Messages in this thread | | | Date | Thu, 21 Jun 2012 12:24:07 -0700 | Subject | Re: SNB PCI root information | From | Yinghai Lu <> |
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On Wed, Jun 20, 2012 at 10:56 PM, Brice Goglin <brice.goglin@gmail.com> wrote: >> I suspected that could be other problem. intel system before >> sandbridge does not have IIO. >> they will have ioh instead, and one ioh would connect to two cpu sockets. >> but _PXM for root bus in dsdt only can return one value. Aka it is >> acpi spec limitation. > > The machines I am talking about have two IOHs (one connected to each > socket). I only have an old 2.6.27 boot log at hand, I'll ask my admins > for more. Do you want the 2.6.27 dmesg anyway? >
log from 2.6.27 should be good enough for this.
BIOS _PXM return 0 for both pci root buses?
those systems with two IOHs really deserve good BIOS.
Hope we can have more updated machines with open sourced firmware.
Thanks
Yinghai
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