Hi, > > Which linux driver is this? > > Those in linux/drivers/video/fbdev/aty/. This ati-vga model defaults to Rage > 128 Pro (what PoweMac3,1 has, device id 0x5046) which is handled by the > aty128fb driver under Linux. MIPS fulong2e has Mobility Radeon M6 (RV100, > device id 0x5159) that you can also use as -device ati-vga,device_id=0x5159 > which is driven by radeonfb under Linux.
So it could be tested with linux guests on x86 too I guess? Can the radeon drm driver handle the devices too? I'd also use model=<name> instead of device_id=... to switch between different devices. > > If linux has a native driver it might make sense to also enable it on > > x86. Makes testing easier. > > Yes it could work on all archs under Linux but I've only enabled it on the > two I've tried. It could be added instead to the same place where vga is > added in pci.mak if you like. Makes sense IMHO. > > You can add the driver to default_list[] in vl.c, then you don't need > > -vga none to remove the default vga when adding -device ati-vga. > > I could do that but since it's a bit unfinished (lacks advanced features > such as video overlay, 3D accel, command FIFO, etc.) and only a basic > implementation at the moment to work with Linux framebuffer that doesn't use > these features I thought it might be a godd idea to make it a bit harder to > access yet to avoid problem of someone trying it with a Windows guest with > drivers from ATI which probably will result in bad picture. But it's up to > you to decide if you want to add it to -vga option from the start or have it > as optional device and only add to -vga when it's more fully implemented and > tested. It's not about "-vga ati". This is about adding ati-vga to the list of display devices, so qemu will not try to add a vga automatically in case it finds "-device ati-vga" on the command line. That way "qemu -device ati-vga" will work fine, without "-vga none". Adding -vga ati indeed only makes sense once the implementation is more complete. cheers, Gerd
