Re: [NILO-discuss] Zen and the art of running in real mode
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From: H. P. A. <hp...@zy...> - 2005-03-09 19:20:57
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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 |