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[libvirt-users] Sys::Virt integration into other event loops
by Scott Wiersdorf 17 Mar '14

17 Mar '14

Hi all, I’m trying to integrate Perl’s Sys::Virt into an already existing AnyEvent program. I’m accustomed to writing things like this: use EV; use AnyEvent; use AnyEvent::Handle; my $h = AnyEvent::Handle->new(fh => $fh, …); $h->on_read(sub { … }); EV::run; ## start the event loop I can add some code in the on_read() handler and every time the $fh has something to read, it will fire off. I’d like to do something similar with Sys::Virt, but I can’t seem to wrap my head around its event system. The only examples I can find are the ones included in Sys::Virt source, which consist of a series of run_once() calls, or a while loop around run_default(). Does anyone have any idea how I can make this play nicely with an existing event loop such as EV, or even to fire off ($cv->send) an AnyEvent condvar when the event I set in domain_event_register_any() triggers? Our current solution involves setting an AnyEvent->timer, which periodically fires off and then does a run_once() to see if any events happened during the period, but we’d like something more responsive (i.e., triggers when the event actually occurs) and less poll-y feeling. I’d appreciate any advice you may have—thanks! Scott

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[libvirt-users] Problem in getting memory statistics
by Pasquale Dir 17 Mar '14

17 Mar '14

Hello, I need to get how much memory is used by a guest system, in order to implement some monitoring function which tells me if the system is overstressed. I am currently using java apis and the binding which was suggested to me was Domain.memoryStats(); This is a binding to int virDomainMemoryStats (virDomainPtr<http://libvirt.org/html/libvirt-libvirt.html#virDomainPtr>dom, virDomainMemoryStatPtr<http://libvirt.org/html/libvirt-libvirt.html#virDomainMemoryStatPtr>stats, unsigned int nr_stats, unsigned int flags). Problem is that it returns me just tags 0,6 and 7. Looking at the documentation I see they are not what I am looking for...I would rather need 4 (VIR_DOMAIN_MEMORY_STAT_UNUSED) and 5 (VIR_DOMAIN_MEMORY_STAT_AVAILABLE). Is there a way to set them?

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Re: [libvirt-users] Problem in getting memory statistics
by Claudio Bley 17 Mar '14

17 Mar '14

[please don't top post on technical lists. it is easier to follow conversation and less likely you forget answering a question if you reply to the questions in line] [please keep the conversation on the list - I've re-added libvirt-users] At Sat, 15 Mar 2014 10:15:15 +0100, Pasquale Dir wrote: > > I am on a kubuntu 13.10 x64, qemu version 1.5.0, guest uses kvm as emulator > (1.5.0 as well), libvirt version is 1.1.1. > I don't know what is a balloon driver...so I can't tell the version of it. If you're using Linux inside your guest, just run "modinfo virtio_balloon" and post the output. > 2014-03-14 12:00 GMT+01:00 Claudio Bley <cbley(a)av-test.de>: > > > At Wed, 12 Mar 2014 13:36:50 +0100, > > Pasquale Dir wrote: > > > > > > Problem is that it returns me just tags 0,6 and 7. > > > Looking at the documentation I see they are not what I am looking for...I > > > would rather need 4 (VIR_DOMAIN_MEMORY_STAT_UNUSED) and 5 > > > (VIR_DOMAIN_MEMORY_STAT_AVAILABLE). > > > > The information available depends on the kind of hypervisor you're > > using and which guest OS you have. > > > > I guess you're using qemu. Which version are you using? > > > What guest OS do you use? Which version? Er, you missed this question...

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[libvirt-users] How assign static ip using NAT?
by Peng Yu 15 Mar '14

15 Mar '14

Hi, I have the following configuration in the xml of the guest. But if I set a static ip on the guest, then the guest can not access the outside network. I don't find an example on how to set a static IP address for the guest. Could anybody know how to modify the following xml code to do so? Thanks. 41 <interface type='network'> 42 <mac address='52:54:00:6c:a7:6d'/> 43 <source network='default'/> 44 <model type='virtio'/> 45 <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> 46 </interface> -- Regards, Peng

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[libvirt-users] CfP 9th Workshop on Virtualization in High-Performance Cloud Computing (VHPC '14)
by VHPC 14 15 Mar '14

15 Mar '14

we apologize if you receive multiple copies of this CfP ================================================================= CALL FOR PAPERS 9th Workshop on Virtualization in High-Performance Cloud Computing (VHPC '14) held in conjunction with Euro-Par 2014, August 25-29, Porto, Portugal ================================================================= Date: August 26, 2014 Workshop URL: http://vhpc.org Paper Submission Deadline: May 30, 2014 CALL FOR PAPERS Virtualization technologies constitute a key enabling factor for flexible resource management in modern data centers, and particularly in cloud environments. Cloud providers need to dynamically manage complex infrastructures in a seamless fashion for varying workloads and hosted applications, independently of the customers deploying software or users submitting highly dynamic and heterogeneous workloads. Thanks to virtualization, we have the ability to manage vast computing and networking resources dynamically and close to the marginal cost of providing the services, which is unprecedented in the history of scientific and commercial computing. Various virtualization technologies contribute to the overall picture in different ways: machine virtualization, with its capability to enable consolidation of multiple under-utilized servers with heterogeneous software and operating systems (OSes), and its capability to live-migrate a fully operating virtual machine (VM) with a very short downtime, enables novel and dynamic ways to manage physical servers; OS-level virtualization, with its capability to isolate multiple user-space environments and to allow for their co-existence within the same OS kernel, promises to provide many of the advantages of machine virtualization with high levels of responsiveness and performance; I/O Virtualization allows physical NICs/HBAs to take traffic from multiple VMs; network virtualization, with its capability to create logical network overlays that are independent of the underlying physical topology and IP addressing, provides the fundamental ground on top of which evolved network services can be realized with an unprecedented level of dynamicity and flexibility; the increasingly adopted paradigm of Software-Defined Networking (SDN) promises to extend this flexibility to the control and data planes of network paths. These technologies have to be inter-mixed and integrated in an intelligent way, to support workloads that are increasingly demanding in terms of absolute performance, responsiveness and interactivity, and have to respect well-specified Service- Level Agreements (SLAs), as needed for industrial-grade provided services. Indeed, among emerging and increasingly interesting application domains for virtualization, we can find big-data application workloads in cloud infrastructures, interactive and real-time multimedia services in the cloud, including real-time big-data streaming platforms such as used in real-time analytics supporting nowadays a plethora of application domains. Distributed cloud infrastructures promise to offer unprecedented responsiveness levels for hosted applications, but that is only possible if the underlying virtualization technologies can overcome most of the latency impairments typical of current virtualized infrastructures (e.g., far worse tail-latency). What is more, in data communications Network Function Virtualization (NFV) is becoming a key technology enabling a shift from supplying hardware-based network functions, to providing them in a software-based and elastic way. In conjunction with (public and private) cloud technologies, NFV may be used for constructing the foundation for cost-effective network functions that can easily and seamlessly adapt to demand, still keeping their major carrier-grade characteristics in terms of QoS and reliability. The Workshop on Virtualization in High-Performance Cloud Computing (VHPC) aims to bring together researchers and industrial practitioners facing the challenges posed by virtualization in order to foster discussion, collaboration, mutual exchange of knowledge and experience, enabling research to ultimately provide novel solutions for virtualized computing systems of tomorrow. The workshop will be one day in length, composed of 20 min paper presentations, each followed by 10 min discussion sections, and lightning talks, limited to 5 minutes. Presentations may be accompanied by interactive demonstrations. TOPICS Topics of interest include, but are not limited to: - Management, deployment and monitoring of virtualized environments - Language-process virtual machines - Performance monitoring for virtualized/cloud workloads - Virtual machine monitor platforms - Topology management and optimization for distributed virtualized applications - Paravirtualized I/O - Improving I/O and network virtualization including use of RDMA, Infiniband, PCIe - Improving performance in VM access to GPUs, GPU clusters, GP-GPUs - HPC storage virtualization - Virtualized systems for big-data and analytics workloads - Optimizations and enhancements to OS virtualization support - Improving OS-level virtualization and its integration within cloud management - Performance modelling for virtualized/cloud applications - Heterogeneous virtualized environments - Network virtualization - Software defined networking - Network function virtualization - Hypervisor and network virtualization QoS and SLAs - Cloudbursting - Evolved European grid architectures including such based on network virtualization - Workload characterization for VM-based environments - Optimized communication libraries/protocols in the cloud - System and process/bytecode VM convergence - Cloud frameworks and APIs - Checkpointing/migration of VM-based large compute jobs - Job scheduling/control/policy with VMs - Instrumentation interfaces and languages - VMM performance (auto-)tuning on various load types - Cloud reliability, fault-tolerance, and security - Research, industrial and educational use cases - Virtualization in cloud, cluster and grid environments - Cross-layer VM optimizations - Cloud HPC use cases including optimizations - Services in cloud HPC - Hypervisor extensions and tools for cluster and grid computing - Cluster provisioning in the cloud - Performance and cost modelling - Languages for describing highly-distributed compute jobs - VM cloud and cluster distribution algorithms, load balancing - Instrumentation interfaces and languages - Energy-aware virtualization Important Dates Rolling Paper registration May 30, 2014 - Full paper submission July 4, 2014 - Acceptance notification October 3, 2014 - Camera-ready version due August 26, 2014 - Workshop Date TPC CHAIR Michael Alexander (chair), TU Wien, Austria Anastassios Nanos (co-chair), NTUA, Greece Tommaso Cucinotta (co-chair), Bell Labs, Dublin, Ireland PROGRAM COMMITTEE Costas Bekas, IBM Jakob Blomer, CERN Roberto Canonico, University of Napoli Federico II, Italy Paolo Costa, MS Research Cambridge, England Jorge Ejarque Artigas, Barcelona Supercomputing Center, Spain William Gardner, University of Guelph, USA Balazs Gerofi, University of Tokyo, Japan Krishna Kant, Temple University, USA Romeo Kinzler, IBM Nectarios Koziris, National Technical University of Athens, Greece Giuseppe Lettieri, University of Pisa, Italy Jean-Marc Menaud, Ecole des Mines de Nantes, France Christine Morin, INRIA, France Dimitrios Nikolopoulos, Queen's University of Belfast, UK Herbert Poetzl, VServer, Austria Luigi Rizzo, University of Pisa, Italy Josh Simons, VMWare, USA Borja Sotomayor, University of Chicago, USA Vangelis Tasoulas, Simula Research Lab, Norway Yoshio Turner, HP Labs, USA Kurt Tutschku, Blekinge Institute of Technology, Sweden Chao-Tung Yang, Tunghai University, Taiwan PAPER SUBMISSION-PUBLICATION Papers submitted to the workshop will be reviewed by at least two members of the program committee and external reviewers. Submissions should include abstract, key words, the e-mail address of the corresponding author, and must not exceed 10 pages, including tables and figures at a main font size no smaller than 11 point. Submission of a paper should be regarded as a commitment that, should the paper be accepted, at least one of the authors will register and attend the conference to present the work. Accepted papers will be published in the Springer LNCS series - the format must be according to the Springer LNCS Style. Initial submissions are in PDF; authors of accepted papers will be requested to provide source files. Format Guidelines: http://www.springer.de/comp/lncs/authors.html EasyChair Abstract Submission Link: https://www.easychair.org/conferences/?conf=europar2014ws GENERAL INFORMATION The workshop is one day in length and will be held in conjunction with Euro-Par 2014, 25-29 August, Porto, Portugal

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[libvirt-users] shutdown all domains
by Peng Yu 15 Mar '14

15 Mar '14

Hi, The following shows a script to shutdown all domains. Is this still not available in libvirt-bin? If not, will it added in the future? Thanks. http://lists.centos.org/pipermail/centos-virt/2009-November/001358.html -- Regards, Peng

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Re: [libvirt-users] Scheduler Parameters
by Faruk Caglar 15 Mar '14

15 Mar '14

Hi All, I have emailed the message below to Arnaud, but it got failed. I will need to have get set scheduling parameters (including timeslice, ratelimit, weight, cap for Xen) thru C# libvirt bindings. is there any plan to have those wrappers soon? Thanks Faruk On Fri, Mar 14, 2014 at 4:06 PM, Faruk Caglar <faruk.caglar(a)vanderbilt.edu>wrote: > > Hi Arnaud, > > Thanks for all your work for the libvirt C# bindings. > > Recently I have started to use libvirt C# bindings for my doctoral > research. However, > I have noticed that it currently does not support the get/set scheduler > parameters. > > Do you have any plan to implement those in a near future? > > Thanks > Faruk > Vanderbilt University > >

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[libvirt-users] questions on clock catchup
by Jincheng Miao 13 Mar '14

13 Mar '14

In http://libvirt.org/formatdomain.html#elementsTime , we could find there are three attributes of catchup tickpolicy: limit, threshold and slew. " The catchup element has three optional attributes, each a positive integer. The attributes are threshold, slew, and limit. " The xml format likes: <clock offset='utc'> <timer name='rtc' tickpolicy='catchup'> <catchup slew='123'/> or <catchup threshold='123'/> or <catchup limit='123'/> </timer> </clock> But there is no further explanation. Does anyone know what's the meaning of these attributes ? Best wishes, Jincheng Miao

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Re: [libvirt-users] PCI Passthrough of 2 identical devices
by Thomas Jagoditsch 13 Mar '14

13 Mar '14

hi laine, thx for the fast answer. i tried VFIO as it seems supported and got at least one step further. starting the guest with one of the DVB cards is possible now, even when the other card is in the hosts pci config (not removed soft or hard). adding the second card/device thru ... > <hostdev mode='subsystem' type='pci' managed='yes'> > <driver name='vfio'/> > <source> > <address domain='0x0000' bus='0x03' slot='0x00' function='0x0'/> > </source> > <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> > </hostdev> > <hostdev mode='subsystem' type='pci' managed='yes'> > <driver name='vfio'/> > <source> > <address domain='0x0000' bus='0x03' slot='0x01' function='0x0'/> > </source> > <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> > </hostdev> will render the guest unbootable: --><-- /var/log/libvirt/qemu/tvBackend.log 2014-03-12 16:48:48.018+0000: starting up LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin QEMU_AUDIO_DRV=none /usr/bin/kvm-spice -name tvBackend -S -machine pc-i440fx-1.5,accel=kvm,usb=off -m 1024 -realtime mlock=off -smp 2,sockets=2,cores=1,threads=1 -uuid f647bb10-7f9a-f94c-33b9-3d99e8e753e0 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/tvBackend.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/kvm/tvBackend.img,if=none,id=drive-virtio-disk0,format=raw -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive if=none,id=drive-ide0-1-0,readonly=on,format=raw -device ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev tap,fd=29,id=hostnet0,vhost=on,vhostfd=30 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:10:26:ec,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -vnc 127.0.0.1:2 -vga std -device vfio-pci,host=03:00.0,id=hostdev0,bus=pci.0,addr=0x6 -device vfio-pci,host=03:01.0,id=hostdev1,bus=pci.0,addr=0x7 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 W: kvm binary is deprecated, please use qemu-system-x86_64 instead char device redirected to /dev/pts/0 (label charserial0) qemu-system-x86_64: -device vfio-pci,host=03:00.0,id=hostdev0,bus=pci.0,addr=0x6: Warning, device 0000:03:00.0 does not support reset qemu-system-x86_64: -device vfio-pci,host=03:01.0,id=hostdev1,bus=pci.0,addr=0x7: Warning, device 0000:03:01.0 does not support reset qemu-system-x86_64: -device vfio-pci,host=03:01.0,id=hostdev1,bus=pci.0,addr=0x7: vfio: Error: Failed to setup INTx fd: Device or resource busy qemu-system-x86_64: -device vfio-pci,host=03:01.0,id=hostdev1,bus=pci.0,addr=0x7: Device initialization failed. qemu-system-x86_64: -device vfio-pci,host=03:01.0,id=hostdev1,bus=pci.0,addr=0x7: Device 'vfio-pci' could not be initialized 2014-03-12 16:48:48.639+0000: shutting down --><-- /var/log/syslog Mar 12 18:07:45 father kernel: [34317.290958] genirq: Flags mismatch irq 16. 00000000 (vfio-intx(0000:03:01.0)) vs. 00000080 (ehci_hcd:usb1) --><-- as i have only 2 pci slots on the board and no other board with serious VT-d/IOMMU support i have no way to swap slots. as the second card shared IRQ 16 with the ehci controller i soft-removed the ehci controller for testing purposes and voila the guest started with the 2 cards successfully inside, even mythtv works ... for now. i hope to find a way to somehow rearrange the irqs as i sometimes need USB on the machine :D wbr,tja... ----- Ursprüngliche Mail ----- Von: "Laine Stump" <laine(a)laine.org> An: libvirt-users(a)redhat.com CC: "Thomas Jagoditsch" <tja(a)tjasoft.com> Gesendet: Mittwoch, 12. März 2014 16:13:15 Betreff: Re: [libvirt-users] PCI Passthrough of 2 identical devices On 03/12/2014 06:29 AM, Thomas Jagoditsch wrote: > hi, > > i have a small trouble with pci-passthrough. > > i have a working configuration passing a tv card into the guest, all is fine and dandy. > as soon as i add my second identical card into the host i cant start the guest anymore, whether i add the second card to the guest or not. error message is identical in both cases. > > message of virt-manager|virsh|libvirtd.log: >> libvirtError: internal error: Unable to reset PCI device 0000:03:00.0: internal error: Active 0000:03:01.0 devices on bus with 0000:03:00.0, not doing bus reset > the host is a plain kvm server, no services or apps whatsoever accessing the two devices. > the other guests (firewall and fileserver) do not use the cards either. The problem is that for kvm device assignment to work properly, the device needs to be reset by libvirt after detaching it from the host driver and before passing it to kvm, and these devices you are trying to reset support neither "function level reset" nor "power management reset", so libvirt must fallback to resetting the entire bus where the device is plugged in. But of course it can't do that if the bus contains other devices that are in use by the host or by other guests. If your host OS is new enough to support vfio device assignment, I would suggest using that instead (if you update to the latest upstrem libvirt it will automatically use VFIO if it is available, otherwise you can add "<driver name='vfio'/>" to the device definition to assure that it will either use vfio or fail. You will also probably need to run "modprobe vfio" before starting the guest). The reason I suggest this is that VFIO will automatically handle resetting the assigned devices whenever necessary, compared to the old KVM device assignment, where libvirt must always reset the device because it has no better information about whether or not it is really necessary. Another thing you can try is plugging one of the cards into a different slot - if you can find a slot that is on a different bus, then libvirt will be able to reset the bus containing the card that will be assigned (since there won't be any other active devices on that same bus). > > if i (soft) remove the 2nd card via >> echo -n 1 > /sys/bus/pci/devices/0000\:03\:01.0/remove > i can start the guest with the 1st card assigned. > > thx for anyone looking into this. libvirt attempts to reset the > > wbr,tja.. > > > PS: > host: >> root@father:~# lspci >> 00:00.0 Host bridge: Intel Corporation 4th Gen Core Processor DRAM Controller (rev 06) >> 00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06) >> 00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05) >> 00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04) >> 00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-V (rev 05) >> 00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05) >> 00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5) >> 00:1c.3 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d5) >> 00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05) >> 00:1f.0 ISA bridge: Intel Corporation H87 Express LPC Controller (rev 05) >> 00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05) >> 00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05) >> 02:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 03) >> 03:00.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01) >> 03:01.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01) >> root@father:~# cat /etc/lsb-release >> DISTRIB_ID=Ubuntu >> DISTRIB_RELEASE=13.10 >> DISTRIB_CODENAME=saucy >> DISTRIB_DESCRIPTION="Ubuntu 13.10" >> root@father:~# uname -a >> Linux father 3.11.0-18-generic #32-Ubuntu SMP Tue Feb 18 21:11:14 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux >> root@father:~# libvirtd --version >> libvirtd (libvirt) 1.1.1 > guest: >> root@father:~# cat /etc/libvirt/qemu/tvBackend.xml >>  >> >> <domain type='kvm'> >> <name>tvBackend</name> >> <uuid>f647bb10-7f9a-f94c-33b9-3d99e8e753e0</uuid> >> <memory unit='KiB'>1048576</memory> >> <currentMemory unit='KiB'>1048576</currentMemory> >> <vcpu placement='static'>2</vcpu> >> <os> >> <type arch='x86_64' machine='pc-i440fx-1.5'>hvm</type> >> <boot dev='hd'/> >> </os> >> <features> >> <acpi/> >> <apic/> >> <pae/> >> </features> >> <clock offset='utc'/> >> <on_poweroff>destroy</on_poweroff> >> <on_reboot>restart</on_reboot> >> <on_crash>restart</on_crash> >> <devices> >> <emulator>/usr/bin/kvm-spice</emulator> >> <disk type='file' device='disk'> >> <driver name='qemu' type='raw'/> >> <source file='/kvm/tvBackend.img'/> >> <target dev='vda' bus='virtio'/> >> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> >> </disk> >> <disk type='block' device='cdrom'> >> <driver name='qemu' type='raw'/> >> <target dev='hdc' bus='ide'/> >> <readonly/> >> <address type='drive' controller='0' bus='1' target='0' unit='0'/> >> </disk> >> <controller type='usb' index='0'> >> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> >> </controller> >> <controller type='pci' index='0' model='pci-root'/> >> <controller type='ide' index='0'> >> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> >> </controller> >> <interface type='bridge'> >> <mac address='52:54:00:10:26:ec'/> >> <source bridge='brlan'/> >> <model type='virtio'/> >> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> >> </interface> >> <serial type='pty'> >> <target port='0'/> >> </serial> >> <console type='pty'> >> <target type='serial' port='0'/> >> </console> >> <input type='mouse' bus='ps2'/> >> <graphics type='vnc' port='-1' autoport='yes'/> >> <video> >> <model type='vga' vram='9216' heads='1'/> >> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> >> </video> >> <hostdev mode='subsystem' type='pci' managed='yes'> >> <source> >> <address domain='0x0000' bus='0x03' slot='0x00' function='0x0'/> >> </source> >> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> >> </hostdev> >> <memballoon model='virtio'> >> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> >> </memballoon> >> </devices> >> </domain> -- thomas jagoditsch - tjaSoft softWareEntwicklung - netzWerkManagement

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[libvirt-users] libvirtError: this function is not supported by the connection driver: virInterfaceDefineXML
by Sijo Jose 13 Mar '14

13 Mar '14

Hi, Could anyone help I'm getting the following error when I tried to add a new network interface. DETAILS Connection --------------------------- import libvirt conn = libvirt.open('qemu:///system') Interface XML ---------------------- <interface type="bridge" name="br0"> <start mode="onboot"/> <mtu size="1500"/> <protocol family="ipv4"> <dhcp/> </protocol> <bridge stp="off" delay="0.01"> <interface type="ethernet" name="eth0"> <mac address="ab:bb:cc:dd:ee:ff"/> </interface> <interface type="ethernet" name="eth1"/> </bridge> </interface> In [96]: conn.interfaceDefineXML(interfacexml,0) ---------------------------------------------------------------------------libvirtError Traceback (most recent call last)/home/saju/<ipython-input-96-0536ffe3fa23> in <module>()----> 1 conn.interfaceDefineXML(br1xml,0) /usr/lib/python2.7/dist-packages/libvirt.pyc in interfaceDefineXML(self, xml, flags) 2750 libvirtd. """ 2751 ret = libvirtmod.virInterfaceDefineXML(self._o, xml, flags)-> 2752 if ret is None:raise libvirtError('virInterfaceDefineXML() failed', conn=self) 2753 __tmp = virInterface(self, _obj=ret) 2754 return __tmp libvirtError: this function is not supported by the connection driver: virInterfaceDefineXML Regards Sijo Jose

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