The purpose of this serie is to enable CONFIG_VMAP_STACK on PPC32. rfc v1: initial support on 8xx rfc v2: added stack overflow detection. v3: - Stack overflow detection works, tested with LKDTM STACK_EXHAUST test - Support for book3s32 added v4: - Fixed build failure with CONFIG_KVM (patch 14) - Fixed boot failure with pmac32_defconfig+VMAP_STACK+KVM (new patch 15) - Fixed crash with altivec and fpu (patch 16) Christophe Leroy (16): powerpc/32: replace MTMSRD() by mtmsr powerpc/32: Add EXCEPTION_PROLOG_0 in head_32.h powerpc/32: save DEAR/DAR before calling handle_page_fault powerpc/32: move MSR_PR test into EXCEPTION_PROLOG_0 powerpc/32: add a macro to get and/or save DAR and DSISR on stack. powerpc/32: prepare for CONFIG_VMAP_STACK powerpc: align stack to 2 * THREAD_SIZE with VMAP_STACK powerpc/32: Add early stack overflow detection with VMAP stack. powerpc/8xx: Use alternative scratch registers in DTLB miss handler powerpc/8xx: drop exception entries for non-existing exceptions powerpc/8xx: move DataStoreTLBMiss perf handler powerpc/8xx: split breakpoint exception powerpc/8xx: Enable CONFIG_VMAP_STACK powerpc/32s: reorganise DSI handler. powerpc/32s: avoid crossing page boundary while changing SRR0/1. powerpc/32s: Activate CONFIG_VMAP_STACK arch/powerpc/include/asm/irq.h | 1 + arch/powerpc/include/asm/processor.h | 6 ++ arch/powerpc/include/asm/thread_info.h | 18 ++++ arch/powerpc/kernel/asm-offsets.c | 6 ++ arch/powerpc/kernel/entry_32.S | 55 ++++++++-- arch/powerpc/kernel/fpu.S | 3 + arch/powerpc/kernel/head_32.S | 65 ++++++++---- arch/powerpc/kernel/head_32.h | 129 ++++++++++++++++++++--- arch/powerpc/kernel/head_40x.S | 2 + arch/powerpc/kernel/head_8xx.S | 186 +++++++++++++++------------------ arch/powerpc/kernel/head_booke.h | 2 + arch/powerpc/kernel/head_fsl_booke.S | 1 + arch/powerpc/kernel/irq.c | 1 + arch/powerpc/kernel/setup_32.c | 3 +- arch/powerpc/kernel/setup_64.c | 2 +- arch/powerpc/kernel/traps.c | 15 ++- arch/powerpc/kernel/vector.S | 3 + arch/powerpc/kernel/vmlinux.lds.S | 2 +- arch/powerpc/mm/book3s32/hash_low.S | 46 +++++--- arch/powerpc/mm/book3s32/mmu.c | 9 +- arch/powerpc/perf/8xx-pmu.c | 12 ++- arch/powerpc/platforms/Kconfig.cputype | 3 + 22 files changed, 393 insertions(+), 177 deletions(-) -- 2.13.3
