Google funded 9 students to contribute to QEMU, KVM, and libvirt during the summer of 2013. We had a successful Google Summer of Code that has now come to a close.
Osier Yang (mentor), Michael Roth (mentor), and I wrote a blog post that highlights two projects from this summer:http://google-opensource.blogspot.de/2013/10/google-summer-of-code-veteran-orgs-qemu.html
Gabriel Kerneis (mentor), Charlie Shepherd (student), and I also collaborated on a paper that describes the QEMU/CPC project that we had this summer. The paper is titled "QEMU/CPC: static analysis and CPS conversion for safe, portable, and efficient coroutines" and is available at http://gabriel.kerneis.info/research/files/qemu-cpc.pdf. There is also a mailing list discussion here.