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Re: [Xen-devel] [PATCH] tools: set migration constraints from cmdline



On Mon, 2013-02-04 at 09:57 +0000, Olaf Hering wrote:
> On Wed, Jan 30, Ian Campbell wrote:
> 
> > On Mon, 2013-01-28 at 17:32 +0000, Olaf Hering wrote:
> > > A variant of this change has been tested with xend, the patch below is
> > > only compile tested. The changes to libxl change the API, is that
> > > approach acceptable?
> > 
> > I'm afraid not, the compatibility requirements are covered in the
> > comment near the top of libxl.h.
> > 
> > So you either need a new function or to leverage the LIBXL_API_VERSION
> > define (which the user must supply) such that people providing 0x040200
> > see the current interface and people providing 0x040300 (or nothing) see
> > the new one.
> 
> And to avoid the API change at all, should max_iters and max_factor be
> passed via xenstore to xc_domain_save()? So that either the caller of
> xc_domain_save reads the values from xenstore, or the function itself
> reads it from there. What do you think?

Unfortunately libxc cannot access xenstore.

Ian.


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