By ash on May 29, 2008
I'm hoping we'll move the document to a more accessible location on the web-site, so just in case that happens and the link above ceases to work, a local copy is also available.
This document provides an overview of how the whole virtualization environment hangs together, followed by detailed descriptions of each of the interfaces available to an operating system running in a virtual machine ("Logical Domain"). This includes virtual devices such as disk and networking.
If you're serious about hacking a kernel for a sun4v UltraSPARC machine, be it Linux, FreeBSD or OpenSolaris, or even if your just curious you'll wan to take a look at this.