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-rw-r--r--hmp-commands.hx7
1 files changed, 4 insertions, 3 deletions
diff --git a/hmp-commands.hx b/hmp-commands.hx
index 98b4b1a82c..848efee5d1 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -281,9 +281,10 @@ ETEXI
 
     {
         .name       = "trace-event",
-        .args_type  = "name:s,option:b",
-        .params     = "name on|off",
-        .help       = "changes status of a specific trace event",
+        .args_type  = "name:s,option:b,vcpu:i?",
+        .params     = "name on|off [vcpu]",
+        .help       = "changes status of a specific trace event "
+                      "(vcpu: vCPU to set, default is all)",
         .mhandler.cmd = hmp_trace_event,
         .command_completion = trace_event_completion,
     },