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Andrea Bolognani
3f01ecd830
I've seen examples in the wild of the cluster attribute having non-zero value on x86_64. This is obviously quite confusing, but it's the information that Linux exposes to userspace and we don't really have a way to tell apart a valid die/cluster ID from a dummy one. What ultimately matters is that the underlying assumptions about topology are respected, which they are: in the x86_64 cases that I have analyzed, for example, each "cluster" contained exactly one core, so any program that would use this information to influence guest topology decisions would be unaffected by the additional level showing up in the hierarchy. In an attempt to reduce confusion, remove any reference to any specific value for the attributes having any special meaning attached to it. In fact, since there are plans to make it possible to create guests with multiple CPU clusters on x86_64, rework the note into a more generic warning cautioning users that an attribute showing up here does not imply that the same attribute can be used when defining a guest CPU topology. Signed-off-by: Andrea Bolognani <abologna@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@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:
https://libvirt.org
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:
* users@lists.libvirt.org (**for user discussions**)
* devel@lists.libvirt.org (**for development only**)
Further details on contacting the project are available on the website:
https://libvirt.org/contact.html