This serie adds KASAN support to powerpc/32 Tested on nohash/32 (8xx) and book3s/32 (mpc832x ie 603) Changes in v3: - Removed the printk() in kasan_early_init() to avoid build failure (see https://github.com/linuxppc/issues/issues/218) - Added necessary changes in asm/book3s/32/pgtable.h to get it work on powerpc 603 family - Added a few KASAN_SANITIZE_xxx.o := n to successfully boot on powerpc 603 family Changes in v2: - Rebased. - Using __set_pte_at() to build the early table. - Worked around and got rid of the patch adding asm/page.h in asm/pgtable-types.h ==> might be fixed independently but not needed for this serie. For book3s/32 (not 603), it cannot work as is because due to HASHPTE flag, we can't use the same pagetable for several PGD entries. Christophe Leroy (3): powerpc/mm: prepare kernel for KAsan on PPC32 powerpc/32: Move early_init() in a separate file powerpc/32: Add KASAN support arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/book3s/32/pgtable.h | 2 + arch/powerpc/include/asm/kasan.h | 24 ++++++++++ arch/powerpc/include/asm/nohash/32/pgtable.h | 2 + arch/powerpc/include/asm/ppc_asm.h | 5 ++ arch/powerpc/include/asm/setup.h | 5 ++ arch/powerpc/include/asm/string.h | 14 ++++++ arch/powerpc/kernel/Makefile | 6 ++- arch/powerpc/kernel/cputable.c | 4 +- arch/powerpc/kernel/early_32.c | 36 ++++++++++++++ arch/powerpc/kernel/prom_init_check.sh | 1 + arch/powerpc/kernel/setup-common.c | 2 + arch/powerpc/kernel/setup_32.c | 31 ++---------- arch/powerpc/lib/Makefile | 3 ++ arch/powerpc/lib/copy_32.S | 9 ++-- arch/powerpc/mm/Makefile | 3 ++ arch/powerpc/mm/dump_linuxpagetables.c | 8 ++++ arch/powerpc/mm/kasan_init.c | 72 ++++++++++++++++++++++++++++ arch/powerpc/mm/mem.c | 4 ++ 19 files changed, 198 insertions(+), 34 deletions(-) create mode 100644 arch/powerpc/include/asm/kasan.h create mode 100644 arch/powerpc/kernel/early_32.c create mode 100644 arch/powerpc/mm/kasan_init.c -- 2.13.3
