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libqos/virtio.c: Correct 'flags' reading in qvirtqueue_kick 

In qvirtqueue_kick(), the 'flags' were previously being incorrectly read from
vq->avail instead of the correct vq->used location. This update ensures 'flags'
are read from the correct location as per the virtio standard.

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20240320090442.267525-1-zheyuma97@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Zheyu Ma 2024-03-20 10:04:42 +01:00 committed by Thomas Huth
parent 6328d8ffa6
commit 66e411885a
1 changed files with 1 additions and 1 deletions
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2
tests/qtest/libqos/virtio.c
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@ -394,7 +394,7 @@ void qvirtqueue_kick(QTestState *qts, QVirtioDevice *d, QVirtQueue *vq,
qvirtio_writew(d, qts, vq->avail + 2, idx + 1);
/* Must read after idx is updated */
flags = qvirtio_readw(d, qts, vq->avail);
flags = qvirtio_readw(d, qts, vq->used);
avail_event = qvirtio_readw(d, qts, vq->used + 4 +
sizeof(struct vring_used_elem) * vq->size);