migration: report an error giving the failed field

When a field fails to load (typically due to a limit
check, or a call to a get/put) report the device and field
to give an indication of the cause.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2016-09-27 19:56:04 +01:00 committed by Juan Quintela
parent 6aa5a36794
commit a1771070e7

View File

@ -130,6 +130,8 @@ int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
}
if (ret < 0) {
qemu_file_set_error(f, ret);
error_report("Failed to load %s:%s", vmsd->name,
field->name);
trace_vmstate_load_field_error(field->name, ret);
return ret;
}