pvfb framebuffer video driver support (frontend)

Contact: port-xen
Duration estimate: 16 hours

Abstract: The pvfb video driver and the keyboard/point driver are useful for gui interaction with a domU console, including gui.

Deliverables:

A framebuffer device and console, which can be used to interact with the domU. The qemu process on the dom0 can then use this buffer to display to the regular X server using the SDL, as it does with HVM domUs. This is very useful for gui frontends to xen.

Implementation:

A simple framebuffer driver is implemented, along the lines of: http://xenbits.xensource.com/hg/linux-2.6.18-xen.hg/file/ca05cf1a9bdc/drivers/xen/fbfront/