From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([2001:4830:134:3::10]:37474)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <kraxel@gmail.com>) id 1Z4OEB-0005EW-7a
	for qemu-devel@nongnu.org; Mon, 15 Jun 2015 02:50:39 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <kraxel@gmail.com>) id 1Z4OE5-0002ty-Bw
	for qemu-devel@nongnu.org; Mon, 15 Jun 2015 02:50:39 -0400
Received: from mail-wi0-x232.google.com ([2a00:1450:400c:c05::232]:33347)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <kraxel@gmail.com>) id 1Z4OE5-0002ta-3p
	for qemu-devel@nongnu.org; Mon, 15 Jun 2015 02:50:33 -0400
Received: by wiwd19 with SMTP id d19so65047847wiw.0
	for <qemu-devel@nongnu.org>; Sun, 14 Jun 2015 23:50:32 -0700 (PDT)
Message-ID: <1434351024.31654.25.camel@gmail.com>
From: Gerd Hoffmann <kraxel@gmail.com>
Date: Mon, 15 Jun 2015 08:50:24 +0200
In-Reply-To: <1434348068.31654.15.camel@redhat.com>
References: <1434029828-31954-1-git-send-email-marcel@redhat.com>
	<20150611135841.GA7998@morn.localdomain> <55799751.1030904@redhat.com>
	<20150611142425.GA10763@morn.localdomain> <55799CD6.1060506@redhat.com>
	<20150611165404.GB20655@morn.localdomain> <5579C959.8020607@redhat.com>
	<20150611191058.GA28252@morn.localdomain>
	<1434088832.28479.7.camel@redhat.com> <557ACDD7.9060801@redhat.com>
	<20150612132329.GB3622@morn.localdomain>
	<1434348068.31654.15.camel@redhat.com>
Content-Type: text/plain; charset="UTF-8"
Mime-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: Re: [Qemu-devel] [PATCH V2] pci: fixes to allow booting from extra
 root pci buses.
List-Id: <qemu-devel.nongnu.org>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Kevin O'Connor <kevin@koconnor.net>
Cc: Marcel Apfelbaum <marcel@redhat.com>, seabios@seabios.org, lersek@redhat.com, qemu-devel@nongnu.org, mst@redhat.com

  Hi,

> I'm wondering whenever things become easier if we add config registers
> to the pxb, where the firmware can program the bus number range and we
> can use the config register base as a way to specify which pxb we are
> referring to ?

... and, while thinking about ben's reply elsewhere in this thread,
maybe even decouple the whole thing from the primary root bus?  You
can't program the devices via 0x0cf8 then, but we could add a mmconfig
bar to the host bridge device ...

cheers,
  Gerd