target-arm: Add AArch32 FP VCVTA, VCVTN, VCVTP and VCVTM

[qemu.git] / migration.c

diff --git a/migration.c b/migration.c
index 1402fa7680faf788db47a1d0e60e00e2d348da55..7235c23ffe0ea90b5c5e54d6941e1f9ce504111d 100644 (file)
--- a/migration.c
+++ b/migration.c
@@ -14,6 +14,7 @@
  */
 
 #include "qemu-common.h"
+#include "qemu/main-loop.h"
 #include "migration/migration.h"
 #include "monitor/monitor.h"
 #include "migration/qemu-file.h"
@@ -39,6 +40,7 @@ enum {
     MIG_STATE_ERROR = -1,
     MIG_STATE_NONE,
     MIG_STATE_SETUP,
+    MIG_STATE_CANCELLING,
     MIG_STATE_CANCELLED,
     MIG_STATE_ACTIVE,
     MIG_STATE_COMPLETED,
@@ -149,6 +151,7 @@ MigrationCapabilityStatusList *qmp_query_migrate_capabilities(Error **errp)
     MigrationState *s = migrate_get_current();
     int i;
 
+    caps = NULL; /* silence compiler warning */
     for (i = 0; i < MIGRATION_CAPABILITY_MAX; i++) {
         if (head == NULL) {
             head = g_malloc0(sizeof(*caps));
@@ -194,10 +197,11 @@ MigrationInfo *qmp_query_migrate(Error **errp)
         info->has_total_time = false;
         break;
     case MIG_STATE_ACTIVE:
+    case MIG_STATE_CANCELLING:
         info->has_status = true;
         info->status = g_strdup("active");
         info->has_total_time = true;
-        info->total_time = qemu_get_clock_ms(rt_clock)
+        info->total_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME)
             - s->total_time;
         info->has_expected_downtime = true;
         info->expected_downtime = s->expected_downtime;
@@ -280,6 +284,13 @@ void qmp_migrate_set_capabilities(MigrationCapabilityStatusList *params,
 
 /* shared migration helpers */
 
+static void migrate_set_state(MigrationState *s, int old_state, int new_state)
+{
+    if (atomic_cmpxchg(&s->state, old_state, new_state) == new_state) {
+        trace_migrate_set_state(new_state);
+    }
+}
+
 static void migrate_fd_cleanup(void *opaque)
 {
     MigrationState *s = opaque;
@@ -301,18 +312,14 @@ static void migrate_fd_cleanup(void *opaque)
 
     if (s->state != MIG_STATE_COMPLETED) {
         qemu_savevm_state_cancel();
+        if (s->state == MIG_STATE_CANCELLING) {
+            migrate_set_state(s, MIG_STATE_CANCELLING, MIG_STATE_CANCELLED);
+        }
     }
 
     notifier_list_notify(&migration_state_notifiers, s);
 }
 
-static void migrate_set_state(MigrationState *s, int old_state, int new_state)
-{
-    if (atomic_cmpxchg(&s->state, old_state, new_state) == new_state) {
-        trace_migrate_set_state(new_state);
-    }
-}
-
 void migrate_fd_error(MigrationState *s)
 {
     DPRINTF("setting error state\n");
@@ -324,9 +331,16 @@ void migrate_fd_error(MigrationState *s)
 
 static void migrate_fd_cancel(MigrationState *s)
 {
+    int old_state ;
     DPRINTF("cancelling migration\n");
 
-    migrate_set_state(s, s->state, MIG_STATE_CANCELLED);
+    do {
+        old_state = s->state;
+        if (old_state != MIG_STATE_SETUP && old_state != MIG_STATE_ACTIVE) {
+            break;
+        }
+        migrate_set_state(s, old_state, MIG_STATE_CANCELLING);
+    } while (s->state != MIG_STATE_CANCELLING);
 }
 
 void add_migration_state_change_notifier(Notifier *notify)
@@ -375,7 +389,7 @@ static MigrationState *migrate_init(const MigrationParams *params)
     s->state = MIG_STATE_SETUP;
     trace_migrate_set_state(MIG_STATE_SETUP);
 
-    s->total_time = qemu_get_clock_ms(rt_clock);
+    s->total_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
     return s;
 }
 
@@ -403,7 +417,8 @@ void qmp_migrate(const char *uri, bool has_blk, bool blk,
     params.blk = has_blk && blk;
     params.shared = has_inc && inc;
 
-    if (s->state == MIG_STATE_ACTIVE || s->state == MIG_STATE_SETUP) {
+    if (s->state == MIG_STATE_ACTIVE || s->state == MIG_STATE_SETUP ||
+        s->state == MIG_STATE_CANCELLING) {
         error_set(errp, QERR_MIGRATION_ACTIVE);
         return;
     }
@@ -435,6 +450,7 @@ void qmp_migrate(const char *uri, bool has_blk, bool blk,
 #endif
     } else {
         error_set(errp, QERR_INVALID_PARAMETER_VALUE, "uri", "a valid migration protocol");
+        s->state = MIG_STATE_ERROR;
         return;
     }
 
@@ -544,8 +560,8 @@ int64_t migrate_xbzrle_cache_size(void)
 static void *migration_thread(void *opaque)
 {
     MigrationState *s = opaque;
-    int64_t initial_time = qemu_get_clock_ms(rt_clock);
-    int64_t setup_start = qemu_get_clock_ms(host_clock);
+    int64_t initial_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
+    int64_t setup_start = qemu_clock_get_ms(QEMU_CLOCK_HOST);
     int64_t initial_bytes = 0;
     int64_t max_size = 0;
     int64_t start_time = initial_time;
@@ -554,7 +570,7 @@ static void *migration_thread(void *opaque)
     DPRINTF("beginning savevm\n");
     qemu_savevm_state_begin(s->file, &s->params);
 
-    s->setup_time = qemu_get_clock_ms(host_clock) - setup_start;
+    s->setup_time = qemu_clock_get_ms(QEMU_CLOCK_HOST) - setup_start;
     migrate_set_state(s, MIG_STATE_SETUP, MIG_STATE_ACTIVE);
 
     DPRINTF("setup complete\n");
@@ -566,7 +582,8 @@ static void *migration_thread(void *opaque)
         if (!qemu_file_rate_limit(s->file)) {
             DPRINTF("iterate\n");
             pending_size = qemu_savevm_state_pending(s->file, max_size);
-            DPRINTF("pending size %lu max %lu\n", pending_size, max_size);
+            DPRINTF("pending size %" PRIu64 " max %" PRIu64 "\n",
+                    pending_size, max_size);
             if (pending_size && pending_size >= max_size) {
                 qemu_savevm_state_iterate(s->file);
             } else {
@@ -574,13 +591,13 @@ static void *migration_thread(void *opaque)
 
                 DPRINTF("done iterating\n");
                 qemu_mutex_lock_iothread();
-                start_time = qemu_get_clock_ms(rt_clock);
+                start_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
                 qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
                 old_vm_running = runstate_is_running();
 
                 ret = vm_stop_force_state(RUN_STATE_FINISH_MIGRATE);
                 if (ret >= 0) {
-                    qemu_file_set_rate_limit(s->file, INT_MAX);
+                    qemu_file_set_rate_limit(s->file, INT64_MAX);
                     qemu_savevm_state_complete(s->file);
                 }
                 qemu_mutex_unlock_iothread();
@@ -601,7 +618,7 @@ static void *migration_thread(void *opaque)
             migrate_set_state(s, MIG_STATE_ACTIVE, MIG_STATE_ERROR);
             break;
         }
-        current_time = qemu_get_clock_ms(rt_clock);
+        current_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
         if (current_time >= initial_time + BUFFER_DELAY) {
             uint64_t transferred_bytes = qemu_ftell(s->file) - initial_bytes;
             uint64_t time_spent = current_time - initial_time;
@@ -632,7 +649,7 @@ static void *migration_thread(void *opaque)
 
     qemu_mutex_lock_iothread();
     if (s->state == MIG_STATE_COMPLETED) {
-        int64_t end_time = qemu_get_clock_ms(rt_clock);
+        int64_t end_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
         s->total_time = end_time - s->total_time;
         s->downtime = end_time - start_time;
         runstate_set(RUN_STATE_POSTMIGRATE);