Jeroen Janssen wrote:
> * the ROMBIOS should be changed in such a way it will scan D000-F000 for
> 0xaa55 on 2k boundaries, so it will be easy to add optional bios'es (I
> would like to use the VESA BIOS in combination with the VGA BIOS instead
> of completely replacing the VGA Bios).
OK,
I can add this capability to the ROM BIOS. Will do that and upload
it to CVS.
> looking at the display framebuffer again, do we have a "nice" way to
> provide "video memory" to the guest? (it would be nice if I could
> allocate an SDL surface in a specific display format, get a pointer to
> the video memory and map this memory directly into the guests memory
> space - this would probably be done at the instance an user program
> switches to a gfx mode with that specific display format).
>
> I don't like the idea to use "actual available" physical memory of the
> guest to provide video memory, because you need to make sure the guest
> os doesn't see it as "normal" physical memory and you will allways need
> to do an additional memory copy before you can display something.
We can change things around such that physical memory ranges in the
host can be mapped arbitrarily into the physical memory space of the
guest.
-Kevin
