Re: [NILO-discuss] Zen and the art of running in real mode

[H. P. A. <hp...@zy...>]

Michael Brown wrote:
> 
> The MMIO/portio issue is driver-specific.  Drivers that use MMIO will use 
> readX/writeX.  Since these functions won't work under -DKEEP_IT_REAL, we 
> could just make the compiler throw an error.
> 

Right.  With appropriate descriptors set up they could work in 16-bit 
protected mode, though, for supporting the PM entry point.

I have no idea how the FreeBSD people expect their things to work with 
MMIO-based cards.  I suspect they just tried a small number of cards, it 
worked, and they thought they were clever.

	-hpa