You should have a 1.6L Ecotech. I don't believe it is stamped anywhere on the engine though, maybe on a label under the hood. In the service manuals it would be labeled 1.6L(LXV). From what I gather, there were several engines used on the 09 Aveo's depending on what region they were made for.

The US only got the 1.6L LXV, if I'm not mistaken

I'll check my 09 tomorrow morning and figure out if it's labeled anywhere