qtest: don't report signals if qtest driver enabled

qtest driver always uses signals to kill qemu
no need to report it, whatever the accelerator state.

Add API to detect qtest driver, and suppress reporting
signals in this case.

Reported-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>

3 files changed, 8 insertions, 1 deletions

diff --git a/include/sysemu/qtest.h b/include/sysemu/qtest.h
index 112a661ac4..6aca8e4c1f 100644
--- a/include/sysemu/qtest.h
+++ b/include/sysemu/qtest.h
@@ -23,6 +23,8 @@ static inline bool qtest_enabled(void)
     return qtest_allowed;
 }
 
+bool qtest_driver(void);
+
 int qtest_init_accel(void);
 void qtest_init(const char *qtest_chrdev, const char *qtest_log);
 
diff --git a/qtest.c b/qtest.c
index dcf1301229..a738afc724 100644
--- a/qtest.c
+++ b/qtest.c
@@ -528,3 +528,8 @@ void qtest_init(const char *qtest_chrdev, const char *qtest_log)
 
     qtest_chr = chr;
 }
+
+bool qtest_driver(void)
+{
+    return qtest_chr;
+}
diff --git a/vl.c b/vl.c
index 383be1b617..a7b00cdd37 100644
--- a/vl.c
+++ b/vl.c
@@ -1750,7 +1750,7 @@ static int qemu_shutdown_requested(void)
 
 static void qemu_kill_report(void)
 {
-    if (!qtest_enabled() && shutdown_signal != -1) {
+    if (!qtest_driver() && shutdown_signal != -1) {
         fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
         if (shutdown_pid == 0) {
             /* This happens for eg ^C at the terminal, so it's worth