On Wednesday, May 2, 2007 4:54 pm Jesse Barnes wrote: > > What happens if you take out the chipset register detection, does > > the MCFG table give you the same result? Wonder if they're doing > > something funny with start/end bus values or something in their > > table. There's some code in my patch that prints out the important > > data from the MCFG table, can you tell me what that shows with the > > chipset detection taken out? > > Yeah, I'll look a little more closely. It could also be that another > register needs tweaking somewhere to actually get the bridge to > decode the space. > > > If that doesn't provide any useful information, I think we may need > > some assistance from Intel chipset/motherboard people to figure out > > what is going on here.. > > I'm talking with them now, hopefully they'll shed some light on it.
I did a little more debugging this morning, and found that I can actually do reads from the space described by ACPI and the device register, but later when ACPI actually scans the root bridges, it hangs. Specifically the call to pci_acpi_scan_root in pci_root.c:acpi_pci_root_add() never seems to return. I'll walk through that logic when I get back to my test box, but it's also worth noting that Vista's MCFG on this machine apparently works ok too. Jesse - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/