From: Jason Wang <jasow...@redhat.com>
This patch introduce a virtio-s390 specific device_plugged() function
and doing the number of virtqueue validation inside.
Cc: Alexander Graf <ag...@suse.de>
Cc: Richard Henderson <r...@twiddle.net>
Signed-off-by: Jason Wang <jasow...@redhat.com>
Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---
hw/s390x/s390-virtio-bus.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/hw/s390x/s390-virtio-bus.c b/hw/s390x/s390-virtio-bus.c
index 0748e30..8a6e27e 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 = {
--
MST
