From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59522) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gKmsR-0005UW-F7 for qemu-devel@nongnu.org; Thu, 08 Nov 2018 11:09:52 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gKmsO-0000vP-Qf for qemu-devel@nongnu.org; Thu, 08 Nov 2018 11:09:51 -0500 Received: from userp2130.oracle.com ([156.151.31.86]:44060) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gKmsO-0000qd-Bj for qemu-devel@nongnu.org; Thu, 08 Nov 2018 11:09:48 -0500 From: Yuval Shaia Date: Thu, 8 Nov 2018 18:08:15 +0200 Message-Id: <20181108160818.5485-20-yuval.shaia@oracle.com> In-Reply-To: <20181108160818.5485-1-yuval.shaia@oracle.com> References: <20181108160818.5485-1-yuval.shaia@oracle.com> Subject: [Qemu-devel] [PATCH v2 19/22] vl: Introduce shutdown_notifiers List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: yuval.shaia@oracle.com, marcel.apfelbaum@gmail.com, dmitry.fleytman@gmail.com, jasowang@redhat.com, eblake@redhat.com, armbru@redhat.com, pbonzini@redhat.com, qemu-devel@nongnu.org, shamir.rabinovitch@oracle.com Notifier will be used for signaling shutdown event to inform system is shutdown. This will allow devices and other component to run some cleanup code needed before VM is shutdown. Signed-off-by: Yuval Shaia --- include/sysemu/sysemu.h | 1 + vl.c | 15 ++++++++++++++- 2 files changed, 15 insertions(+), 1 deletion(-) diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h index 8d6095d98b..0d15f16492 100644 --- a/include/sysemu/sysemu.h +++ b/include/sysemu/sysemu.h @@ -80,6 +80,7 @@ void qemu_register_wakeup_notifier(Notifier *notifier); void qemu_system_shutdown_request(ShutdownCause reason); void qemu_system_powerdown_request(void); void qemu_register_powerdown_notifier(Notifier *notifier); +void qemu_register_shutdown_notifier(Notifier *notifier); void qemu_system_debug_request(void); void qemu_system_vmstop_request(RunState reason); void qemu_system_vmstop_request_prepare(void); diff --git a/vl.c b/vl.c index 1fcacc5caa..c5ba750f3e 100644 --- a/vl.c +++ b/vl.c @@ -1578,6 +1578,8 @@ static NotifierList suspend_notifiers = NOTIFIER_LIST_INITIALIZER(suspend_notifiers); static NotifierList wakeup_notifiers = NOTIFIER_LIST_INITIALIZER(wakeup_notifiers); +static NotifierList shutdown_notifiers = + NOTIFIER_LIST_INITIALIZER(shutdown_notifiers); static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE); ShutdownCause qemu_shutdown_requested_get(void) @@ -1809,6 +1811,12 @@ static void qemu_system_powerdown(void) notifier_list_notify(&powerdown_notifiers, NULL); } +static void qemu_system_shutdown(bool by_guest) +{ + qapi_event_send_shutdown(by_guest); + notifier_list_notify(&shutdown_notifiers, NULL); +} + void qemu_system_powerdown_request(void) { trace_qemu_system_powerdown_request(); @@ -1821,6 +1829,11 @@ void qemu_register_powerdown_notifier(Notifier *notifier) notifier_list_add(&powerdown_notifiers, notifier); } +void qemu_register_shutdown_notifier(Notifier *notifier) +{ + notifier_list_add(&shutdown_notifiers, notifier); +} + void qemu_system_debug_request(void) { debug_requested = 1; @@ -1848,7 +1861,7 @@ static bool main_loop_should_exit(void) request = qemu_shutdown_requested(); if (request) { qemu_kill_report(); - qapi_event_send_shutdown(shutdown_caused_by_guest(request)); + qemu_system_shutdown(shutdown_caused_by_guest(request)); if (no_shutdown) { vm_stop(RUN_STATE_SHUTDOWN); } else { -- 2.17.2