On Wed, 2017-08-30 at 23:17 +1000, Michael Ellerman wrote: > It's not clear why it makes sense for these to be empty. Either for the > general idea of the "flush_all_mm()" API, or for your intended use by > CXL.
Indeed. On hash we don't have a way to flush a PID out of the TLB, but you can flush the whole LPID. Cheers, Ben.