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


From: Anthony Liguori
Subject: Re: [Qemu-devel] Re: virtio-serial: An interface for host-guest communication
Date: Tue, 28 Jul 2009 09:48:00 -0500
User-agent: Thunderbird 2.0.0.21 (X11/20090320)

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




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