qmp: generalize watchdog-set-action to -no-reboot/-no-shutdown

Add a QMP command to allow for the behaviors specified by the
-no-reboot and -no-shutdown command line option to be set at runtime.
The new command is named set-action and takes optional arguments, named
after an event, that provide a corresponding action to take.

Example:

-> { "execute": "set-action",
     "arguments": {
	"reboot": "none",
	"shutdown": "poweroff",
	"watchdog": "debug" } }
<- { "return": {} }

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
Message-Id: <1607705564-26264-4-git-send-email-alejandro.j.jimenez@oracle.com>
[Split the series differently, with -action based on the QMP command. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/ui/sdl2.c b/ui/sdl2.c
index a578017268..5e49709283 100644
--- a/ui/sdl2.c
+++ b/ui/sdl2.c
@@ -30,6 +30,7 @@
 #include "ui/input.h"
 #include "ui/sdl2.h"
 #include "sysemu/runstate.h"
+#include "sysemu/runstate-action.h"
 #include "sysemu/sysemu.h"
 #include "ui/win32-kbd-hook.h"
 
@@ -606,7 +607,7 @@ static void handle_windowevent(SDL_Event *ev)
                 allow_close = false;
             }
             if (allow_close) {
-                no_shutdown = 0;
+                shutdown_action = SHUTDOWN_ACTION_POWEROFF;
                 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI);
             }
         } else {
@@ -653,7 +654,7 @@ void sdl2_poll_events(struct sdl2_console *scon)
                 allow_close = false;
             }
             if (allow_close) {
-                no_shutdown = 0;
+                shutdown_action = SHUTDOWN_ACTION_POWEROFF;
                 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI);
             }
             break;