notifier will be used for signaling powerdown request to guest in more general way and intended to replace very specific qemu_irq_rise(qemu_system_powerdown) and will allow to remove global variable qemu_system_powerdown.
v2: do not make qemu_system_powerdown static, spotted-by: Paolo Bonzini <pbonz...@redhat.com> Signed-off-by: Igor Mammedov <imamm...@redhat.com> --- sysemu.h | 1 + vl.c | 15 ++++++++++++++- 2 files changed, 15 insertions(+), 1 deletion(-) diff --git a/sysemu.h b/sysemu.h index f765821..eb9a750 100644 --- a/sysemu.h +++ b/sysemu.h @@ -53,6 +53,7 @@ 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_powerdown_request(void); +void qemu_register_powerdown_notifier(Notifier *notifier); void qemu_system_debug_request(void); void qemu_system_vmstop_request(RunState reason); int qemu_shutdown_requested_get(void); diff --git a/vl.c b/vl.c index 7c577fa..8dc4b4f 100644 --- a/vl.c +++ b/vl.c @@ -1355,6 +1355,8 @@ static int powerdown_requested; static int debug_requested; static int suspend_requested; static int wakeup_requested; +static NotifierList powerdown_notifiers = + NOTIFIER_LIST_INITIALIZER(powerdown_notifiers); static NotifierList suspend_notifiers = NOTIFIER_LIST_INITIALIZER(suspend_notifiers); static NotifierList wakeup_notifiers = @@ -1563,12 +1565,23 @@ void qemu_system_shutdown_request(void) qemu_notify_event(); } +static void qemu_system_powerdown(void) +{ + monitor_protocol_event(QEVENT_POWERDOWN, NULL); + notifier_list_notify(&powerdown_notifiers, NULL); +} + void qemu_system_powerdown_request(void) { powerdown_requested = 1; qemu_notify_event(); } +void qemu_register_powerdown_notifier(Notifier *notifier) +{ + notifier_list_add(&powerdown_notifiers, notifier); +} + void qemu_system_debug_request(void) { debug_requested = 1; @@ -1619,7 +1632,7 @@ static bool main_loop_should_exit(void) monitor_protocol_event(QEVENT_WAKEUP, NULL); } if (qemu_powerdown_requested()) { - monitor_protocol_event(QEVENT_POWERDOWN, NULL); + qemu_system_powerdown(); qemu_irq_raise(qemu_system_powerdown); } if (qemu_vmstop_requested(&r)) { -- 1.7.11.4