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Questions tagged [libvirt]

libvirt is an open source API, daemon and management tool for managing platform virtualization.[1] It can be used to manage Linux KVM, Xen, VMware ESX,qemu and other virtualization technologies. These APIs are widely used in Orchestration Layer for Hypervisors in the development of a cloud based solution.

The virtualization API

libvirt is:

  • A toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes), see our project goals for details.
  • Free software available under the GNU Lesser General Public License.
  • A long term stable C API
  • A set of bindings for common languages
  • A CIM provider for the DMTF virtualization schema
  • A QMF agent for the AMQP/QPid messaging system

libvirt supports:

  • The KVM/QEMU Linux hypervisor
  • The Xen hypervisor on Linux and Solaris hosts.
  • The LXC Linux container system
  • The OpenVZ Linux container system
  • The User Mode Linux paravirtualized kernel
  • The VirtualBox hypervisor
  • The VMware ESX and GSX hypervisors
  • The VMware Workstation and Player hypervisors
  • The Microsoft Hyper-V hypervisor
  • Virtual networks using bridging, NAT, VEPA and VN-LINK.
  • Storage on IDE/SCSI/USB disks, FibreChannel, LVM, iSCSI, NFS and filesystems

libvirt provides:

  • Remote management using TLS encryption and x509 certificates
  • Remote management authenticating with Kerberos and SASL
  • Local access control using PolicyKit
  • Zero-conf discovery using Avahi multicast-DNS
  • Management of virtual machines, virtual networks and storage
  • Portable client API for Linux, Solaris and Windows

More infos:

556 questions
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Virtualize a Python3 script with its dependencies (libs & external programs)

I have developed a Python3 program/script that is fairly big. It depends on several external apps, including some apps I don't have a full control on. Just for example, I am using Selenium WebDriver and it happens that for some reason, it crashes…
reike
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KVM/Libvirt: How do i get total traffic used by KVM/libvirt Virtual machine

i'm want to get the total bandwidth used by a kvm/libvirt VM in C (language). is there function in libvirt? so, for example if a VM crosses 1TB then i would suspend its network.
Shashwat shagun
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Using a struct that contains a union and a type member

I'm trying to debug a program I'm writing that's using the libvirt library in C. In part of the program I'm being returned the following struct: struct virTypedParameter { char field[VIR_TYPED_PARAM_FIELD_LENGTH]; int type; union { …
user731842
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Cannot get all memory stats for libvirt domain

I'm experiencing some problems with virtual machine (guest windows 7, x86_64), running under qemu-kvm and managed by libvirt (created and ran mostly from virt-manager). The problem is that I cannot get full memory statistics either from…
Binpord
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kitchen create with vagrant-libvirt plugin

I tried to do kitchen create with this kitchen.yml: --- driver_plugin: vagrant transport: name: ssh ssh_key: /home/aida/Documents/chef-repo/.chef/aida.pem provisioner: name: chef_solo driver_config: provider: libvirt platforms: -…
Aira
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Virtualization with xHCI-IOV

I need some documents about it (must be detailed) and,is KVM support it???? If yes, how to enable it and use it? My goal is to virtualize intel usb controller(onboard 0000:00:14.0) and distribute it to 2 guests. Passthrough can only be used by 1…
SirTeddy
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libvirt qemu-system-arm, error: XML error: No PCI buses available

I am trying to run a linux image i created with buildroot with libvirt. If i use qemu-system-arm directly, everything works as intended: /usr/bin/qemu-system-arm \ -M versatilepb \ -kernel output/images/zImage \ -dtb output/images/versatile-pb.dtb…
sp85qZoxf6
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virsh support for docker

Is there any libvirt support for docker? How to access docker containers using virsh tool or libvirt? Docker uses linux lxc, there is a libvirt support for lxc, But I am unable to access containers created by docker using virsh -c lxc:///
praveenraj
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Debian Network-Configuration for KVM - Provider OVH

I need some help to configure the network for my KVM. My Hostingprovider is OVH, and since they are a bit different, I'm in need of help. My old Network-Interfaces File: auto lo iface lo inet loopback auto eth0 iface eth0 inet static address…
jerr0w
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QEMU command line replace with libvirt

I am currently using the qemu command line arguments to launch a VM. My command line is: /home/gnayan/QEMU-devel/qemu-ubuntu/qemu/x86_64-softmmu/qemu-system-x86_64 -trace events=/home/gnayan/qemu_events -drive…
Haswell
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Using IVSHMEM with libvirt virt-manager

Using ivshmem in qemu requires the following steps. Start ivshmem server in host ./ivshmem_server which will create a unix domain socket /tmp/ivshmem_socket Start qemu with the following command line options- -chardev…
Sahil Singh
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windows7 stop at "starting windows" while intalling on kvm

After updating my KVM to a newer version,I cannot install windows7 anymore. Following is the command to install: virt-install --name win7 --memory 8192 --vcpu sockets=1,cores=8,threads=1 \ --cdrom=/usr/local/kvm/iso/win7.iso \ --disk…
terence chuen
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Intel Turbo boost for KVM Guest

Please excuse me if this is a stupid question, however, I'm curious why I'm not seeing any clock speed differences when using fedora as a guest VM via KVM/QEMU. Perhaps this is a rather dumb way of concluding such things, but when I do cat…
comjf
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KVM guest os boot error

I'm trying to boot up a guest os to continue with my work but I have a problem with my virsh installation. Here is the part of installation script: qemu-img create -f qcow2 -o preallocation=metadata ~/images/${vm_name}.qcow2 ${pool_size}G # create…
FLASh
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how to configure/start vm with just libvirt and vhost-user

I am trying to start my VM with 2 Virtio interfaces as a vhost-user interface Following is the relevant section of my domain xml
r2r
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