From mboxrd@z Thu Jan 1 00:00:00 1970 From: thomas.petazzoni@free-electrons.com (Thomas Petazzoni) Date: Tue, 29 Jan 2013 18:43:20 +0100 Subject: [PATCH v2 07/27] PCI: Add software-emulated host bridge In-Reply-To: <20130129174205.GD25646@obsidianresearch.com> References: <1359399397-29729-1-git-send-email-thomas.petazzoni@free-electrons.com> <1359399397-29729-8-git-send-email-thomas.petazzoni@free-electrons.com> <201301282018.17714.arnd@arndb.de> <5106F5CB.8050304@wwwdotorg.org> <20130128220904.GA21446@obsidianresearch.com> <20130128231829.6b205c3c@skate> <20130128222348.GA21628@obsidianresearch.com> <20130128233048.2ab6a6d2@skate> <20130128225105.GA21935@obsidianresearch.com> <20130129110119.07cb9ef3@skate> <20130129174205.GD25646@obsidianresearch.com> Message-ID: <20130129184320.59f534c4@skate> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Dear Jason Gunthorpe, On Tue, 29 Jan 2013 10:42:05 -0700, Jason Gunthorpe wrote: > So if this is what you have now... > > -[0000:00]-+-00.0 <- Host bridge > +-10.0 <- Bridge > +-11.0 <- Bridge > +-12.0 <- Bridge > > Then removing the config space at 00.0 (ie the host bridge) will give > you: > > -[0000:00]-+-10.0 <- Bridge > +-11.0 <- Bridge > +-12.0 <- Bridge > > The 'host bridge' isn't a bridge in the PCI-PCI sense, it is just a > normal device at bus 0, device 0, function 0. Ok, thanks I'll try this! Thomas -- Thomas Petazzoni, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com