[libvirt] list vsock cids allocated to VMs?

[Daniel P. Berrangé]

On Wed, Jan 30, 2019 at 11:25:25AM -0600, Brian Kroth wrote:
> OK, I was expecting it to maintain a list internally (at least for the
> things it knows about) so that the auto property in the domxml can work
> nicely, but I suppose it would still need to fallback to letting the kernel
> reject an already taken cid number anyways (eg: due to a manually executed
> qemu outside of libvirt), so either way the list would not be authoritative.

No libvirt doesn't keep any list. When allocating one automatically it
just iterates over IDs, trying to acquire exclusive access to one from
the kernel until it succeeds.  IOW the kernel has the authoritative
list


Regards,
Daniel
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