[Qemu-devel] [PATCH v2 1/4] vl: add qemu_system_shutdown_force()

[Stefan Hajnoczi <stefanha@redhat.com>]

The QEMU --no-shutdown option prevents guests from shutting down.  There
are several cases where shutdown should be forced, even if --no-shutdown
was given.

This patch adds an API for forcing shutdown.  This cleans up the code
and hides the extern int no_shutdown variable which is currently being
touched in various files.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 include/sysemu/sysemu.h |  2 +-
 qmp.c                   |  3 +--
 ui/sdl.c                |  3 +--
 ui/sdl2.c               |  6 ++----
 vl.c                    | 11 ++++++++---
 5 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
index d8539fd..171d7d3 100644
--- a/include/sysemu/sysemu.h
+++ b/include/sysemu/sysemu.h
@@ -58,6 +58,7 @@ void qemu_system_wakeup_request(WakeupReason reason);
 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled);
 void qemu_register_wakeup_notifier(Notifier *notifier);
 void qemu_system_shutdown_request(void);
+void qemu_system_shutdown_force(void);
 void qemu_system_powerdown_request(void);
 void qemu_register_powerdown_notifier(Notifier *notifier);
 void qemu_system_debug_request(void);
@@ -126,7 +127,6 @@ extern int max_cpus;
 extern int cursor_hide;
 extern int graphic_rotate;
 extern int no_quit;
-extern int no_shutdown;
 extern int semihosting_enabled;
 extern int old_param;
 extern int boot_menu;
diff --git a/qmp.c b/qmp.c
index 0d2553a..cd4d6a7 100644
--- a/qmp.c
+++ b/qmp.c
@@ -86,8 +86,7 @@ UuidInfo *qmp_query_uuid(Error **errp)
 
 void qmp_quit(Error **errp)
 {
-    no_shutdown = 0;
-    qemu_system_shutdown_request();
+    qemu_system_shutdown_force();
 }
 
 void qmp_stop(Error **errp)
diff --git a/ui/sdl.c b/ui/sdl.c
index 4e7f920..7c3d91c 100644
--- a/ui/sdl.c
+++ b/ui/sdl.c
@@ -791,8 +791,7 @@ static void sdl_refresh(DisplayChangeListener *dcl)
             break;
         case SDL_QUIT:
             if (!no_quit) {
-                no_shutdown = 0;
-                qemu_system_shutdown_request();
+                qemu_system_shutdown_force();
             }
             break;
         case SDL_MOUSEMOTION:
diff --git a/ui/sdl2.c b/ui/sdl2.c
index fcac87b..f392528 100644
--- a/ui/sdl2.c
+++ b/ui/sdl2.c
@@ -711,8 +711,7 @@ static void handle_windowevent(DisplayChangeListener *dcl, SDL_Event *ev)
         break;
     case SDL_WINDOWEVENT_CLOSE:
         if (!no_quit) {
-            no_shutdown = 0;
-            qemu_system_shutdown_request();
+            qemu_system_shutdown_force();
         }
         break;
     }
@@ -743,8 +742,7 @@ static void sdl_refresh(DisplayChangeListener *dcl)
             break;
         case SDL_QUIT:
             if (!no_quit) {
-                no_shutdown = 0;
-                qemu_system_shutdown_request();
+                qemu_system_shutdown_force();
             }
             break;
         case SDL_MOUSEMOTION:
diff --git a/vl.c b/vl.c
index fe451aa..c733e04 100644
--- a/vl.c
+++ b/vl.c
@@ -164,7 +164,7 @@ int acpi_enabled = 1;
 int no_hpet = 0;
 int fd_bootchk = 1;
 static int no_reboot;
-int no_shutdown = 0;
+static int no_shutdown = 0;
 int cursor_hide = 1;
 int graphic_rotate = 0;
 const char *watchdog;
@@ -1915,8 +1915,7 @@ void qemu_system_killed(int signal, pid_t pid)
 {
     shutdown_signal = signal;
     shutdown_pid = pid;
-    no_shutdown = 0;
-    qemu_system_shutdown_request();
+    qemu_system_shutdown_force();
 }
 
 void qemu_system_shutdown_request(void)
@@ -1926,6 +1925,12 @@ void qemu_system_shutdown_request(void)
     qemu_notify_event();
 }
 
+void qemu_system_shutdown_force(void)
+{
+    no_shutdown = 0;
+    qemu_system_shutdown_request();
+}
+
 static void qemu_system_powerdown(void)
 {
     qapi_event_send_powerdown(&error_abort);
-- 
1.9.3