Re: [Xen-devel] [PATCH v2 2/8] libxc: Provide access to internal handles

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Mon, Jun 11, 2018 at 03:13:18PM +0100, Ian Jackson wrote:
> In order to support auditing of qemu depriv, my audit tool wants to
> know the fd of a privcmd handle on which it can easily make
> hypercalls.  xencall provides such a handle, but has no cooked
> facilities for making hypercalls.  So I open a libxc handle.  That
> means I need to get the privcmd fd out of the libxc handle.
> 
> ISTM that it is best to do this by providing an interface to get the
> underlying library handles for a libxc handle.  This kind of interface
> is quite common elsewhere and has not caused problems.
> 
> libxc is not a stable API so the downside risk of providing this
> access is not significant.
> 
> Signed-off-by: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
> Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>

Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Thanks.

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