Hi, Here is the NMI IPI enablement for powernv, which requires supported firmware and hardware:
https://lists.ozlabs.org/pipermail/skiboot/2017-September/009111.html And some preceeding patches that fix issues I ran into when testing it. Thanks, Nick Nicholas Piggin (5): powerpc/watchdog: do not panic from locked CPU's IPI handler powerpc/watchdog: do not backtrace locked CPUs twice if allcpus backtrace is enabled powerpc/watchdog: do not trigger SMP crash from touch_nmi_watchdog powerpc/xmon: avoid tripping SMP hardlockup watchdog powerpc/powernv: implement NMI IPI with OPAL_SIGNAL_SYSTEM_RESET arch/powerpc/include/asm/opal-api.h | 1 + arch/powerpc/include/asm/opal.h | 2 ++ arch/powerpc/kernel/irq.c | 43 +++++++++++++++++++--- arch/powerpc/kernel/watchdog.c | 29 ++++++++------- arch/powerpc/platforms/powernv/opal-wrappers.S | 1 + arch/powerpc/platforms/powernv/powernv.h | 1 + arch/powerpc/platforms/powernv/setup.c | 3 ++ arch/powerpc/platforms/powernv/smp.c | 50 ++++++++++++++++++++++++++ arch/powerpc/xmon/xmon.c | 17 ++++++--- 9 files changed, 127 insertions(+), 20 deletions(-) -- 2.13.3
