From mboxrd@z Thu Jan  1 00:00:00 1970
From: Avi Kivity <avi@redhat.com>
Subject: Re: splice() based interguest networking
Date: Tue, 02 Dec 2008 14:18:02 +0200
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Cc: Rusty Russell <rusty@rustcorp.com.au>,
	kvm-devel <kvm@vger.kernel.org>
To: Anthony Liguori <aliguori@us.ibm.com>
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Anthony Liguori wrote:
>
> 1) On TX, we vmsplice() from the sg buffer to one pipe.  This will end 
> up being vmsplice_to_pipe() in the kernel which is zero-copy.
>

That implies we do the MAC address switching in userspace (or that this 
is a point-to-point protocol, which severely limits its usefulness).

I think we can still have one-copy interguest networking if we have 
proper skb destructors; and since we need that for the more important 
guest->external copyless support, we basically get it for free (if delayed).

-- 
error compiling committee.c: too many arguments to function