqs, > goto assign_error; > } > } > + r = virtio_mmio_set_config_notifier(d, assign); > + if (r < 0) { > + goto assign_error; > + } > > return 0; >
diff --git a/hw/virtio/virtio-mmio.c b/hw/virtio/virtio-mmio.c index 342c918ea7..6c786db071 100644 --- a/hw/virtio/virtio-mmio.c +++ b/hw/virtio/virtio-mmio.c @@ -670,7 +670,29 @@ static int virtio_mmio_set_guest_notifier(DeviceState *d, int n, bool assign, return 0; } +static int virtio_mmio_set_config_notifier(DeviceState *d, bool assign) +{ + VirtIOMMIOProxy *proxy = VIRTIO_MMIO(d); + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); + VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); + EventNotifier *notifier = virtio_get_config_notifier(vdev); + int r = 0; + if (assign) { + r = event_notifier_init(notifier, 0); + if (r < 0) { + return r; + } + virtio_set_config_notifier_fd_handler(vdev, true, false); + } else { + virtio_set_config_notifier_fd_handler(vdev, false, false); + event_notifier_cleanup(notifier); + } + if (vdc->guest_notifier_mask && vdev->use_guest_notifier_mask) { + vdc->guest_notifier_mask(vdev, VIRTIO_CONFIG_IRQ_IDX, !assign); + } + return r; +} static int virtio_mmio_set_guest_notifiers(DeviceState *d, int nvqs, bool assign) { @@ -692,6 +714,10 @@ static int virtio_mmio_set_guest_notifiers(DeviceState *d, int nvqs, goto assign_error; } } + r = virtio_mmio_set_config_notifier(d, assign); + if (r < 0) { + goto assign_error; + } return 0;
Add configure interrupt support for virtio-mmio bus. This interrupt will working while backend is vhost-vdpa Signed-off-by: Cindy Lu <lulu@redhat.com> --- hw/virtio/virtio-mmio.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)