diff options
Diffstat (limited to 'arch/x86/mm/kasan_init_64.c')
| -rw-r--r-- | arch/x86/mm/kasan_init_64.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c index 980dbebd0ca7..e3e77527f8df 100644 --- a/arch/x86/mm/kasan_init_64.c +++ b/arch/x86/mm/kasan_init_64.c @@ -2,10 +2,8 @@ #define DISABLE_BRANCH_PROFILING #define pr_fmt(fmt) "kasan: " fmt -#ifdef CONFIG_X86_5LEVEL -/* Too early to use cpu_feature_enabled() */ -#define pgtable_l5_enabled __pgtable_l5_enabled -#endif +/* cpu_feature_enabled() cannot be used this early */ +#define USE_EARLY_PGTABLE_L5 #include <linux/bootmem.h> #include <linux/kasan.h> @@ -182,7 +180,7 @@ static void __init clear_pgds(unsigned long start, * With folded p4d, pgd_clear() is nop, use p4d_clear() * instead. */ - if (pgtable_l5_enabled) + if (pgtable_l5_enabled()) pgd_clear(pgd); else p4d_clear(p4d_offset(pgd, start)); @@ -197,7 +195,7 @@ static inline p4d_t *early_p4d_offset(pgd_t *pgd, unsigned long addr) { unsigned long p4d; - if (!pgtable_l5_enabled) + if (!pgtable_l5_enabled()) return (p4d_t *)pgd; p4d = __pa_nodebug(pgd_val(*pgd)) & PTE_PFN_MASK; @@ -284,7 +282,7 @@ void __init kasan_early_init(void) for (i = 0; i < PTRS_PER_PUD; i++) kasan_zero_pud[i] = __pud(pud_val); - for (i = 0; pgtable_l5_enabled && i < PTRS_PER_P4D; i++) + for (i = 0; pgtable_l5_enabled() && i < PTRS_PER_P4D; i++) kasan_zero_p4d[i] = __p4d(p4d_val); kasan_map_early_shadow(early_top_pgt); @@ -315,7 +313,7 @@ void __init kasan_init(void) * bunch of things like kernel code, modules, EFI mapping, etc. * We need to take extra steps to not overwrite them. */ - if (pgtable_l5_enabled) { + if (pgtable_l5_enabled()) { void *ptr; ptr = (void *)pgd_page_vaddr(*pgd_offset_k(KASAN_SHADOW_END)); |