I had a bunch of random little fixes and cleanups around and was prompted to put them together and make a change to call RTAS with MSR[RI] enabled because of a report of the hard lockup watchdog NMI IPI hitting in an rtas call which then crashed because it's unrecoverable.
Could possibly move patch 9 earlier if it would help with backporting. Thanks, Nick Nicholas Piggin (14): powerpc/rtas: Move rtas entry assembly into its own file powerpc/rtas: Make enter_rtas a nokprobe symbol on 64-bit powerpc/rtas: Fix whitespace in rtas_entry.S powerpc/rtas: Call enter_rtas with MSR[EE] disabled powerpc/rtas: Modernise RI clearing on 64-bit powerpc/rtas: Load rtas entry MSR explicitly powerpc/rtas: PACA can be restored directly from SPRG powerpc/rtas: call enter_rtas in real-mode on 64-bit powerpc/rtas: Leave MSR[RI] enabled over RTAS call powerpc/rtas: replace rtas_call_unlocked with raw_rtas_call powerpc/rtas: tidy __fetch_rtas_last_error powerpc/rtas: Close theoretical memory leak powerpc/rtas: enture rtas_call is called with MMU enabled powerpc/rtas: Consolidate and improve checking for rtas callers arch/powerpc/include/asm/rtas.h | 4 +- arch/powerpc/kernel/Makefile | 2 +- arch/powerpc/kernel/entry_32.S | 49 ------ arch/powerpc/kernel/entry_64.S | 150 ------------------- arch/powerpc/kernel/rtas.c | 132 +++++++++------- arch/powerpc/kernel/rtas_entry.S | 144 ++++++++++++++++++ arch/powerpc/platforms/pseries/hotplug-cpu.c | 2 +- arch/powerpc/platforms/pseries/ras.c | 7 +- arch/powerpc/xmon/xmon.c | 2 +- 9 files changed, 227 insertions(+), 265 deletions(-) create mode 100644 arch/powerpc/kernel/rtas_entry.S -- 2.23.0
