1 files changed, 6 insertions, 0 deletions

diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index b9b67166f9de..fbc097a085ca 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -872,6 +872,12 @@ void __init trap_init(void)
         set_bit(SYSCALL_VECTOR, used_vectors);
 #endif
 
+#ifdef CONFIG_X86_64
+        BUG_ON(test_bit(VSYSCALL_EMU_VECTOR, used_vectors));
+        set_system_intr_gate(VSYSCALL_EMU_VECTOR, &emulate_vsyscall);
+        set_bit(VSYSCALL_EMU_VECTOR, used_vectors);
+#endif
+
         /*
          * Should be a barrier for any external CPU state:
          */