[LinuxBIOS] RE : Re: VGA bios and i/o access for powerpc

jf simon jfaslist at yahoo.fr
Wed Sep 6 18:24:11 CEST 2006

ollie wrote:

>Unfortunately, this is no going to work. The VGA BIOS still use the 
>legacy IO ports. All you will get in the listing is in/out to port
>0x3xx. You just have to figure out how to forward IO to legacy ports.

If you snoop the PCI bus right on the PCI slot for the graphic card, you 
see "real"  pci i/o cycles bound to the PCI i/o BAR of the graphic card. 
If the address is outside of the BAR the access will not be decoded byte 
graphic PCI agent, I would think.
-jf simon


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