On Thu, 2009-08-20 at 15:47 -0600, Grant Grundler wrote: > > Could that be to reserve address space that the "disabled" IOMMU > might still be responding to? > > Ie the BIOS hides the control registers so the OS won't talk to the > device but the IOMMU might still attempt to lookup certain address > ranges. > > I'm more inclined to believe it's sloppiness on the part of the BIOS > writers but thought this might be an alternative explanation. Nah, this is just the normal story: "We smoked too much crack and fried our brains, and we don't do any QA on the crap we write because that would leave fewer hours in the day for us to service our crack habit". We _really_ need open source firmware. Or at _least_ firmware written by competent engineers -- but I think we've all fairly much given up on that happening by now? -- dwmw2 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
