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-rw-r--r--arch/x86/mm/pkeys.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/mm/pkeys.c b/arch/x86/mm/pkeys.c
index a2332eef66e9..4a67b922bce1 100644
--- a/arch/x86/mm/pkeys.c
+++ b/arch/x86/mm/pkeys.c
@@ -192,6 +192,10 @@ static const struct file_operations fops_init_pkru = {
static int __init create_init_pkru_value(void)
{
+ /* Do not expose the file if pkeys are not supported. */
+ if (!cpu_feature_enabled(X86_FEATURE_OSPKE))
+ return 0;
+
debugfs_create_file("init_pkru", S_IRUSR | S_IWUSR,
arch_debugfs_dir, NULL, &fops_init_pkru);
return 0;