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-rw-r--r--tests/qtest/libqos/virtio.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/tests/qtest/libqos/virtio.c b/tests/qtest/libqos/virtio.c
index 6fe7bf9..fba9186 100644
--- a/tests/qtest/libqos/virtio.c
+++ b/tests/qtest/libqos/virtio.c
@@ -260,6 +260,8 @@ void qvring_init(QTestState *qts, const QGuestAllocator *alloc, QVirtQueue *vq,
/* vq->used->flags */
qvirtio_writew(vq->vdev, qts, vq->used, 0);
+ /* vq->used->idx */
+ qvirtio_writew(vq->vdev, qts, vq->used + 2, 0);
/* vq->used->avail_event */
qvirtio_writew(vq->vdev, qts, vq->used + 2 +
sizeof(struct vring_used_elem) * vq->size, 0);