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-rw-r--r--qemu-options.hx12
1 files changed, 9 insertions, 3 deletions
diff --git a/qemu-options.hx b/qemu-options.hx
index c6edb4047b..d2c1e95bcf 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -4303,16 +4303,22 @@ HXCOMM Deprecated by -accel tcg
 DEF("no-kvm", 0, QEMU_OPTION_no_kvm, "", QEMU_ARCH_I386)
 
 DEF("msg", HAS_ARG, QEMU_OPTION_msg,
-    "-msg timestamp[=on|off]\n"
+    "-msg [timestamp[=on|off]][,guest-name=[on|off]]\n"
     "                control error message format\n"
-    "                timestamp=on enables timestamps (default: off)\n",
+    "                timestamp=on enables timestamps (default: off)\n"
+    "                guest-name=on enables guest name prefix but only if\n"
+    "                              -name guest option is set (default: off)\n",
     QEMU_ARCH_ALL)
 SRST
-``-msg timestamp[=on|off]``
+``-msg [timestamp[=on|off]][,guest-name[=on|off]]``
     Control error message format.
 
     ``timestamp=on|off``
         Prefix messages with a timestamp. Default is off.
+
+    ``guest-name=on|off``
+        Prefix messages with guest name but only if -name guest option is set
+        otherwise the option is ignored. Default is off.
 ERST
 
 DEF("dump-vmstate", HAS_ARG, QEMU_OPTION_dump_vmstate,