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Date: Tue, 28 Jul 2009 09:48:00 -0500
From: Anthony Liguori <anthony@codemonkey.ws>
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Subject: Re: [Qemu-devel] Re: virtio-serial: An interface for host-guest
	communication
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To: "Richard W.M. Jones" <rjones@redhat.com>
Cc: Amit Shah <amit.shah@redhat.com>, qemu-devel@nongnu.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org

Richard W.M. Jones wrote:
> On Mon, Jul 27, 2009 at 06:44:28PM -0500, Anthony Liguori wrote:
>   
>> It really suggests that you need _one_ vmchannel that's exposed to  
>> userspace with a single userspace daemon that consumes it.
>>     
>
> ... or a more flexible API.  I don't like having fixed /dev/vmch*
> devices either.
>   

Indeed.

> A long time ago (on a mailing list not so far away) there was a much
> better userspace API proposed, which had a separate AF_VMCHANNEL
> address family.
>
> That API works much more like TCP sockets, except without requiring
> network devices:
>   

Dave Miller nacked that approach with a sledgehammer instead preferring 
that we just use standard TCP/IP which is what led to the current 
implementation using slirp.

A userspace daemon with unix domain sockets could give a similar solution.

Regards,

Anthony Liguori