Messages in this thread | | | From | Christophe Leroy <> | Subject | [PATCH v2 0/3] powerpc/mm: Fix kernel protection and implement CONFIG_DEBUG_RODATA on PPC32 | Date | Fri, 21 Apr 2017 15:02:01 +0200 (CEST) |
| |
This patch set implements CONFIG_DEBUG_RODATA on Powerpc32 after fixing a few issues related to kernel code page protection.
Changes in v2: Instead of making the entire kernel RW to patch code in ftrace, we now only change the rights on the page to be modified
Christophe Leroy (3): powerpc/mm: Ensure change_page_attr() doesn't invalidate pinned TLBs powerpc/mm: Fix kernel RAM protection after freeing unused memory on PPC32 powerpc/mm: Implement CONFIG_DEBUG_RODATA on PPC32
arch/powerpc/Kconfig.debug | 11 +++++++ arch/powerpc/include/asm/pgtable.h | 8 ++++++ arch/powerpc/kernel/ftrace.c | 8 ++++-- arch/powerpc/mm/init_32.c | 3 +- arch/powerpc/mm/mem.c | 1 + arch/powerpc/mm/mmu_decl.h | 3 ++ arch/powerpc/mm/pgtable_32.c | 59 +++++++++++++++++++++++++++++++++----- 7 files changed, 82 insertions(+), 11 deletions(-)
-- 2.12.0
| |