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From: "Daniel P. Berrange" <berrange@redhat.com>
To: Pekka Enberg <penberg@kernel.org>
Cc: Sasha Levin <levinsasha928@gmail.com>,
	mingo@elte.hu, gorcunov@gmail.com, asias.hejun@gmail.com,
	kvm@vger.kernel.org, Osier Yang <jyang@redhat.com>
Subject: Re: [PATCH] kvm tools: Allow the user to pass a FD to use as a TAP device
Date: Wed, 7 Dec 2011 16:38:47 +0000	[thread overview]
Message-ID: <20111207163847.GB10305@redhat.com> (raw)
In-Reply-To: <CAOJsxLH-Mvv5O1uUzkiZmbLcEJ94QKfwKrSMdXuJbdbUwQxXwg@mail.gmail.com>

On Wed, Dec 07, 2011 at 06:28:12PM +0200, Pekka Enberg wrote:
> On Wed, Dec 7, 2011 at 11:37 AM, Sasha Levin <levinsasha928@gmail.com> wrote:
> > This allows users to pass a pre-configured fd to use for the network
> > interface.
> >
> > For example:
> >        kvm run -n mode=tap,fd=3 3<>/dev/net/tap3
> >
> > Cc: Daniel P. Berrange <berrange@redhat.com>
> > Cc: Osier Yang <jyang@redhat.com>
> > Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
> 
> Daniel, Osier, I assume this is useful for libvirt?

Yes, this works.

I don't know if kvmtool supports  the VNET_HDR extension yet, but if it
does, then we can make libvirt pass in a pre-opened FD for that too.


Daniel
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  reply	other threads:[~2011-12-07 16:39 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-07  9:37 [PATCH] kvm tools: Allow the user to pass a FD to use as a TAP device Sasha Levin
2011-12-07 16:28 ` Pekka Enberg
2011-12-07 16:38   ` Daniel P. Berrange [this message]
2011-12-07 17:24     ` Pekka Enberg
2011-12-08 15:32       ` Osier Yang

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