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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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a27031c408
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Eric Blake a27031c408 snapshot: Define explicit flags for snapshot xml 
Commit f609cb85 (0.9.5) introduced virDomainSnapshotGetXMLDesc()'s use
of @flags as a subset of virDomainXMLFlags, documenting that 2 of the
3 flags defined at the time would never be valid.  Later, commit
28f8dfdc (1.0.0) introduced a new flag, VIR_DOMAIN_XML_MIGRATABLE, but
did not adjust the snapshot documentation to declare it as invalid.
However, since the flag is not accepted as valid by any of the
drivers (remote is just passthrough; esx and vbox don't support flags;
qemu, test, and vz only support VIR_DOMAIN_XML_SECURE), and it is
unlikely that the domain state saved off during a snapshot creation
needs to be migration-friendly (as the snapshot is not the source of
a migration), it is easier to just define an explicit set of supported
flags directly related to the snapshot API rather than trying to
borrow from domain API, and risking confusion if even more domain
flags are added later (in fact, I have an upcoming patch that plans to
add a new flag to virDomainGetXMLDesc that makes no sense for
snapshots).

There is no API or ABI impact (since we purposefully used unsigned int
rather than an enum type in public API, and since the new flag name
carries the same value as the reused name).

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2019-02-19 21:34:42 -06:00
.gnulib@8089c00979 maint: update gnulib for syntax-check on BSD 2019-01-07 13:54:07 -06:00
build-aux Fix header ifdef check for config-post.h in VPATH build 2018-12-14 14:08:51 +00:00
docs Remove remaining references to kqemu 2019-02-19 08:33:50 +01:00
examples apparmor: Move static data out of examples/ 2019-01-10 16:48:12 +01:00
gnulib maint: Fix VPATH build 2019-01-07 21:56:16 -06:00
include/libvirt snapshot: Define explicit flags for snapshot xml 2019-02-19 21:34:42 -06:00
m4 tools: Drop support for pre-2.4.0 wireshark 2019-02-12 09:22:59 +01:00
po po: refresh translations from zanata 2019-01-14 18:10:21 +00:00
src snapshot: Define explicit flags for snapshot xml 2019-02-19 21:34:42 -06:00
tests qemu_process: Enter QMP command mode when starting QEMU Process 2019-02-19 18:44:49 +01:00
tools virsh: fix return value in storage vol name completor 2019-02-19 16:06:46 +00:00
.color_coded.in Add color_coded support 2017-05-09 09:51:11 +02:00
.ctags ctags: Generate tags for headers, i.e. function prototypes 2018-09-18 14:21:33 +02:00
.dir-locals.el build: avoid tabs that failed syntax-check 2012-09-06 09:43:46 -06:00
.gitignore tools: Keep wireshark plugin registration code in git 2019-02-12 09:22:59 +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: Switch from Docker Hub to quay.io 2018-11-13 13:46:38 +01:00
.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 gnulib for syntax-check on BSD 2019-01-07 13:54:07 -06:00
bootstrap.conf bootstrap.conf: Fix LGPL information 2019-01-25 14:04:19 +01:00
cfg.mk tools: Cleanup packet-libvirt.h 2019-02-12 09:22:59 +01:00
ChangeLog-old Fix typos in src/* 2014-04-21 16:49:08 -06:00
config-post.h config-post: Remove duplicated 'undef WITH_CAPNG' 2019-01-21 14:44:47 +01:00
configure.ac configure: selectively install a firewalld 'libvirt' zone 2019-02-01 12:08:37 -05:00
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 tools: Drop support for pre-2.4.0 wireshark 2019-02-12 09:22:59 +01:00
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 rpm spec: remove %{extra_release} from spec 2019-01-22 11:16:08 +00:00
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

README.md

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