migration: fix missing assignment for has_x_checkpoint_delay

We forgot to assign true to params->has_x_checkpoint_delay parameter
in qmp_query_migrate_parameters.

Without this, qmp command 'query-migrate-parameters' doesn't show the
default value for x-checkpoint-delay option.

This also fixes the fact that HMP was relying on unspecified behavior by
reading x_checkpoint_delay without checking has_x_checkpoint_delay.

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/hmp.c b/hmp.c
index b5e3f54534..02103dfb75 100644
--- a/hmp.c
+++ b/hmp.c
@@ -318,6 +318,7 @@ void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict)
         monitor_printf(mon, " %s: %" PRId64 " milliseconds",
             MigrationParameter_lookup[MIGRATION_PARAMETER_DOWNTIME_LIMIT],
             params->downtime_limit);
+        assert(params->has_x_checkpoint_delay);
         monitor_printf(mon, " %s: %" PRId64,
             MigrationParameter_lookup[MIGRATION_PARAMETER_X_CHECKPOINT_DELAY],
             params->x_checkpoint_delay);