Re: [libvirt] [PATCH] storage pool discovery

["Daniel P. Berrange" <berrange redhat com>]

On Sun, Aug 03, 2008 at 04:20:50AM +0200, Stefan de Konink wrote:
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> Daniel,
> 
> Stefan de Konink schreef:
> > As you know I wrote such thing for iSCSI/Solaris, iSCSI/Netapp so... if
> > you want such script I can fabricate something, maybe it would be
> > interesting to not create a script, but instead a binary that links to
> > libvirt and is able to lookup the connection url and creates the xenstore
> > stuff.
> 
> 
> I have some code now that basically parses the XENBUS_PATH/param and
> looks it up in libvirt. Now I have some questions:
> 
> - - Is it possible to reuse the hypervisor connection from within libvirt?
>   I would like to make this working:
>    xenUnifiedPrivatePtr priv = (xenUnifiedPrivatePtr) conn->privateData;

You are only allowed to cast to xenUnifiedPrivatePtr if you are running
within the Xen driver code. It is forbidden in all other places.

> - - For iSCSI and related stuff everything was relatively easy, because
>   this would just mean to write the right /dev/blabla to the xenstore.
>   What is your idea to get different drivers working via:
>   virt://pool/volume (so basically blktap vs file vs disk)

My idea was to have a script in /etc/xen/scripts/

Daniel
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