From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael S. Tsirkin" Subject: Re: KVM call minutes 2013-01-29 - Port I/O Date: Thu, 31 Jan 2013 00:49:19 +0200 Message-ID: <20130130224919.GA8820@redhat.com> References: <871ud4gfoa.fsf@elfo.elfo> <5109065B.4060803@suse.de> <87vcae6ab6.fsf@codemonkey.ws> <1359579910.23274.31.camel@pasglop> <87a9rq5p0p.fsf@codemonkey.ws> <20130130222017.GE6544@redhat.com> <1359585125.23274.41.camel@pasglop> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: KVM devel mailing list , Juan Quintela , qemu-devel , Alexander Graf , Alon Levy , qemu-ppc , Gerd Hoffmann , Anthony Liguori , =?iso-8859-1?Q?Herv=E9?= Poussineau , Andreas =?iso-8859-1?Q?F=E4rber?= , David Gibson To: Benjamin Herrenschmidt Return-path: Content-Disposition: inline In-Reply-To: <1359585125.23274.41.camel@pasglop> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+gceq-qemu-devel=gmane.org@nongnu.org Sender: qemu-devel-bounces+gceq-qemu-devel=gmane.org@nongnu.org List-Id: kvm.vger.kernel.org On Thu, Jan 31, 2013 at 09:32:05AM +1100, Benjamin Herrenschmidt wrote: > On Thu, 2013-01-31 at 00:20 +0200, Michael S. Tsirkin wrote: > > > > Well you can have a PCI bridge and a legacy device behind that. > > I think real PCI express devices can not be mapped onto legacy address > > ranges. > > In practice they do (VGA at least) > > >From a SW modelling standpoint, I don't think it's worth differentiating > PCI and PCIE. > > Cheers, > Ben. Interesting. Do you have such hardware? Could you please dump the output of lspci -vv?