Re: [Xen-devel] Re: [Qemu-devel] [PATCH 12/13] set vnc password from xenstore.

[Avi Kivity]

Anthony Liguori wrote:
> >   -vnc localhost:3,passwdfd=6
> >   
>
> In general, I strongly dislike passing file descriptors like this.

I find this very useful, and actually think we should encourage it, and 
also allow passing file descriptors over the monitor (using 
SCM_RIGHTS).  This can help de-privilege qemu.  In fact, you can run a 
guest where qemu doesn't even have permissions to open the backing file.

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