[Qemu-devel] [PATCH v13 4/8] add a new runstate: RUN_STATE_GUEST_PANICKED

[Hu Tao]

The guest will be in this state when it is panicked.

Signed-off-by: Wen Congyang <address@hidden>
Signed-off-by: Hu Tao <address@hidden>
---
 migration.c      |  1 +
 qapi-schema.json |  6 +++++-
 qmp.c            |  3 ++-
 vl.c             | 11 ++++++++++-
 4 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/migration.c b/migration.c
index c29830e..fa17b82 100644
--- a/migration.c
+++ b/migration.c
@@ -698,6 +698,7 @@ static void *buffered_file_thread(void *opaque)
                 int64_t start_time, end_time;
 
                 DPRINTF("done iterating\n");
+                save_run_state();
                 start_time = qemu_get_clock_ms(rt_clock);
                 qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
                 if (old_vm_running) {
diff --git a/qapi-schema.json b/qapi-schema.json
index 28b070f..8f1d138 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -174,11 +174,15 @@
 # @suspended: guest is suspended (ACPI S3)
 #
 # @watchdog: the watchdog action is configured to pause and has been triggered
+#
+# @guest-panicked: the panicked action is configured to pause and has been
+# triggered.
 ##
 { 'enum': 'RunState',
   'data': [ 'debug', 'inmigrate', 'internal-error', 'io-error', 'paused',
             'postmigrate', 'prelaunch', 'finish-migrate', 'restore-vm',
-            'running', 'save-vm', 'shutdown', 'suspended', 'watchdog' ] }
+            'running', 'save-vm', 'shutdown', 'suspended', 'watchdog',
+            'guest-panicked' ] }
 
 ##
 # @SnapshotInfo
diff --git a/qmp.c b/qmp.c
index 5f1bed1..f5027f6 100644
--- a/qmp.c
+++ b/qmp.c
@@ -150,7 +150,8 @@ void qmp_cont(Error **errp)
     Error *local_err = NULL;
 
     if (runstate_check(RUN_STATE_INTERNAL_ERROR) ||
-               runstate_check(RUN_STATE_SHUTDOWN)) {
+            runstate_check(RUN_STATE_SHUTDOWN) ||
+            runstate_check(RUN_STATE_GUEST_PANICKED)) {
         error_set(errp, QERR_RESET_REQUIRED);
         return;
     } else if (runstate_check(RUN_STATE_SUSPENDED)) {
diff --git a/vl.c b/vl.c
index 3d08e1a..51d4922 100644
--- a/vl.c
+++ b/vl.c
@@ -536,6 +536,7 @@ static const RunStateTransition runstate_transitions_def[] 
= {
 
     { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
     { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
+    { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
 
     { RUN_STATE_INTERNAL_ERROR, RUN_STATE_RUNNING },
     { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
@@ -549,6 +550,7 @@ static const RunStateTransition runstate_transitions_def[] 
= {
     { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
     { RUN_STATE_POSTMIGRATE, RUN_STATE_PAUSED },
     { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
+    { RUN_STATE_POSTMIGRATE, RUN_STATE_GUEST_PANICKED },
 
     { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
     { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
@@ -559,6 +561,7 @@ static const RunStateTransition runstate_transitions_def[] 
= {
 
     { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
     { RUN_STATE_RESTORE_VM, RUN_STATE_PAUSED },
+    { RUN_STATE_RESTORE_VM, RUN_STATE_GUEST_PANICKED },
 
     { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
     { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
@@ -569,6 +572,7 @@ static const RunStateTransition runstate_transitions_def[] 
= {
     { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
     { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
     { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
+    { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
 
     { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
 
@@ -583,6 +587,10 @@ static const RunStateTransition runstate_transitions_def[] 
= {
     { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
     { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
 
+    { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
+    { RUN_STATE_GUEST_PANICKED, RUN_STATE_PAUSED },
+    { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
+
     { RUN_STATE_MAX, RUN_STATE_MAX },
 };
 
@@ -2001,7 +2009,8 @@ static bool main_loop_should_exit(void)
         qemu_system_reset(VMRESET_REPORT);
         resume_all_vcpus();
         if (runstate_check(RUN_STATE_INTERNAL_ERROR) ||
-            runstate_check(RUN_STATE_SHUTDOWN)) {
+            runstate_check(RUN_STATE_SHUTDOWN) ||
+            runstate_check(RUN_STATE_GUEST_PANICKED)) {
             bdrv_iterate(iostatus_bdrv_it, NULL);
             vm_start();
         }
-- 
1.8.1.4