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Libvirt provides a portable, long term stable C API for managing the
virtualization technologies provided by many operating systems. It
includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware
vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER
Hypervisor.
8b6f831c8e
portgroup elements are located in the toplevel of <network> objects. There can be multiple <portgroup> elements, and they each have a unique name attribute. Add, delete, and modify are all supported for portgroup. When deleting a portgroup, only the name must be specified in the provided xml - all other attributes and subelements are ignored for the purposes of matching and existing portgroup. The bridge driver and virsh already know about the portgroup element, so providing this backend should cause the entire stack to work. Note that in the case of portgroup, there is no external daemon based on the portgroup config, so nothing must be restarted. It is important to note that guests make a copy of the appropriate network's portgroup data when they are started, so although an updated portgroup's configuration will have an affect on new guests started after the cahange, existing guests won't magically have their bandwidth changed, for example. If something like that is desired, it will take a lot of redesign work in the way network devices are setup (there is currently no link from the network back to the individual interfaces using it, much less from a portgroup within a network back to the individual interfaces). |
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| README | ||
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LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>