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Re: [Qemu-devel] Re: virtio-serial: An interface for host-guest communic


From: Richard W.M. Jones
Subject: Re: [Qemu-devel] Re: virtio-serial: An interface for host-guest communication
Date: Tue, 28 Jul 2009 15:55:57 +0100
User-agent: Mutt/1.5.18 (2008-05-17)

On Tue, Jul 28, 2009 at 09:48:00AM -0500, Anthony Liguori wrote:
> 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.

I'm aware of that - I just don't think it was a good choice.

[BTW the qemu-devel mailing list seems to be bouncing messages]

Rich.

-- 
Richard Jones, Emerging Technologies, Red Hat  http://et.redhat.com/~rjones
libguestfs lets you edit virtual machines.  Supports shell scripting,
bindings from many languages.  http://et.redhat.com/~rjones/libguestfs/
See what it can do: http://et.redhat.com/~rjones/libguestfs/recipes.html




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