diff options
| -rw-r--r-- | hw/virtio/virtio-mmio.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/hw/virtio/virtio-mmio.c b/hw/virtio/virtio-mmio.c index 72da12f..8091320 100644 --- a/hw/virtio/virtio-mmio.c +++ b/hw/virtio/virtio-mmio.c @@ -673,7 +673,30 @@ static int virtio_mmio_set_guest_notifier(DeviceState *d, int n, bool assign, return 0; } +static int virtio_mmio_set_config_guest_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); + bool with_irqfd = false; + EventNotifier *notifier = virtio_config_get_guest_notifier(vdev); + int r = 0; + if (assign) { + r = event_notifier_init(notifier, 0); + if (r < 0) { + return r; + } + virtio_config_set_guest_notifier_fd_handler(vdev, assign, with_irqfd); + } else { + virtio_config_set_guest_notifier_fd_handler(vdev, assign, with_irqfd); + 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) { @@ -695,6 +718,10 @@ static int virtio_mmio_set_guest_notifiers(DeviceState *d, int nvqs, goto assign_error; } } + r = virtio_mmio_set_config_guest_notifier(d, assign); + if (r < 0) { + goto assign_error; + } return 0; |