On Fri, 2019-03-29 at 22:26 +1100, Michael Ellerman wrote: > > From: Diana Craciun <diana.craciun@xxxxxxx> > > commit ebcd1bfc33c7a90df941df68a6e5d4018c022fba upstream. > > Implement the barrier_nospec as a isync;sync instruction sequence. > The implementation uses the infrastructure built for BOOK3S 64. > > Signed-off-by: Diana Craciun <diana.craciun@xxxxxxx> > [mpe: Split out of larger patch] > Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> What is the performanc impact of these spectre fixes? Can I compile it away? Jocke
