29 Mar
2019
29 Mar
'19
4:22 p.m.
On Fri, 2019-03-29 at 22:26 +1100, Michael Ellerman wrote:
From: Diana Craciun diana.craciun@nxp.com
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@nxp.com [mpe: Split out of larger patch] Signed-off-by: Michael Ellerman mpe@ellerman.id.au
What is the performanc impact of these spectre fixes? Can I compile it away?
Jocke