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-rw-r--r--accel/tcg/cpu-exec.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c
index 409ec8c38c..8b4cd6c59d 100644
--- a/accel/tcg/cpu-exec.c
+++ b/accel/tcg/cpu-exec.c
@@ -1090,4 +1090,35 @@ HumanReadableText *qmp_x_query_opcount(Error **errp)
return human_readable_text_from_str(buf);
}
+#ifdef CONFIG_PROFILER
+
+int64_t dev_time;
+
+HumanReadableText *qmp_x_query_profile(Error **errp)
+{
+ g_autoptr(GString) buf = g_string_new("");
+ static int64_t last_cpu_exec_time;
+ int64_t cpu_exec_time;
+ int64_t delta;
+
+ cpu_exec_time = tcg_cpu_exec_time();
+ delta = cpu_exec_time - last_cpu_exec_time;
+
+ g_string_append_printf(buf, "async time %" PRId64 " (%0.3f)\n",
+ dev_time, dev_time / (double)NANOSECONDS_PER_SECOND);
+ g_string_append_printf(buf, "qemu time %" PRId64 " (%0.3f)\n",
+ delta, delta / (double)NANOSECONDS_PER_SECOND);
+ last_cpu_exec_time = cpu_exec_time;
+ dev_time = 0;
+
+ return human_readable_text_from_str(buf);
+}
+#else
+HumanReadableText *qmp_x_query_profile(Error **errp)
+{
+ error_setg(errp, "Internal profiler not compiled");
+ return NULL;
+}
+#endif
+
#endif /* !CONFIG_USER_ONLY */