The -cpu arg gained support for feature=on|off syntax for the x86 emulator in 2.4.0 commit 38e5c119c2925812bd441450ab9e5e00fc79e662 Author: Eduardo Habkost <ehabkost@redhat.com> Date: Mon Mar 23 17:29:32 2015 -0300 target-i386: Register QOM properties for feature flags Most other targets gained this syntax even earlier in 1.4.1 commit 1590bbcb02921dfe8e3cf66e3a3aafd31193babf Author: Andreas Färber <afaerber@suse.de> Date: Mon Mar 3 23:33:51 2014 +0100 cpu: Implement CPUClass::parse_features() for the rest of CPUs CPUs who do not provide their own implementation of feature parsing will treat each option as a QOM property and set it to the supplied value. There appears no reason to keep supporting "+|-feature" syntax, given the current minimum QEMU version. Reviewed-by: Jiri Denemark <jdenemar@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@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: