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Re: [Qemu-devel] Hot reload network configuration

From: Stefan Hajnoczi
Subject: Re: [Qemu-devel] Hot reload network configuration
Date: Mon, 16 May 2016 09:22:58 -0700
User-agent: Mutt/1.6.0 (2016-04-01)

On Wed, May 11, 2016 at 08:50:54PM +0800, Hu Keping wrote:
> Is there any possible that start qemu with --net=none and then change the
> configuration of the network, say using tap for example?

Yes.  If your machine type supports PCI hotplug then you can use the
netdev_add and device_add commands.  This is equivalent to hotplugging a
NIC into a running machine.

I don't have exact syntax because I haven't tested it, but it should be
similar to using the -netdev tap,id=netdev0 -device e1000,netdev=netdev0
command-line option syntax.


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