diff options
Diffstat (limited to 'arch/arm64/mm/pageattr.c')
| -rw-r--r-- | arch/arm64/mm/pageattr.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm64/mm/pageattr.c b/arch/arm64/mm/pageattr.c index 64e985eaa52d..d107c3d434e2 100644 --- a/arch/arm64/mm/pageattr.c +++ b/arch/arm64/mm/pageattr.c @@ -21,7 +21,13 @@ bool rodata_full __ro_after_init = IS_ENABLED(CONFIG_RODATA_FULL_DEFAULT_ENABLED bool can_set_direct_map(void) { - return rodata_full || debug_pagealloc_enabled(); + /* + * rodata_full, DEBUG_PAGEALLOC and KFENCE require linear map to be + * mapped at page granularity, so that it is possible to + * protect/unprotect single pages. + */ + return rodata_full || debug_pagealloc_enabled() || + IS_ENABLED(CONFIG_KFENCE); } static int change_page_range(pte_t *ptep, unsigned long addr, void *data) |