The upcoming vmware svga2 hardware version 11 will introduce the concept of "guest backed objects" or -resources. The device will in principle get all of its memory from the guest, which has big advantages from the device point of view.
This means that vmwgfx contexts, shaders and surfaces need to be backed by guest memory in the form of buffer objects called MOBs, presumably short for MemoryOBjects, which are bound to the device in a special way.
This patch series introduces guest backed object support. Some new IOCTLs are added to allocate these new guest backed object, and to optionally provide them with a backing MOB.
There is an update to the gallium driver that comes with this update, and it will be pushed in the near timeframe presumably to a separate mesa branch before merged to master.
All but the last patch have been reviewed internally. Please let me know whether there are any concerns before i generate a pull request.
Thanks, Thomas