Re: [Xen-devel] [PATCH 18/22] libxl: Rationalise calculation of user to run qemu as

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Fri, Sep 15, 2017 at 07:48:55PM +0100, Ian Jackson wrote:
> If the config specifies a user we use that.  Otherwise:
> 
> When we are not restricting qemu, there is very little point running
> it as a different user than root.  Indeed, previously, creating the
> "magic" users would cause qemu to become slightly dysfunctional (for
> example, you can't insert a cd that the qemu user can't read).
> So, in that case, default to running it as root.
> 
> Conversely, if restriction is requested, we must insist on running
> qemu as a non-root user.
> 
> Sadly the admin is still required to create 2^16-epsilon users!
> 

I will let Stefano comment on this.

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