virtio: disable ioeventfd as early as possible

Avoid "tricking" virtio-blk-dataplane into thinking that ioeventfd will be
available when it is not.  This bug has always been there, but it will break
TCG+ioeventfd=on once the dataplane code will be always used when ioeventfd=on.

Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Paolo Bonzini 2016-10-21 22:48:04 +02:00 committed by Michael S. Tsirkin
parent 019518a80e
commit ca2b413c39
2 changed files with 8 additions and 8 deletions

View file

@ -709,6 +709,10 @@ static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp)
sch->cssid, sch->ssid, sch->schid, sch->devno,
ccw_dev->bus_id.valid ? "user-configured" : "auto-configured");
if (!kvm_eventfds_enabled()) {
dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD;
}
if (k->realize) {
k->realize(dev, &err);
}
@ -1311,10 +1315,6 @@ static void virtio_ccw_device_plugged(DeviceState *d, Error **errp)
return;
}
if (!kvm_eventfds_enabled()) {
dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD;
}
sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus);