Re: SNB PCI root information

[Ulrich Drepper]

On Sat, Jun 16, 2012 at 5:56 PM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote:
> If ACPI provides a perfectly usable generic way to describe this
> topology and the vendor BIOS doesn't bother to use it, I'm not very
> interested in trying to compensate for that BIOS deficiency by adding
> a bunch of non-portable CPU-specific gunk to Linux.

The problem is that all machines get this wrong.  I've tested varies
models from Dell and HP and none of them have the _PXM entry and the
local_cpus fields are wrong.  If there is a reasonably sane way to
compensate for broken BIOSes it should be considered.  We all know how
good BIOS authors are...
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