motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-02 07:13:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge remote-tracking branch 'qmp/queue/qmp' into staging

Browse source
This commit is contained in:
Anthony Liguori 2011-09-20 15:16:00 -05:00
commit 7f67d8922e
30 changed files with 292 additions and 111 deletions
Download patch file Download diff file Expand all files Collapse all files

156
vl.c
View file

@ -185,9 +185,7 @@ int mem_prealloc = 0; /* force preallocation of physical target memory */
#endif
int nb_nics;
NICInfo nd_table[MAX_NICS];
int vm_running;
int autostart;
int incoming_expected; /* Started with -incoming and waiting for incoming */
static int rtc_utc = 1;
static int rtc_date_offset = -1; /* -1 means no change */
QEMUClock *rtc_clock;
@ -322,6 +320,120 @@ static int default_driver_check(QemuOpts *opts, void *opaque)
return 0;
}
/***********************************************************/
/* QEMU state */
static RunState current_run_state = RSTATE_NO_STATE;
typedef struct {
RunState from;
RunState to;
} RunStateTransition;
static const RunStateTransition runstate_transitions_def[] = {
/* from -> to */
{ RSTATE_NO_STATE, RSTATE_RUNNING },
{ RSTATE_NO_STATE, RSTATE_IN_MIGRATE },
{ RSTATE_NO_STATE, RSTATE_PRE_LAUNCH },
{ RSTATE_DEBUG, RSTATE_RUNNING },
{ RSTATE_IN_MIGRATE, RSTATE_RUNNING },
{ RSTATE_IN_MIGRATE, RSTATE_PRE_LAUNCH },
{ RSTATE_PANICKED, RSTATE_PAUSED },
{ RSTATE_IO_ERROR, RSTATE_RUNNING },
{ RSTATE_PAUSED, RSTATE_RUNNING },
{ RSTATE_POST_MIGRATE, RSTATE_RUNNING },
{ RSTATE_PRE_LAUNCH, RSTATE_RUNNING },
{ RSTATE_PRE_LAUNCH, RSTATE_POST_MIGRATE },
{ RSTATE_PRE_MIGRATE, RSTATE_RUNNING },
{ RSTATE_PRE_MIGRATE, RSTATE_POST_MIGRATE },
{ RSTATE_RESTORE, RSTATE_RUNNING },
{ RSTATE_RUNNING, RSTATE_DEBUG },
{ RSTATE_RUNNING, RSTATE_PANICKED },
{ RSTATE_RUNNING, RSTATE_IO_ERROR },
{ RSTATE_RUNNING, RSTATE_PAUSED },
{ RSTATE_RUNNING, RSTATE_PRE_MIGRATE },
{ RSTATE_RUNNING, RSTATE_RESTORE },
{ RSTATE_RUNNING, RSTATE_SAVEVM },
{ RSTATE_RUNNING, RSTATE_SHUTDOWN },
{ RSTATE_RUNNING, RSTATE_WATCHDOG },
{ RSTATE_SAVEVM, RSTATE_RUNNING },
{ RSTATE_SHUTDOWN, RSTATE_PAUSED },
{ RSTATE_WATCHDOG, RSTATE_RUNNING },
{ RSTATE_MAX, RSTATE_MAX },
};
static bool runstate_valid_transitions[RSTATE_MAX][RSTATE_MAX];
static const char *const runstate_name_tbl[RSTATE_MAX] = {
[RSTATE_DEBUG] = "debug",
[RSTATE_IN_MIGRATE] = "incoming-migration",
[RSTATE_PANICKED] = "internal-error",
[RSTATE_IO_ERROR] = "io-error",
[RSTATE_PAUSED] = "paused",
[RSTATE_POST_MIGRATE] = "post-migrate",
[RSTATE_PRE_LAUNCH] = "prelaunch",
[RSTATE_PRE_MIGRATE] = "finish-migrate",
[RSTATE_RESTORE] = "restore-vm",
[RSTATE_RUNNING] = "running",
[RSTATE_SAVEVM] = "save-vm",
[RSTATE_SHUTDOWN] = "shutdown",
[RSTATE_WATCHDOG] = "watchdog",
};
bool runstate_check(RunState state)
{
return current_run_state == state;
}
void runstate_init(void)
{
const RunStateTransition *p;
memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
for (p = &runstate_transitions_def[0]; p->from != RSTATE_MAX; p++) {
runstate_valid_transitions[p->from][p->to] = true;
}
}
/* This function will abort() on invalid state transitions */
void runstate_set(RunState new_state)
{
if (new_state >= RSTATE_MAX ||
!runstate_valid_transitions[current_run_state][new_state]) {
fprintf(stderr, "invalid runstate transition\n");
abort();
}
current_run_state = new_state;
}
const char *runstate_as_string(void)
{
assert(current_run_state > RSTATE_NO_STATE &&
current_run_state < RSTATE_MAX);
return runstate_name_tbl[current_run_state];
}
int runstate_is_running(void)
{
return runstate_check(RSTATE_RUNNING);
}
/***********************************************************/
/* real time host monotonic timer */
@ -1145,23 +1257,23 @@ void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
g_free (e);
}
void vm_state_notify(int running, int reason)
void vm_state_notify(int running, RunState state)
{
VMChangeStateEntry *e;
trace_vm_state_notify(running, reason);
trace_vm_state_notify(running, state);
for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
e->cb(e->opaque, running, reason);
e->cb(e->opaque, running, state);
}
}
void vm_start(void)
{
if (!vm_running) {
if (!runstate_is_running()) {
cpu_enable_ticks();
vm_running = 1;
vm_state_notify(1, 0);
runstate_set(RSTATE_RUNNING);
vm_state_notify(1, RSTATE_RUNNING);
resume_all_vcpus();
monitor_protocol_event(QEVENT_RESUME, NULL);
}
@ -1182,7 +1294,7 @@ static int shutdown_requested, shutdown_signal = -1;
static pid_t shutdown_pid;
static int powerdown_requested;
static int debug_requested;
static int vmstop_requested;
static RunState vmstop_requested = RSTATE_NO_STATE;
int qemu_shutdown_requested_get(void)
{
@ -1238,11 +1350,11 @@ static int qemu_debug_requested(void)
return r;
}
static int qemu_vmstop_requested(void)
static RunState qemu_vmstop_requested(void)
{
int r = vmstop_requested;
vmstop_requested = 0;
return r;
RunState s = vmstop_requested;
vmstop_requested = RSTATE_NO_STATE;
return s;
}
void qemu_register_reset(QEMUResetHandler *func, void *opaque)
@ -1318,9 +1430,9 @@ void qemu_system_debug_request(void)
qemu_notify_event();
}
void qemu_system_vmstop_request(int reason)
void qemu_system_vmstop_request(RunState state)
{
vmstop_requested = reason;
vmstop_requested = state;
qemu_notify_event();
}
@ -1470,13 +1582,13 @@ static void main_loop(void)
#endif
if (qemu_debug_requested()) {
vm_stop(VMSTOP_DEBUG);
vm_stop(RSTATE_DEBUG);
}
if (qemu_shutdown_requested()) {
qemu_kill_report();
monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
if (no_shutdown) {
vm_stop(VMSTOP_SHUTDOWN);
vm_stop(RSTATE_SHUTDOWN);
} else
break;
}
@ -1485,6 +1597,10 @@ static void main_loop(void)
cpu_synchronize_all_states();
qemu_system_reset(VMRESET_REPORT);
resume_all_vcpus();
if (runstate_check(RSTATE_PANICKED) ||
runstate_check(RSTATE_SHUTDOWN)) {
runstate_set(RSTATE_PAUSED);
}
}
if (qemu_powerdown_requested()) {
monitor_protocol_event(QEVENT_POWERDOWN, NULL);
@ -2203,6 +2319,8 @@ int main(int argc, char **argv, char **envp)
g_mem_set_vtable(&mem_trace);
g_thread_init(NULL);
runstate_init();
init_clocks();
qemu_cache_utils_init(envp);
@ -2953,7 +3071,6 @@ int main(int argc, char **argv, char **envp)
break;
case QEMU_OPTION_incoming:
incoming = optarg;
incoming_expected = true;
break;
case QEMU_OPTION_nodefaults:
default_serial = 0;
@ -3439,6 +3556,7 @@ int main(int argc, char **argv, char **envp)
}
if (incoming) {
runstate_set(RSTATE_IN_MIGRATE);
int ret = qemu_start_incoming_migration(incoming);
if (ret < 0) {
fprintf(stderr, "Migration failed. Exit code %s(%d), exiting.\n",
@ -3447,6 +3565,8 @@ int main(int argc, char **argv, char **envp)
}
} else if (autostart) {
vm_start();
} else {
runstate_set(RSTATE_PRE_LAUNCH);
}
os_setup_post();