[XenPPC] Question about: [LINUX] Various fixes for mmapping I/O

in changeset:   12392:e1f3af226a8e8cb32de079b283cdcac718d3e076
you say:
  "auto-translate guests can use remap_pfn_range() rather than
   direct_remap_pfn_range()."

And code says:
   kfraser 12392:       /* Unsupported for auto-translate guests. */
   kfraser 12392:       if (xen_feature(XENFEAT_auto_translated_physmap))
   kfraser 12392:               return -ENOSYS;

Is there a privcmd that "auto-translate guests" can use or are youexpecting someone to fill this functionality in?

-JX

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