When I first started working in the Xen community, I purchased the David Chisnall book about Xen to learn more. I received a link from the publisher to showcase a chapter from the book. Click here to read Chapter 6, Understanding Device Drivers. For more information on this book you can visit the publishers site here.
Quote from Simon Crosby on this book:
“The Xen hypervisor has become an incredibly strategic resource for the industry, as the focal point of innovation in cross-platform virtualization technology. David’s book will play a key role in helping the Xen community and ecosystem to grow.”
David also has a recent posting on the HURD kernel worth reading for those with an interest in OS history.
(Note: I will be promoting other Xen books over time to ensure that all authors writing Xen books get publicity within the community)