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Re: [Xen-devel] stubdomain questions

Giorgenes Gelatti, le Fri 17 Jul 2009 12:48:34 -0300, a écrit :
>     when using stubdomains, qemu in dom0 doesn't do device emulation but
>     provides few backends to the stubdom: the console backend and the pvfb
>     backend. The last one is needed to render the guest framebuffer using
>     sdl or for exporting it through vnc.
> Is it possible (or is it being planned) to put these functions inside the
> stubdomain too and completely eliminate the need of qemu-dm running in dom0?

In theory we could compile SDL into the stubdomain and let it connect to
the X server itself through TCP/IP.  That however would be very far from
efficient, as you loose memory-memory video blitting and go through
network links.

VNC server used to be possible in stubdomains, but the configuration is
quite cumbersome: you have to assign the stubdomain an IP. Letting dom0
do this was much more simple, especially since dirtyness tracking is
still done by the stubdomain, not dom0's ioemu.


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