diff options
Diffstat (limited to 'arch/x86/mm/pageattr.c')
| -rw-r--r-- | arch/x86/mm/pageattr.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 09a140ca7be8..1d4eb93d333c 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -1085,12 +1085,18 @@ EXPORT_SYMBOL(set_memory_array_wb); int set_memory_x(unsigned long addr, int numpages) { + if (!(__supported_pte_mask & _PAGE_NX)) + return 0; + return change_page_attr_clear(&addr, numpages, __pgprot(_PAGE_NX), 0); } EXPORT_SYMBOL(set_memory_x); int set_memory_nx(unsigned long addr, int numpages) { + if (!(__supported_pte_mask & _PAGE_NX)) + return 0; + return change_page_attr_set(&addr, numpages, __pgprot(_PAGE_NX), 0); } EXPORT_SYMBOL(set_memory_nx); |