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-rw-r--r--arch/x86/kernel/head_32.S6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index af1112980dd4..54cdbd2003fe 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -389,6 +389,12 @@ default_entry:
/* Make changes effective */
wrmsr
+ /*
+ * And make sure that all the mappings we set up have NX set from
+ * the beginning.
+ */
+ orl $(1 << (_PAGE_BIT_NX - 32)), pa(__supported_pte_mask + 4)
+
enable_paging:
/*