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-rw-r--r--arch/x86/kernel/entry_64.S4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 37e895a1c74d..e13329d800c8 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -9,6 +9,8 @@
 /*
  * entry.S contains the system-call and fault low-level handling routines.
  *
+ * Some of this is documented in Documentation/x86/entry_64.txt
+ *
  * NOTE: This code handles signal-recognition, which happens every time
  * after an interrupt and after each system call.
  *
@@ -1109,6 +1111,8 @@ zeroentry spurious_interrupt_bug do_spurious_interrupt_bug
 zeroentry coprocessor_error do_coprocessor_error
 errorentry alignment_check do_alignment_check
 zeroentry simd_coprocessor_error do_simd_coprocessor_error
+zeroentry emulate_vsyscall do_emulate_vsyscall
+
 
 	/* Reload gs selector with exception handling */
 	/* edi:  new selector */