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[Qemu-devel] [PATCH V8 7/9] virtio-s390: introduce virtio_s390_device_pl
From: |
Jason Wang |
Subject: |
[Qemu-devel] [PATCH V8 7/9] virtio-s390: introduce virtio_s390_device_plugged() |
Date: |
Fri, 29 May 2015 14:15:30 +0800 |
This patch introduce a virtio-s390 specific device_plugged() function
and doing the number of virtqueue validation inside.
Cc: Alexander Graf <address@hidden>
Cc: Richard Henderson <address@hidden>
Signed-off-by: Jason Wang <address@hidden>
---
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 3801c73..cbb3f92 100644
--- a/hw/s390x/s390-virtio-bus.c
+++ b/hw/s390x/s390-virtio-bus.c
@@ -536,6 +536,19 @@ static unsigned virtio_s390_get_features(DeviceState *d)
return dev->host_features;
}
+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)
@@ -736,6 +749,7 @@ static void virtio_s390_bus_class_init(ObjectClass *klass,
void *data)
bus_class->max_dev = 1;
k->notify = virtio_s390_notify;
k->get_features = virtio_s390_get_features;
+ k->device_plugged = virtio_s390_device_plugged;
}
static const TypeInfo virtio_s390_bus_info = {
--
2.1.4
- [Qemu-devel] [PATCH V8 0/9] Support more virtio queues, Jason Wang, 2015/05/29
- [Qemu-devel] [PATCH V8 1/9] virtio-net: adding all queues in .realize(), Jason Wang, 2015/05/29
- [Qemu-devel] [PATCH V8 2/9] virtio: device_plugged() can fail, Jason Wang, 2015/05/29
- [Qemu-devel] [PATCH V8 3/9] virtio: introduce virtio_get_num_queues(), Jason Wang, 2015/05/29
- [Qemu-devel] [PATCH V8 4/9] virtio-ccw: introduce ccw specific queue limit, Jason Wang, 2015/05/29
- [Qemu-devel] [PATCH V8 5/9] virtio-ccw: validate the number of queues against bus limitation, Jason Wang, 2015/05/29
- [Qemu-devel] [PATCH V8 6/9] virtio-s390: introduce virito s390 queue limit, Jason Wang, 2015/05/29
- [Qemu-devel] [PATCH V8 7/9] virtio-s390: introduce virtio_s390_device_plugged(),
Jason Wang <=
- [Qemu-devel] [PATCH V8 8/9] virtio: rename VIRTIO_PCI_QUEUE_MAX to VIRTIO_QUEUE_MAX, Jason Wang, 2015/05/29
- [Qemu-devel] [PATCH V8 9/9] virtio: increase the queue limit to 1024, Jason Wang, 2015/05/29