virtio-pci: Disable virtio-ioeventfd when !CONFIG_IOTHREAD

[qemu.git] / migration.c

diff --git a/migration.c b/migration.c
index a160462dfa68de92b71683113319c27a09a8bdcc..d593b1df5dd8b7a253b034cf57a407005ed10d5a 100644 (file)
--- a/migration.c
+++ b/migration.c
@@ -32,7 +32,7 @@
 #endif
 
 /* Migration speed throttling */
-static uint32_t max_throttle = (32 << 20);
+static int64_t max_throttle = (32 << 20);
 
 static MigrationState *current_migration;
 
@@ -88,6 +88,10 @@ int do_migrate(Monitor *mon, const QDict *qdict, QObject **ret_data)
         return -1;
     }
 
+    if (qemu_savevm_state_blocked(mon)) {
+        return -1;
+    }
+
     if (strstart(uri, "tcp:", &p)) {
         s = tcp_start_outgoing_migration(mon, p, max_throttle, detach,
                                          blk, inc);
@@ -132,11 +136,13 @@ int do_migrate_cancel(Monitor *mon, const QDict *qdict, QObject **ret_data)
 
 int do_migrate_set_speed(Monitor *mon, const QDict *qdict, QObject **ret_data)
 {
-    double d;
+    int64_t d;
     FdMigrationState *s;
 
-    d = qdict_get_double(qdict, "value");
-    d = MAX(0, MIN(UINT32_MAX, d));
+    d = qdict_get_int(qdict, "value");
+    if (d < 0) {
+        d = 0;
+    }
     max_throttle = d;
 
     s = migrate_to_fms(current_migration);
@@ -316,8 +322,14 @@ ssize_t migrate_fd_put_buffer(void *opaque, const void *data, size_t size)
     if (ret == -1)
         ret = -(s->get_error(s));
 
-    if (ret == -EAGAIN)
+    if (ret == -EAGAIN) {
         qemu_set_fd_handler2(s->fd, NULL, NULL, migrate_fd_put_notify, s);
+    } else if (ret < 0) {
+        if (s->mon) {
+            monitor_resume(s->mon);
+        }
+        s->state = MIG_STATE_ERROR;
+    }
 
     return ret;
 }
@@ -362,8 +374,6 @@ void migrate_fd_put_ready(void *opaque)
         DPRINTF("done iterating\n");
         vm_stop(0);
 
-        qemu_aio_flush();
-        bdrv_flush_all();
         if ((qemu_savevm_state_complete(s->mon, s->file)) < 0) {
             if (old_vm_running) {
                 vm_start();