Re: [Qemu-devel] [POC] colo-proxy in qemu

[Stefan Hajnoczi]

On Mon, Jul 20, 2015 at 02:42:33PM +0800, Li Zhijian wrote:
> We are planning to implement colo-proxy in qemu to cache and compare packets.

I thought there is a kernel module to do that?

Why does the proxy need to be part of the QEMU process?  -netdev socket
or host network stack features allow you to process packets in a
separate process.

Without details on what the proxy does it's hard to discuss this.  What
happens in the non-TCP case?  What happens in the TCP case?

Does the proxy need to perform privileged operations, create sockets,
open files, etc?

The slirp code is not actively developed or used much in production.  It
might be a good idea to audit the code for bugs if you want to use it.

Stefan

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