Downstream CI recently encountered failures of libxlxml2domconfigtest when building libvirt packages against Xen 4.17 rc3 packages. The test fails on vnuma_hvm config, where suddently the actual json produced by libxl_domain_config_to_json() contains a 'pnode' entry in the 'vnuma_nodes' list, which is absent in the expected json. It appears the test has thus far passed by luck. E.g. I was able to make the test pass in the failing environment by changing the meson buildtype from debugoptimized to debug. When a VM config contains vnuma settings, libxlMakeVnumaList() checks if the number of requested vnuma nodes exceeds the number of physical nodes. The number of physical nodes is retrieved with libxl_get_physinfo(), which can return wildly different results in the context of unit tests. This change mocks libxl_get_physinfo() to return consistent results. All fields of the libxl_physinfo struct are set to 0 except nr_nodes, which is set to 6 to ensure the vnuma_hvm configuration is properly tested. Signed-off-by: Jim Fehlig <jfehlig@suse.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
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: