ab29ddfdf8
It would be nice to be able to test the mediated device capabilities without having physical hardware which supports it. The 'mtty' kernel module presents a virtual parent device which is capable of creating 'fake' mediated devices, and as such it would be useful for testing. However, the 'mtty' device is not part of an existing device subsystem (e.g. PCI, etc), so libvirt ignores it and it does not get added to the node device list. And because it does not get added to the node device list, it cannot be used to create child mdevs using `virsh nodedev-create`. There is already a node device type capability VIR_NODE_DEV_CAP_MDEV_TYPES that indicates whether a device supports creating child mediated devices, but libvirt assumes that this is a nested capability (in other words, it assumes that the primary capability of a device is something like PCI). If we allow this MDEV_TYPES capability to be a primary device capability, then we can support virtual devices like 'mtty' as a parent for mediated devices. See https://bugzilla.redhat.com/show_bug.cgi?id=2107031 Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@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: