Linq To XML, yield and others

Question

I was wondering if there's a .NET library or a 3rd party tool for executing Entity Framework like LINQ queries on XML Documents. I know there's already LINQ to XML which allows you to execute queries on an XDocument object which is ALREADY loaded into memory, but what if the XML Document is extremely large in size (over a gigabyte)?

I would like to have an option to hand this query over to an XmlReader rather to an XDocument object. Is that possible straight out of the box?