linux-kernel - Re: [PATCHv5 3/3] vhost_net: a kernel-level virtio server

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Message-ID: <4AAFFC8E.9010404@gmail.com>
Date:	Tue, 15 Sep 2009 16:43:58 -0400
From:	Gregory Haskins <gregory.haskins@...il.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
CC:	Avi Kivity <avi@...hat.com>,
	"Ira W. Snyder" <iws@...o.caltech.edu>, netdev@...r.kernel.org,
	virtualization@...ts.linux-foundation.org, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org, mingo@...e.hu, linux-mm@...ck.org,
	akpm@...ux-foundation.org, hpa@...or.com,
	Rusty Russell <rusty@...tcorp.com.au>, s.hetze@...ux-ag.com,
	alacrityvm-devel@...ts.sourceforge.net
Subject: Re: [PATCHv5 3/3] vhost_net: a kernel-level virtio server

Michael S. Tsirkin wrote:
> On Tue, Sep 15, 2009 at 04:08:23PM -0400, Gregory Haskins wrote:
>> No, what I mean is how do you surface multiple ethernet and consoles to
>> the guests?  For Ira's case, I think he needs at minimum at least one of
>> each, and he mentioned possibly having two unique ethernets at one point.
>>
>> His slave boards surface themselves as PCI devices to the x86
>> host.  So how do you use that to make multiple vhost-based devices (say
>> two virtio-nets, and a virtio-console) communicate across the transport?
>>
>> There are multiple ways to do this, but what I am saying is that
>> whatever is conceived will start to look eerily like a vbus-connector,
>> since this is one of its primary purposes ;)
> 
> Can't all this be in userspace?

Can you outline your proposal?

-Greg


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