vhost-user-scsi: prevent using uninitialized vqs
Of the 3 virtqueues, seabios only sets cmd, leaving ctrl
and event without a physical address. This can cause
vhost_verify_ring_part_mapping to return ENOMEM, causing
the following logs:
qemu-system-x86_64: Unable to map available ring for ring 0
qemu-system-x86_64: Verify ring failure on region 0
The qemu commit e6cc11d64f
has already resolved the issue for vhost scsi devices but
the fix was never applied to vhost-user scsi devices.
Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1560299717-177734-1-git-send-email-raphael.norwitz@nutanix.com
Message-Id: <1560299717-177734-1-git-send-email-raphael.norwitz@nutanix.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
parent
f0f8100287
commit
5d4c1ed3d4
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@ -93,7 +93,7 @@ static void vhost_user_scsi_realize(DeviceState *dev, Error **errp)
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}
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}
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vsc->dev.nvqs = 2 + vs->conf.num_queues;
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vsc->dev.nvqs = 2 + vs->conf.num_queues;
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vsc->dev.vqs = g_new(struct vhost_virtqueue, vsc->dev.nvqs);
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vsc->dev.vqs = g_new0(struct vhost_virtqueue, vsc->dev.nvqs);
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vsc->dev.vq_index = 0;
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vsc->dev.vq_index = 0;
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vsc->dev.backend_features = 0;
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vsc->dev.backend_features = 0;
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vqs = vsc->dev.vqs;
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vqs = vsc->dev.vqs;
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