This patchset adds the state saving required to safely take critical and machine check exceptions on 64-bit booke, including TLB misses from inside such exceptions. Previously, the kernel simply hung when encountering such an exception.
Scott Wood (8): powerpc/booke64: Fix exception numbers powerpc/e6500: Make TLB lock recursive powerpc/booke64: Use SPRG7 for VDSO powerpc/booke64: Use SPRG_TLB_EXFRAME on bolted handlers powerpc/booke64: Remove ints from EXCEPTION_COMMON powerpc/booke64: Add crit/mc/debug support to EXCEPTION_COMMON powerpc/booke64: Critical and machine check exception support Revert "powerpc/watchdog: Don't enable interrupt on PPC64 BookE" Tiejun Chen (2): powerpc/book3e: initialize crit/mc/dbg kernel stack pointers powerpc/book3e: store crit/mc/dbg exception thread info arch/powerpc/include/asm/exception-64e.h | 15 +- arch/powerpc/include/asm/kvm_booke_hv_asm.h | 17 +- arch/powerpc/include/asm/mmu-book3e.h | 9 +- arch/powerpc/include/asm/paca.h | 9 +- arch/powerpc/include/asm/reg.h | 13 +- arch/powerpc/kernel/asm-offsets.c | 2 +- arch/powerpc/kernel/exceptions-64e.S | 435 +++++++++++++++++++++------- arch/powerpc/kernel/setup_64.c | 20 +- arch/powerpc/kernel/vdso.c | 8 +- arch/powerpc/kernel/vdso32/getcpu.S | 2 +- arch/powerpc/kernel/vdso64/getcpu.S | 2 +- arch/powerpc/kvm/book3s_hv_rmhandlers.S | 4 +- arch/powerpc/kvm/book3s_interrupts.S | 4 +- arch/powerpc/kvm/bookehv_interrupts.S | 24 +- arch/powerpc/mm/tlb_low_64e.S | 63 ++-- arch/powerpc/mm/tlb_nohash.c | 11 + drivers/watchdog/booke_wdt.c | 8 - 17 files changed, 461 insertions(+), 185 deletions(-) -- 1.8.3.2 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev