From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: MIME-Version: 1.0 In-Reply-To: <20120106084901.GD14188@elte.hu> References: <20120105212719.3965.40406.stgit@bhelgaas.mtv.corp.google.com> <20120105212724.3965.30193.stgit@bhelgaas.mtv.corp.google.com> <20120106084901.GD14188@elte.hu> From: Bjorn Helgaas Date: Fri, 6 Jan 2012 10:18:49 -0700 Message-ID: Subject: Re: [PATCH 2/2] PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB To: Ingo Molnar Cc: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , thuban@singularity.fr, dann frazier , Lisa Salimbas , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, Len Brown , Jesse Barnes , linux-pci@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-acpi-owner@vger.kernel.org List-ID: On Fri, Jan 6, 2012 at 1:49 AM, Ingo Molnar wrote: > > * 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. OK, Jesse, would you like to pick up these two patches? Bjorn