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Cloud-Hypervisor is a KVM virtualization using hypervisor. It functions similarly to qemu and the libvirt Cloud-Hypervisor driver uses a very similar structure to the libvirt driver. The biggest difference from the libvirt perspective is that the "monitor" socket is seperated into two sockets one that commands are issued to and one that events are notified from. The current implementation only uses the command socket (running over a REST API with json encoded data) with future changes to add support for the event socket (to better handle shutdowns from inside the VM). This patch adds support for the following initial VM actions using the Cloud-Hypervsior API: * vm.create * vm.delete * vm.boot * vm.shutdown * vm.reboot * vm.pause * vm.resume To use the Cloud-Hypervisor driver, the v15.0 release of Cloud-Hypervisor is required to be installed. Some additional notes: * The curl handle is persistent but not useful to detect ch process shutdown/crash (a future patch will address this shortcoming) * On a 64-bit host Cloud-Hypervisor needs to support PVH and so can emulate 32-bit mode but it isn't fully tested (a 64-bit kernel and 32-bit userspace is fine, a 32-bit kernel isn't validated) Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: William Douglas <william.douglas@intel.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: