On Mon, Jan 23, 2012 at 10:55 AM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote: > Windows shows the [io 0xf000-0xffff] range as being available under > both host bridges, and the fact that those ports actually work under > both bridges means they must actually be routed both places. Oops, this is wrong. We can't tell whether the [io 0xf000-0xffff] range is routed to PCI0, because when the card under that bridge, the BIOS puts it at [io 0xdc00-0xdcff] instead. This is probably a BIOS bug (the resource assignment part puts the card in the right area, but the ACPI _CRS doesn't match). But the fact remains that Windows does accept this _CRS and Linux doesn't but probably should. Bjorn -- 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
