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

[jf simon]

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.
>
>Ollie
>
>  
>

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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