Hi, These are a couple of improvements to powernv/opal boot and shutdown paths. Also a patch to move smp_send_stop over to use NMI IPIs, which gives us a significantly better chance to stop secondaries on platforms which support it (pSeries and PowerNV POWER9 so far).
Patch 1 in particular it would be good if people could take a look at. I *think* it's okay wrt kexec, but I could miss something or some old firmware might do the wrong thing. Thanks, Nick Nicholas Piggin (3): powerpc/powernv: Avoid the secondary hold spinloop for OPAL boot powerpc/powernv: Always stop secondaries before reboot/shutdown powerpc: use NMI IPI for smp_send_stop arch/powerpc/include/asm/opal.h | 2 +- arch/powerpc/kernel/head_64.S | 4 +++- arch/powerpc/kernel/setup_64.c | 14 ++++++++++++-- arch/powerpc/kernel/smp.c | 9 +++++---- arch/powerpc/platforms/powernv/opal-flash.c | 28 +--------------------------- arch/powerpc/platforms/powernv/setup.c | 15 +++++---------- 6 files changed, 27 insertions(+), 45 deletions(-) -- 2.13.3
