On Fri, Jan 13, 2017 at 05:35:35AM -0700, Jan Beulich wrote:
> >>> On 13.01.17 at 13:14, <daniel.ki...@oracle.com> wrote:
> > Jan, so, __XEN_LATEST_INTERFACE_VERSION__ is used only for Xen internal 
> > purposes
> > (eg. for xl build, etc.) and should not be used as a reference point 
> > externally,
> > e.g. in kexec-tools?
> It's certainly meant for external consumption (see my original reply
> to Eric), but if at all possible you should not use it for (build time,
> obviously) feature detection.

So, AIUI, __XEN_LATEST_INTERFACE_VERSION__ should be used when e.g. structure
layout passed to a given hypercall changes and it is not possible to detect
such change in other way. Right?


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