diff options
| author | Jason Wang <jasowang@redhat.com> | 2015-05-29 14:15:30 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-05-31 16:47:50 +0200 |
| commit | d820331a0b47cbbdc409b435545aea25e19b57ad (patch) | |
| tree | 31bc98297fceb4fa26a89d4bf1f1110b6fa54c57 | |
| parent | 74c85296dc880568005b8e7572e08a39d66bcdca (diff) | |
virtio-s390: introduce virtio_s390_device_plugged()
This patch introduce a virtio-s390 specific device_plugged() function
and doing the number of virtqueue validation inside.
Cc: Alexander Graf <agraf@suse.de>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | hw/s390x/s390-virtio-bus.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/hw/s390x/s390-virtio-bus.c b/hw/s390x/s390-virtio-bus.c index 0748e30734..8a6e27eac1 100644 --- a/hw/s390x/s390-virtio-bus.c +++ b/hw/s390x/s390-virtio-bus.c @@ -529,6 +529,19 @@ static void virtio_s390_notify(DeviceState *d, uint16_t vector) s390_virtio_irq(0, token); } +static void virtio_s390_device_plugged(DeviceState *d, Error **errp) +{ + VirtIOS390Device *dev = to_virtio_s390_device(d); + VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); + int n = virtio_get_num_queues(vdev); + + if (n > VIRTIO_S390_QUEUE_MAX) { + error_setg(errp, "The nubmer of virtqueues %d " + "exceeds s390 limit %d", n, + VIRTIO_S390_QUEUE_MAX); + } +} + /**************** S390 Virtio Bus Device Descriptions *******************/ static void s390_virtio_net_class_init(ObjectClass *klass, void *data) @@ -722,6 +735,7 @@ static void virtio_s390_bus_class_init(ObjectClass *klass, void *data) BusClass *bus_class = BUS_CLASS(klass); bus_class->max_dev = 1; k->notify = virtio_s390_notify; + k->device_plugged = virtio_s390_device_plugged; } static const TypeInfo virtio_s390_bus_info = { |