Messages in this thread | | | From | Christophe Leroy <> | Subject | [PATCH v3 0/5] powerpc/mm: Fix kernel protection and implement STRICT_KERNEL_RWX on PPC32 | Date | Wed, 2 Aug 2017 15:50:58 +0200 (CEST) |
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This patch set implements STRICT_KERNEL_RWX on Powerpc32 after fixing a few issues related to kernel code page protection.
At the end we take the opportunity to get rid of some unneccessary/outdated fixmap stuff.
Changes from v2 to v3: * Rebased on latest linux-powerpc/merge branch * Function remap_init_ram() renamed mark_initmem_nx() to match new PPC64 implementation
Changes from v1 to v2: * Rebased on latest linux-next following including of STRICT_KERNEL_RWX for PPC64 * Removed from the serie the two patches already applied.
Christophe Leroy (5): 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 STRICT_KERNEL_RWX on PPC32 powerpc/mm: declare some local functions static powerpc/mm: Simplify __set_fixmap()
arch/powerpc/Kconfig | 2 +- arch/powerpc/include/asm/book3s/32/pgtable.h | 3 -- arch/powerpc/include/asm/fixmap.h | 10 +++-- arch/powerpc/include/asm/nohash/32/pgtable.h | 3 -- arch/powerpc/include/asm/pgtable.h | 2 +- arch/powerpc/kernel/vmlinux.lds.S | 2 +- arch/powerpc/mm/init_32.c | 6 +++ arch/powerpc/mm/pgtable_32.c | 66 ++++++++++++++++++---------- 8 files changed, 58 insertions(+), 36 deletions(-)
-- 2.13.3
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