It should be a matter of allowing the transition POSTMIGRATE ->
FINISH_MIGRATE, but it turns out that the VM won't do the
transition the second time because it's already stopped.
So this commit also adds vm_stop_force_state() which performs
the transition even if the VM is already stopped.
While there also allow other states to migrate.
Signed-off-by: Luiz Capitulino<address@hidden>
---
cpus.c | 11 +++++++++++
migration.c | 2 +-
sysemu.h | 1 +
vl.c | 9 +++++++--
4 files changed, 20 insertions(+), 3 deletions(-)
diff --git a/cpus.c b/cpus.c
index 8978779..5f5b763 100644
--- a/cpus.c
+++ b/cpus.c
@@ -887,6 +887,17 @@ void vm_stop(RunState state)
do_vm_stop(state);
}
+/* does a state transition even if the VM is already stopped,
+ current state is forgotten forever */
+void vm_stop_force_state(RunState state)
+{
+ if (runstate_is_running()) {
+ vm_stop(state);
+ } else {
+ runstate_set(state);
+ }
+}
+
static int tcg_cpu_exec(CPUState *env)
{
int ret;
diff --git a/migration.c b/migration.c
index 77a51ad..62b74a6 100644
--- a/migration.c
+++ b/migration.c
@@ -375,7 +375,7 @@ void migrate_fd_put_ready(void *opaque)
int old_vm_running = runstate_is_running();
DPRINTF("done iterating\n");
- vm_stop(RUN_STATE_FINISH_MIGRATE);
+ vm_stop_force_state(RUN_STATE_FINISH_MIGRATE);
if ((qemu_savevm_state_complete(s->mon, s->file))< 0) {
if (old_vm_running) {
diff --git a/sysemu.h b/sysemu.h
index a889d90..7d288f8 100644
--- a/sysemu.h
+++ b/sysemu.h
@@ -35,6 +35,7 @@ void vm_state_notify(int running, RunState state);
void vm_start(void);
void vm_stop(RunState state);
+void vm_stop_force_state(RunState state);
void qemu_system_reset_request(void);
void qemu_system_shutdown_request(void);
diff --git a/vl.c b/vl.c
index 2e991fc..103a0df 100644
--- a/vl.c
+++ b/vl.c
@@ -339,17 +339,20 @@ static const RunStateTransition
runstate_transitions_def[] = {
{ RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
{ RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
+ { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
{ RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
+ { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
{ RUN_STATE_PAUSED, RUN_STATE_RUNNING },
- { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
+ { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
{ RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
+ { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
{ RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
+ { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
{ RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
- { RUN_STATE_PRELAUNCH, RUN_STATE_POSTMIGRATE },
{ RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
{ RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
@@ -369,8 +372,10 @@ static const RunStateTransition runstate_transitions_def[]
= {
{ RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
{ RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
+ { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
{ RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
+ { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
{ RUN_STATE_MAX, RUN_STATE_MAX },
};