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.
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Andrea Bolognani c3be8bb423 qemu: Clarify QEMU_CAPS_KVM
This capability is documented as having one meaning (whether
KVM is enabled by default) but is actually assigned two other
meanings over its life: whether the query-kvm QMP command is
available at first, and later on whether KVM is usable / was
used during probing.

Since the query-kvm QMP command was available in 1.5.0, we
can avoid probing for it; additionally, we can simplify the
logic by setting the flag when it applies instead of initially
setting it and then clearing it when it doesn't.

The flag's description is also updated to reflect reality.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2018-09-17 14:52:41 +02:00
.gnulib@68df637b5f build: Fix accidental revert of .gnulib update 2018-07-19 16:15:51 -04:00
build-aux syntax-check: Check for incorrect indentation in function body 2018-09-17 13:29:01 +02:00
docs news: Announce dropping support for Xen 4.4 and 4.5 2018-09-14 11:47:08 -06:00
examples apparmor: fix ptrace rules with kernel 4.18 2018-08-27 10:46:45 +02:00
gnulib Update to latest gnulib 2018-03-12 11:27:54 +00:00
include/libvirt qemu: Add entry for balloon stat stat-disk-caches 2018-07-16 17:42:23 -04:00
m4 libxl: drop support for Xen < 4.6 2018-09-14 11:47:08 -06:00
po po: refresh translations from zanata 2018-07-31 12:34:06 +01:00
src qemu: Clarify QEMU_CAPS_KVM 2018-09-17 14:52:41 +02:00
tests qemu: Drop QEMU_CAPS_ENABLE_KVM 2018-09-17 14:52:34 +02:00
tools tools: remove blank first line in function body 2018-09-17 13:29:01 +02:00
.color_coded.in Add color_coded support 2017-05-09 09:51:11 +02:00
.ctags maint: Make ctags work out of the box 2013-07-18 08:47:21 +02:00
.dir-locals.el build: avoid tabs that failed syntax-check 2012-09-06 09:43:46 -06:00
.gitignore po: minimize & canonicalize translations stored in git 2018-04-19 11:11:08 +01:00
.gitmodules gnulib: switch to use https:// instead of git:// protocol 2018-03-19 16:32:34 +00:00
.gitpublish git: add config file telling git-publish how to send patches 2018-04-23 11:36:09 +01:00
.mailmap AUTHORS: Add Katerina Koukiou 2018-07-17 17:01:19 +02:00
.travis.yml travis: Add MinGW builds 2018-06-15 17:45:27 +02:00
.ycm_extra_conf.py.in Add YouCompleteMe support 2017-05-09 09:51:11 +02:00
ABOUT-NLS po: provide custom make rules for po file management 2018-04-19 10:35:58 +01:00
AUTHORS.in AUTHORS: Add Katerina Koukiou 2018-07-17 17:01:19 +02:00
autogen.sh po: provide custom make rules for po file management 2018-04-19 10:35:58 +01:00
bootstrap maint: update to latest gnulib 2018-07-14 09:10:03 +02:00
bootstrap.conf vsh: Fix broken build on mingw 2018-08-28 08:31:32 +02:00
cfg.mk cfg.mk: change syntax-check rule for VIR_AUTOCLOSE variable initialization 2018-09-12 17:35:38 +02:00
ChangeLog-old Fix typos in src/* 2014-04-21 16:49:08 -06:00
config-post.h Revert "build: undef WITH_JANSSON for SETUID_RPC_CLIENT" 2018-08-13 15:50:01 +02:00
configure.ac Post-release version bump to 4.8.0 2018-09-04 08:07:17 +02:00
COPYING maint: follow recommended practice for using LGPL 2013-05-20 14:15:21 -06:00
COPYING.LESSER maint: Remove control characters from LGPL license file 2015-09-25 09:16:24 +02:00
libvirt-admin.pc.in Add libvirt-admin library 2015-06-16 13:46:20 +02:00
libvirt-lxc.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt-qemu.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt.spec.in rpm: increase min required Fedora to 27 2018-09-11 08:52:27 +02:00
Makefile.am Forget last daemon/ dir artefacts 2018-07-27 15:44:38 +02:00
Makefile.nonreentrant Remove backslash alignment attempts 2017-11-03 13:24:12 +01:00
mingw-libvirt.spec.in cpu: move the CPU map data files into a src/cpu_map directory 2018-08-28 12:08:21 +01:00
README Provide a useful README file 2017-05-22 17:01:37 +01:00
README-hacking docs: update all GIT repo examples to use https:// protocol 2018-03-21 14:48:01 +00:00
README.md Add CII best practices badge 2017-10-13 16:08:01 +01:00
run.in run: Fix LIBVIRTD_PATH 2018-07-24 12:10:21 -04:00

Build Status CII Best Practices

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 2.1 (or later). See the files COPYING.LESSER and COPYING for full license terms & conditions.

Installation

Libvirt uses the GNU Autotools build system, so in general can be built and installed with the usual commands. For example, to build in a manner that is suitable for installing as root, use:

$ ./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var
$ make
$ sudo make install

While to build & install as an unprivileged user

$ ./configure --prefix=$HOME/usr
$ make
$ make install

The libvirt code relies on a large number of 3rd party libraries. These will be detected during execution of the configure script and a summary printed which lists any missing (optional) dependencies.

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:

Further details on contacting the project are available on the website:

https://libvirt.org/contact.html