diff options
Diffstat (limited to 'arch/riscv/mm/kasan_init.c')
| -rw-r--r-- | arch/riscv/mm/kasan_init.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/arch/riscv/mm/kasan_init.c b/arch/riscv/mm/kasan_init.c index d7189c8714a9..54294f83513d 100644 --- a/arch/riscv/mm/kasan_init.c +++ b/arch/riscv/mm/kasan_init.c @@ -17,6 +17,9 @@ asmlinkage void __init kasan_early_init(void) uintptr_t i; pgd_t *pgd = early_pg_dir + pgd_index(KASAN_SHADOW_START); + BUILD_BUG_ON(KASAN_SHADOW_OFFSET != + KASAN_SHADOW_END - (1UL << (64 - KASAN_SHADOW_SCALE_SHIFT))); + for (i = 0; i < PTRS_PER_PTE; ++i) set_pte(kasan_early_shadow_pte + i, mk_pte(virt_to_page(kasan_early_shadow_page), @@ -172,21 +175,10 @@ void __init kasan_init(void) phys_addr_t p_start, p_end; u64 i; - /* - * Populate all kernel virtual address space with kasan_early_shadow_page - * except for the linear mapping and the modules/kernel/BPF mapping. - */ - kasan_populate_early_shadow((void *)KASAN_SHADOW_START, - (void *)kasan_mem_to_shadow((void *) - VMEMMAP_END)); if (IS_ENABLED(CONFIG_KASAN_VMALLOC)) kasan_shallow_populate( (void *)kasan_mem_to_shadow((void *)VMALLOC_START), (void *)kasan_mem_to_shadow((void *)VMALLOC_END)); - else - kasan_populate_early_shadow( - (void *)kasan_mem_to_shadow((void *)VMALLOC_START), - (void *)kasan_mem_to_shadow((void *)VMALLOC_END)); /* Populate the linear mapping */ for_each_mem_range(i, &p_start, &p_end) { |