Re: [libvirt] [Qemu-devel] virtio serial device problem

> 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

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 = <null> >>> 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