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Libvirt native C API and daemons
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Andrea Bolognani c2180c2fd6 qemu: Set limits only when explicitly asked to do so
The current code is written under the assumption that, for all
limits except the core size, asking for the limit to be set to
zero is a no-op, and so the operation is performed
unconditionally.

While this is the behavior we want for the QEMU driver, the
virCommand and virProcess facilities are generic, and should not
implement this kind of policy: asking for a limit to be set to
zero should result in that limit being set to zero every single
time.

Add some checks in the QEMU driver, effectively moving the
policy where it belongs.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-03-08 22:41:40 +01:00
.ctags.d maint: Add support for .ctags.d 2019-05-31 17:54:28 +02:00
.github github: skip lockdown of old issues/prs 2020-04-07 17:50:54 +01:00
.gitlab/issue_templates gitlab: Add issue template for a feature request 2020-12-02 09:11:27 +01:00
build-aux build-aux: require GNU grep on FreeBSD 2021-03-04 19:17:15 +04:00
ci ci: Makefile: Expose CI_IMAGE_PREFIX and CI_IMAGE_TAG in 'ci-help' 2021-02-17 11:05:42 +01:00
docs conf: add support for VNC power control setting 2021-03-08 21:04:06 +00:00
examples event-test: Properly terminate strings printed from callbacks 2021-02-19 15:10:48 +01:00
include src: define virDomainGetMessages API 2021-02-12 09:19:12 +00:00
po Translated using Weblate (Finnish) 2021-03-08 12:24:55 +01:00
scripts scripts/check-aclrules.py: check ACL for domain_driver.c ACL callers 2021-02-17 15:56:53 -03:00
src qemu: Set limits only when explicitly asked to do so 2021-03-08 22:41:40 +01:00
tests qemu: wire up support for VNC power control options 2021-03-08 21:04:06 +00:00
tools meson: tools: depend on keycode generated sources 2021-03-05 20:05:54 +04:00
.color_coded.in gnulib: delete all gnulib integration 2020-02-07 15:03:54 +00:00
.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
.editorconfig Add .editorconfig 2019-09-06 12:47:46 +02:00
.gitignore Ignore clangd-related files and folders 2020-08-03 10:57:47 +02:00
.gitlab-ci.yml ci: Build on macOS 11 instead of macOS 10.15 2021-02-16 11:35:44 +01:00
.gitmodules gnulib: delete all gnulib integration 2020-02-07 15:03:54 +00:00
.gitpublish gitpublish: add a subject prefix 2020-01-16 13:04:11 +00:00
.mailmap mailmap: consolidate my email addresses 2020-10-06 12:05:09 +02:00
.ycm_extra_conf.py.in gnulib: delete all gnulib integration 2020-02-07 15:03:54 +00:00
AUTHORS.rst.in AUTHORS: Remove Emacs file variables 2020-09-02 13:20:17 +02:00
config.h Fix capitalization "CLang" -> "Clang" 2020-11-12 15:01:42 +01:00
configmake.h.in meson: generate configmake.h 2020-08-03 09:26:48 +02:00
CONTRIBUTING.rst meson: adjust our documentation to mention meson instead of autoconf 2020-08-03 09:27:09 +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
gitdm.config gitdm: add 'ibm' file 2019-10-18 17:32:52 +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 build: Require glib >= 2.56 2021-03-04 10:32:45 -07:00
meson_options.txt meson: add tests build option to enable/disable unit tests 2020-10-09 13:44:54 +02:00
meson.build util: Move glib event loop workaround to glibcompat 2021-03-05 10:17:26 +01:00
mingw-libvirt.spec.in rpm: convert mingw spec to meson 2020-12-07 12:24:32 +00:00
NEWS.rst Post-release version bump to 7.2.0 2021-03-01 11:58:58 +01:00
README.rst README: drop Travis CI badge 2020-08-03 15:08:28 +02:00
run.in Prefer https: everywhere where possible 2020-09-01 21:58:46 +02:00

.. image:: https://gitlab.com/libvirt/libvirt/badges/master/pipeline.svg
     :target: https://gitlab.com/libvirt/libvirt/pipelines
     :alt: GitLab CI Build Status
.. image:: https://bestpractices.coreinfrastructure.org/projects/355/badge
     :target: https://bestpractices.coreinfrastructure.org/projects/355
     :alt: CII Best Practices
.. image:: https://translate.fedoraproject.org/widgets/libvirt/-/libvirt/svg-badge.svg
     :target: https://translate.fedoraproject.org/engage/libvirt/
     :alt: Translation status

==============================
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:

* 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:

https://libvirt.org/contact.html