From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:52354) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TCwFg-0007Kl-1B for qemu-devel@nongnu.org; Sat, 15 Sep 2012 13:33:56 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TCwFf-0000cE-51 for qemu-devel@nongnu.org; Sat, 15 Sep 2012 13:33:55 -0400 Received: from mx1.redhat.com ([209.132.183.28]:21452) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TCwFe-0000c7-Sx for qemu-devel@nongnu.org; Sat, 15 Sep 2012 13:33:55 -0400 Date: Sat, 15 Sep 2012 20:35:22 +0300 From: "Michael S. Tsirkin" Message-ID: <20120915173521.GB15258@redhat.com> References: <20120914151401.GL22827@valinux.co.jp> <20120914152329.GL1821@redhat.com> <20120914173418.GM22827@valinux.co.jp> <20120914190154.GM1821@redhat.com> <20120915002451.GN22827@valinux.co.jp> <50546770.2060901@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <50546770.2060901@redhat.com> Subject: Re: [Qemu-devel] [PATCH 00/25] q35 series take #1 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini Cc: aliguori@us.ibm.com, alex.williamson@redhat.com, jan.kiszka@siemens.com, Jason Baron , qemu-devel@nongnu.org, agraf@suse.de, Isaku Yamahata , juzhang@redhat.com, kevin@koconnor.net, avi@redhat.com, mkletzan@redhat.com, lcapitulino@redhat.com, afaerber@suse.de, armbru@redhat.com On Sat, Sep 15, 2012 at 01:33:04PM +0200, Paolo Bonzini wrote: > Il 15/09/2012 02:24, Isaku Yamahata ha scritto: > >> > ok, yes pcie hotplug seems to work :) I guess I got confused b/c I > >> > thought devices would show up on the host bus. So the host bus in q35 > >> > simply doesn't support hotplug? > > No, it doesn't. > > I think it makes sense then to keep ACPI hotplug on the host bus, for > backwards compatibility with PIIX4 guests, especially if the code is > written. > > Paolo I agree. I think ACPI hotplug support is a spec requirement anyway: if you look at ACPI spec you will see that native hotplug support for guest is optional. -- MST