[lkml]   [2012]   [Jan]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 2/2] PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB

* Bjorn Helgaas <> wrote:

> On Thu, Jan 5, 2012 at 2:27 PM, Bjorn Helgaas <> 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.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2012-01-06 09:53    [W:0.053 / U:5.008 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site