Andrey Ryabinin <a.ryabi...@samsung.com> writes: > Introduce generic kasan_populate_zero_shadow(start, end). > This function maps kasan_zero_page to the [start, end] addresses. > > In follow on patches it will be used for ARMv8 (and maybe other > architectures) and will replace x86_64 specific populate_zero_shadow(). > > Signed-off-by: Andrey Ryabinin <a.ryabi...@samsung.com>
This assume that we can have shared pgtable_t in generic code ? Is that true for generic code ? Even if it is we may want to allow some arch to override this ? On ppc64, we store the hardware hash page table slot number in pte_t, Hence we won't be able to share pgtable_t. > --- > arch/x86/mm/kasan_init_64.c | 14 ---- > include/linux/kasan.h | 8 +++ > mm/kasan/Makefile | 2 +- > mm/kasan/kasan_init.c | 151 > ++++++++++++++++++++++++++++++++++++++++++++ > 4 files changed, 160 insertions(+), 15 deletions(-) > create mode 100644 mm/kasan/kasan_init.c > > diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c > index e1840f3..812086c 100644 > --- a/arch/x86/mm/kasan_init_64.c > +++ b/arch/x86/mm/kasan_init_64.c > @@ -12,20 +12,6 @@ > extern pgd_t early_level4_pgt[PTRS_PER_PGD]; > extern struct range pfn_mapped[E820_X_MAX]; > > -static pud_t kasan_zero_pud[PTRS_PER_PUD] __page_aligned_bss; > -static pmd_t kasan_zero_pmd[PTRS_PER_PMD] __page_aligned_bss; > -static pte_t kasan_zero_pte[PTRS_PER_PTE] __page_aligned_bss; > - > -/* -aneesh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
