x86_64: pmap: enable NX protection during bootstrap

2023-02-09 21:38:06 +00:00
parent ddb00acd31
commit d960909d1b
3 changed files with 14 additions and 0 deletions
--- a/arch/x86_64/pmap.c
+++ b/arch/x86_64/pmap.c
@@ -226,6 +226,8 @@ void pmap_bootstrap(void)
 {
 	can_use_gbpages = gigabyte_pages();
 	printk("pmap: gigabyte pages %sabled", can_use_gbpages == 1 ? "en" : "dis");
+	enable_nx();
+	printk("pmap: NX protection enabled");

 	page_size_t hugepage = PS_2M;
 	if (can_use_gbpages) {