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| author | Stefan Hajnoczi <stefanha@redhat.com> | 2014-03-19 08:58:56 +0100 |
|---|---|---|
| committer | Andreas Färber <afaerber@suse.de> | 2014-03-19 22:23:13 +0100 |
| commit | 39f72ef94ba74701d18daf82b44c18a60f94eb60 (patch) | |
| tree | a79b0e1004d295dc4e988f484b7dac5a76d2cef8 /hw/virtio | |
| parent | 9561fda8d90e176bef598ba87c42a1bd6ad03ef7 (diff) | |
| download | qemu-39f72ef94ba74701d18daf82b44c18a60f94eb60.zip qemu-39f72ef94ba74701d18daf82b44c18a60f94eb60.tar.gz qemu-39f72ef94ba74701d18daf82b44c18a60f94eb60.tar.bz2 | |
qom: Add check() argument to object_property_add_link()
There are currently three types of object_property_add_link() callers:
1. The link property may be set at any time.
2. The link property of a DeviceState instance may only be set before
realize.
3. The link property may never be set, it is read-only.
Something similar can already be achieved with
object_property_add_str()'s set() argument. Follow its example and add
a check() argument to object_property_add_link().
Also provide default check() functions for case #1 and #2. Case #3 is
covered by passing a NULL function pointer.
Cc: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Anthony Liguori <aliguori@amazon.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
[AF: Tweaked documentation comment]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Diffstat (limited to 'hw/virtio')
| -rw-r--r-- | hw/virtio/virtio-pci.c | 1 | ||||
| -rw-r--r-- | hw/virtio/virtio-rng.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index eebb819..ce97514 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -1518,6 +1518,7 @@ static void virtio_rng_initfn(Object *obj) object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); object_property_add_link(obj, "rng", TYPE_RNG_BACKEND, (Object **)&dev->vdev.conf.rng, + qdev_prop_allow_set_link_before_realize, OBJ_PROP_LINK_UNREF_ON_RELEASE, NULL); } diff --git a/hw/virtio/virtio-rng.c b/hw/virtio/virtio-rng.c index 2efda8b..cbf0138 100644 --- a/hw/virtio/virtio-rng.c +++ b/hw/virtio/virtio-rng.c @@ -224,6 +224,7 @@ static void virtio_rng_initfn(Object *obj) object_property_add_link(obj, "rng", TYPE_RNG_BACKEND, (Object **)&vrng->conf.rng, + qdev_prop_allow_set_link_before_realize, OBJ_PROP_LINK_UNREF_ON_RELEASE, NULL); } |