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virtio-s390: introduce virtio_s390_device_plugged()

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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>
This commit is contained in:
Jason Wang 2015-05-29 14:15:30 +08:00 committed by Michael S. Tsirkin
parent 74c85296dc
commit d820331a0b
1 changed files with 14 additions and 0 deletions
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14
hw/s390x/s390-virtio-bus.c
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@ -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 = {