On Thu, Sep 22, 2016 at 04:07:21PM +1000, Benjamin Herrenschmidt wrote:
> On Thu, 2016-09-22 at 10:51 +0530, Bharata B Rao wrote:
> > The flag values are expected to remain same for a machine version for
> > the migration to succeed, but this expectation is broken now. Should
> > we make the addition of these flags conditional on machine type
> > version ?
> > But these flags are part of POWER8 CPU definition which is common for
> > both pseries and upcoming powernv.
> Does this affect KVM ? (And if yes why on earth would KVM give a flying
> f*** about the TCG instruction flags ?) ... If not, then I think we can
> safely not care.

Yes, KVM migration is broken.


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