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Date: Fri, 6 Jan 2012 09:49:01 +0100
From: Ingo Molnar <mingo@elte.hu>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>, thuban@singularity.fr,
        dann frazier <dann.frazier@canonical.com>,
        Lisa Salimbas <lisa.salimbas@canonical.com>,
        linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
        Len Brown <lenb@kernel.org>
Subject: Re: [PATCH 2/2] PNP: work around Dell 1536/1546 BIOS MMCONFIG bug
 that breaks USB
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* Bjorn Helgaas <bhelgaas@google.com> wrote:

> On Thu, Jan 5, 2012 at 2:27 PM, Bjorn Helgaas <bhelgaas@google.com> wrote:
> > Some Dell BIOSes have MCFG tables that don't report the entire
> > MMCONFIG area claimed by the chipset.  If we move PCI devices into
> > that claimed-but-unreported area, they don't work.
> >
> > This quirk reads the AMD MMCONFIG MSRs and adds PNP0C01 resources as
> > needed to cover the entire area.
> 
> PNP stuff usually goes through Len's ACPI tree, but this is 
> really x86-specific, and these two patches need to go 
> together, so I think it would make sense to put them both in 
> the x86 tree.  Len, do you object?

I'd really suggest the PCI tree for this - mmconfig is really 
PCI related.

Thanks,

	Ingo