Hi, This is a repost of the latest SDL2 UI layer along with virtio-gpu,
I've merged the SDL2 base and multi-head patches into one, and I've split out the display notifiers stuff and the sdl2 demo hack. The virtio-gpu/vga wrapping is still unresolved, I've failed to find a cleaner way yet, hopefully Gerd will advise further, but having 4 virtio-gpu- objects we getting ugly fast. I've also included a doc on the basic queues used in the virtio-gpu and what commands are sent on them. I'd really like to get the sdl2 base patch merged at least, Dave.
