migration: Switch to COLO process after finishing loadvm

Switch from normal migration loadvm process into COLO checkpoint process if
COLO mode is enabled.

We add three new members to struct MigrationIncomingState,
'have_colo_incoming_thread' and 'colo_incoming_thread' record the COLO
related thread for secondary VM, 'migration_incoming_co' records the
original migration incoming coroutine.

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Amit Shah <amit@amitshah.net>

1 files changed, 10 insertions, 0 deletions

diff --git a/stubs/migration-colo.c b/stubs/migration-colo.c
index 0c8eef4f38..7b723954d5 100644
--- a/stubs/migration-colo.c
+++ b/stubs/migration-colo.c
@@ -23,6 +23,16 @@ bool migration_in_colo_state(void)
     return false;
 }
 
+bool migration_incoming_in_colo_state(void)
+{
+    return false;
+}
+
 void migrate_start_colo_process(MigrationState *s)
 {
 }
+
+void *colo_process_incoming_thread(void *opaque)
+{
+    return NULL;
+}