6f06ae15d0
So far we assumed that any vhostuser interface is plugged into an OVS bridge and thus 'ovs-vsctl' exists. But this is not always true. In testing scenarios it is possible to create a vhostuser interface with this tool dpdk-testpmd (part of dpdk RPM) which creates/connects to UNIX socket needed for vhostuser. Of course, since there is no OVS then there is no interface name in which case virNetDevOpenvswitchGetVhostuserIfname() should return 0. The rest of APIs that assume OVS are not 'fixed' because we still want them to fail (e.g. getting statistics, plugging interface into an OVS bridge, unplugging it from an OVS bridge, ...). The only API that is fixed is virNetDevOpenvswitchGetVhostuserIfname() because it is called explicitly when starting a guest (and callers are okay if no name was found). The other way to fix this bug seems to be to simply require 'ovs-vsctl' on spec file level, but that is too heavy gun given that vhostuser is used by a small set of our users (assumption made on requirements for vhostuser). Also, this way would drag in yet another dependency for all users (even those who want minimal libvirt). Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1913156 Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com> |
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Libvirt API for virtualization
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.
For some of these hypervisors, it provides a stateful management daemon which runs on the virtualization host allowing access to the API both by non-privileged local users and remote users.
Layered packages provide bindings of the libvirt C API into other languages including Python, Perl, PHP, Go, Java, OCaml, as well as mappings into object systems such as GObject, CIM and SNMP.
Further information about the libvirt project can be found on the website:
License
The libvirt C API is distributed under the terms of GNU Lesser General Public License, version 2.1 (or later). Some parts of the code that are not part of the C library may have the more restrictive GNU General Public License, version 2.0 (or later). See the files COPYING.LESSER and COPYING for full license terms & conditions.
Installation
Instructions on building and installing libvirt can be found on the website:
https://libvirt.org/compiling.html
Contributing
The libvirt project welcomes contributions in many ways. For most components the best way to contribute is to send patches to the primary development mailing list. Further guidance on this can be found on the website:
https://libvirt.org/contribute.html
Contact
The libvirt project has two primary mailing lists:
- libvirt-users@redhat.com (for user discussions)
- libvir-list@redhat.com (for development only)
Further details on contacting the project are available on the website: