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virtio: allow per-device-class legacy features

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Legacy features are those that transitional devices only
expose on the legacy interface.
Allow different ones per device class.

Cc: qemu-stable@nongnu.org # dependency for the next patch
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
Michael S. Tsirkin 2016-11-04 12:04:23 +02:00
parent 1b39bc1cf6
commit 9b706dbbbb
4 changed files with 13 additions and 2 deletions
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2
hw/virtio/virtio.c
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@ -2214,6 +2214,8 @@ static void virtio_device_class_init(ObjectClass *klass, void *data)
dc->props = virtio_properties;
vdc->start_ioeventfd = virtio_device_start_ioeventfd_impl;
vdc->stop_ioeventfd = virtio_device_stop_ioeventfd_impl;
vdc->legacy_features |= VIRTIO_LEGACY_FEATURES;
}
bool virtio_device_ioeventfd_enabled(VirtIODevice *vdev)