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Date:   Thu, 31 Aug 2017 12:54:55 +0100
From:   Stefan Hajnoczi <>
To:     "Jorgen S. Hansen" <>
Cc:     Dexuan Cui <>,
        "" <>,
        "" <>,
        "" <>,
        "" <>,
        KY Srinivasan <>,
        Haiyang Zhang <>,
        Stephen Hemminger <>,
        George Zhang <>,
        Michal Kubecek <>, Asias He <>,
        Vitaly Kuznetsov <>,
        Cathy Avery <>,
        "" <>,
        Rolf Neugebauer <>,
        Dave Scott <>,
        Marcelo Cerri <>,
        "" <>,
        "" <>,
        "" <>,
        "" <>,
        Dan Carpenter <>
Subject: Re: [PATCH] vsock: only load vmci transport on VMware hypervisor by

On Tue, Aug 29, 2017 at 03:37:07PM +0000, Jorgen S. Hansen wrote:
> > On Aug 29, 2017, at 4:36 AM, Dexuan Cui <> wrote:
> If we allow multiple host side transports, virtio host side support and
> vmci should be able to coexist regardless of the order of initialization.

That sounds good to me.

This means af_vsock.c needs to be aware of CID allocation.  Currently the
vhost_vsock.ko driver handles this itself (it keeps a list of CIDs and
checks that they are not used twice).  It should be possible to move
that state into af_vsock.c so we have <cid, host_transport> pairs.

I'm currently working on NFS over AF_VSOCK and sock_diag support (for
ss(8) and netstat-like tools).

Multi-transport support is lower priority for me at the moment.  I'm
happy to review patches though.  If there is no progress on this by the
end of the year then I will have time to work on it.

Are either of you are in Prague, Czech Republic on October 25-27 for
Linux Kernel Summit, Open Source Summit Europe, Embedded Linux
Conference Europe, KVM Forum, or MesosCon Europe?


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