On Fri, Mar 08, 2019 at 12:16:11PM +1100, Michael Ellerman wrote: > In order to implement KUAP (Kernel Userspace Access Protection) on > Power9 we will be using the AMR, and therefore indirectly the > UAMOR/AMOR. > > So save/restore these regs in the idle code. > > Signed-off-by: Michael Ellerman <m...@ellerman.id.au> > --- > v5: Unchanged. > v4: New. > > arch/powerpc/kernel/idle_book3s.S | 27 +++++++++++++++++++++++---- > 1 file changed, 23 insertions(+), 4 deletions(-)
Opps.. i posted a comment on the v4. It would be good if we can make AMOR/UAMOR/AMR save-restore code power9 only.
