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This flag was originally created to indicate that either 1) the build platform wasn't linux, 2) the build platform was linux, but the kernel was too old to have macvtap support. Since there was already a switch there, the ability to also disable it when 3) the kernel supports macvtap but the user doesn't want it, was added in. I don't think that (3) was ever an intentional goal, just something that grew naturally out of having the flag there in the first place (unless possibly the original author wanted a way to quickly disable their new code in case it caused regressions elsewhere). Now that the check for (2) has been removed, WITH_MACVTAP is just checking (1) and (3), but (3) is pointless (because the extra code in libvirt itself is miniscule, and the only external library needed for it is libnl, which is also required for other unrelated features (and itself has no subordinate dependencies and takes up < 1MB on disk)). We can therfore eliminate the WITH_MACVTAP flag, as it is functionally equivalent to WITH_LIBNL (which implies __linux__). Signed-off-by: Laine Stump <laine@redhat.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: