Re: [Xen-devel] [PATCH 1/4] docs: Document control features the can be advertised by guests...

[Paul Durrant <Paul.Durrant@xxxxxxxxxx>]

> -----Original Message-----
> From: Jan Beulich [mailto:JBeulich@xxxxxxxx]
> Sent: 09 November 2015 10:44
> To: Paul Durrant
> Cc: Ian Campbell; Ian Jackson; xen-devel@xxxxxxxxxxxxxxxxxxxx; Keir
> (Xen.org); Tim (Xen.org)
> Subject: Re: [PATCH 1/4] docs: Document control features the can be
> advertised by guests...
> 
> >>> On 06.11.15 at 18:21, <paul.durrant@xxxxxxxxxx> wrote:
> > ...via xenstore.
> >
> > XenServer already makes use of ~/control/feature-suspend being written
> > to advertise guest capability of responding to 'suspend' when written to
> > ~/control/shutdown and, since they are derived from XenServer drivers,
> > the Xen Project Windows PV drivers attempt to write this value. The write
> > currently fails for libxl provisioned VMs because ~/control is read-only
> > to the guest (only ~/control/shutdown is writable, for ackowledgement
> > purposes).
> 
> If these can't be set by a guest with the current default toolstack
> anyway, what's the point of documenting them (the more without
> warning about that fact in the text being added)?
>

Because I want to add them to libxl.

  Paul

 
> Jan


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