From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:39699) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UaL0C-0002Rk-Lt for qemu-devel@nongnu.org; Thu, 09 May 2013 03:10:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UaL07-0000g2-Hv for qemu-devel@nongnu.org; Thu, 09 May 2013 03:10:56 -0400 Received: from mail-ia0-x22f.google.com ([2607:f8b0:4001:c02::22f]:61604) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UaL07-0000fp-4Q for qemu-devel@nongnu.org; Thu, 09 May 2013 03:10:51 -0400 Received: by mail-ia0-f175.google.com with SMTP id i38so2893270iae.20 for ; Thu, 09 May 2013 00:10:50 -0700 (PDT) Message-ID: <518B4BEA.10107@gmail.com> Date: Thu, 09 May 2013 15:10:34 +0800 From: Li Zhang MIME-Version: 1.0 References: <5188AB30.1020307@gmail.com> <5188CE5F.2060703@redhat.com> <5188FC03.6040204@au1.ibm.com> <518B3D30.8020303@gmail.com> <518B42B5.3010604@au1.ibm.com> In-Reply-To: <518B42B5.3010604@au1.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Subject: Re: [Qemu-devel] [libvirt]virtio serial device problem List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alexey Kardashevskiy Cc: "libvir-list@redhat.com" , "qemu-devel@nongnu.org" , David Gibson , Paolo Bonzini , Pradipta Kumar Banerjee , fred.konrad@greensocs.com On 2013年05月09日 14:31, Alexey Kardashevskiy wrote: > On 05/09/2013 04:07 PM, Li Zhang wrote: >> On 2013年05月08日 23:53, fred.konrad@greensocs.com wrote: >>>> On 05/07/2013 07:50 PM, Paolo Bonzini wrote: >>>>> Il 07/05/2013 09:20, Li Zhang ha scritto: >>>>>> Hi all, >>> Hi, >>>>>> When we use the latest version of QEMU to build ovirt, >>>>>> we get this error reported from libvirt. >>>>> What QEMU commit is this? >>>> b3e6d591b05538056d665572f3e3bbfb3cbb70e7 >>> This commit is from 05/29 no? >>> >>> there were issues with that. But it should be fixed. >>> >>> Do you still have the command-line issue with the last git? >>> >>> See commit 80270a19685dd20eda017b0360c743b3e3ed6f57 >> Hi Fred, >> >> This patch is to change bus which can be compatible with old version, right? >> But I saw the current name is still different from old version. >> >> The current name is: "virtio-serial-bus0.0" >> The old version is: "virtio-serial0.0" >> >> Is it possible to change it back to the old name? > > This is what the most recent qemu produces: > > bus: pci > type PCI > dev: virtio-serial-pci, id "virtio-serial0" > ioeventfd = on > vectors = 2 > class = 0x780 > indirect_desc = on > event_idx = on > max_ports = 31 > addr = 03.0 > romfile = > rombar = 1 > multifunction = off > command_serr_enable = on > class Class 0780, addr 00:03.0, pci id 1af4:1003 (sub 1af4:0003) > bar 0: i/o at 0xffffffffffffffff [0x1e] > bar 1: mem at 0xffffffffffffffff [0xffe] > bus: virtio-bus > type virtio-pci-bus > dev: virtio-serial-device, id "" > max_ports = 31 > bus: virtio-serial0.0 > type virtio-serial-bus > dev: virtserialport, id "channel0" > chardev = charchannel0 > nr = 1 > name = "com.redhat.rhevm.vdsm" > port 1, guest off, host off, throttle off > > > The device layout is new, the bus name is old - "virtio-serial0.0", > everything should be ok now. > > Alexey, thanks. It seems that both of them can be recognized. :) >> Thanks. :) >> --Li >>> Thanks, >>> Fred >>> >>>>> It might have been fixed already. >>>> Hm. From what I see, it is all correct from the qemu side, the problem is >>>> in libvirt which does not know about "virtio-pci-bus" yet. >>>> >>>> >>>> >>>>> Paolo >>>>> >>>>>> qemu-system-ppc64: -device >>>>>> virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.rhevm.vdsm: >>>>>> >>>>>> >>>>>> Bus 'virtio-serial0.0' is full >>>>>> qemu-system-ppc64: -device >>>>>> virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.rhevm.vdsm: >>>>>> >>>>>> >>>>>> Bus 'virtio-serial0.0' not found >>>>>> >>>>>> Libvirt helps create QEMU command line and put virtserialport device to >>>>>> bus virtio-serial0.0. >>>>>> For latest version of QEMU, the bus type is changed. >>>>>> >>>>>> (qemu) info qtree >>>>>> bus: main-system-bus >>>>>> type System >>>>>> dev: spapr-pci-host-bridge, id "" >>>>>> index = 0 >>>>>> buid = 0x800000020000000 >>>>>> liobn = 0x80000000 >>>>>> mem_win_addr = 0x100a0000000 >>>>>> mem_win_size = 0x20000000 >>>>>> io_win_addr = 0x10080000000 >>>>>> io_win_size = 0x10000 >>>>>> msi_win_addr = 0x10090000000 >>>>>> irq 0 >>>>>> bus: pci >>>>>> type PCI >>>>>> dev: virtio-serial-pci, id "virtio-serial0" >>>>>> ioeventfd = on >>>>>> vectors = 2 >>>>>> class = 0x780 >>>>>> indirect_desc = on >>>>>> event_idx = on >>>>>> max_ports = 31 >>>>>> addr = 03.0 >>>>>> romfile = >>>>>> rombar = 1 >>>>>> multifunction = off >>>>>> command_serr_enable = on >>>>>> class Class 0780, addr 00:03.0, pci id 1af4:1003 (sub >>>>>> 1af4:0003) >>>>>> bar 0: i/o at 0xffffffffffffffff [0x1e] >>>>>> bar 1: mem at 0xffffffffffffffff [0xffe] >>>>>> bus: virtio-serial0.0 >>>>>> type virtio-pci-bus >>>>>> dev: virtio-serial-device, id "" >>>>>> max_ports = 31 >>>>>> bus: virtio-serial-bus.0 >>>>>> type virtio-serial-bus >>>>>> dev: virtserialport, id "channel1" >>>>>> chardev = charchannel1 >>>>>> nr = 2 >>>>>> name = "org.qemu.guest_agent.0" >>>>>> port 2, guest off, host off, throttle off >>>>>> dev: virtserialport, id "channel0" >>>>>> chardev = charchannel0 >>>>>> nr = 1 >>>>>> name = "com.redhat.rhevm.vdsm" >>>>>> port 1, guest off, host off, throttle off >>>>>> >>>>>> >>>>>> But we tried to replace virtio-serial0.0 with virtio-serial-bus.0, >>>>>> SLOF crashes. It still doesn't work at all. >>>>>> >>>>>> Does anyone know how to use virtserialport in QEMU command line? >>>>>> If configuration is changed in QEMU, libvirt also needs to change it >>>>>> accordingly. >>>>>> >>>>>> Thanks. :) >>>>>> --Li >>>>>> >>>>>> >>>>>> >>>> -- >>>> Alexey Kardashevskiy >>>> IBM OzLabs, LTC Team >>>> >>>> e-mail: aik@au1.ibm.com >>>> notes: Alexey Kardashevskiy/Australia/IBM >>>> >>>> >>>> >