From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com ([209.132.183.28]:44062 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933028Ab2EWTNF (ORCPT ); Wed, 23 May 2012 15:13:05 -0400 Date: Wed, 23 May 2012 22:13:07 +0300 From: "Michael S. Tsirkin" To: Yinghai Lu Cc: Jason Baron , bhelgaas@google.com, linux-pci@vger.kernel.org Subject: Re: [PATCH] pci hotplug: rescan bridge after device hotplug Message-ID: <20120523191307.GE32207@redhat.com> References: <201205222011.q4MKBcMo024624@int-mx02.intmail.prod.int.phx2.redhat.com> <20120523024313.GA2888@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: Sender: linux-pci-owner@vger.kernel.org List-ID: On Tue, May 22, 2012 at 08:31:30PM -0700, Yinghai Lu wrote: > but pciehp we could do that, because it will only have one device > under that pcie root port or downstream port. > > so you can make qemu to support pcie and pciehp. This does not solve the problem I think because there are still multiple devices behind an upstream port. Also, swiching to pcie creates a host of other complexities so we want to support pci bridges too. -- MST