Merge tag 'x86_urgent_for_v6.8_rc5' of git://

Pull x86 fix from Borislav Petkov:

 - Use a GB page for identity mapping only when memory of this size is
   requested so that mapping of reserved regions is prevented which
   would otherwise lead to system crashes on UV machines

* tag 'x86_urgent_for_v6.8_rc5' of git://
  x86/mm/ident_map: Use gbpages only where full GB page should be mapped.