I often see requests from various people for information on where certain features are located within the Xen source code. To assist those people, I have been working on (and still am) a Xen Source Code Guide for the newly released Xen 3.4 source code.
I expect to have all the source code files listed and described by the end of this week and then will start working on short summaries of each directory. The current version of the guide is listed below (I am always open to assistance from the community on this effort):
Feel free to send me any edits or updates. Thanks.