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Re: [PATCH v20210601 07/38] tools: unify type checking for data pfns in migration stream

On 07.06.21 12:12, Olaf Hering wrote:
Am Wed, 2 Jun 2021 14:03:40 +0200
schrieb Juergen Gross <jgross@xxxxxxxx>:

Maybe XEN_DOMCTL_PFINFO_XALLOC should no longer be supported, i.e.
a stream containing it should be rejected? This might be a
worthwhile modification of patch 5.

If there is a desire to actively break incoming domUs from pre-4.6 hosts, this 
should probably be done in a separate change.

I have not checked if such migration works today with unmodified 

At least with your patch this might change now, as you are modifying
the behavior in case of XEN_DOMCTL_PFINFO_XALLOC.

Officially pre-4.6 hosts are not supported regarding LM. So your patch
should be fine in this regard. OTH I'd rather have a clear failure than
a maybe weird behavior in case a stream is containing a record with


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