virtio-serial: don't set MULTIPORT for 1 port dev
Since commit 98b19252cf
, all
serial devices declare MULTIPORT feature.
To allow 0.12 compatibility, we should clear this when
max_nr_ports is 1.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
parent
8bfbde6d35
commit
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@ -335,8 +335,10 @@ static void handle_input(VirtIODevice *vdev, VirtQueue *vq)
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static uint32_t get_features(VirtIODevice *vdev, uint32_t features)
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static uint32_t get_features(VirtIODevice *vdev, uint32_t features)
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{
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{
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VirtIOSerial *vser = DO_UPCAST(VirtIOSerial, vdev, vdev);
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if (vser->bus->max_nr_ports > 1) {
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features |= (1 << VIRTIO_CONSOLE_F_MULTIPORT);
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features |= (1 << VIRTIO_CONSOLE_F_MULTIPORT);
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}
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return features;
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return features;
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}
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}
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