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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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Andrea Bolognani ef48295105 apparmor: Allow umount(/dev) 
Commit 379c0ce4bf introduced a call to umount(/dev) performed
inside the namespace that we run QEMU in.

As a result of this, on machines using AppArmor, VM startup now
fails with

  internal error: Process exited prior to exec: libvirt:
  QEMU Driver error: failed to umount devfs on /dev: Permission denied

The corresponding denial is

  AVC apparmor="DENIED" operation="umount" profile="libvirtd"
      name="/dev/" pid=70036 comm="rpc-libvirtd"

Extend the AppArmor configuration for virtqemud and libvirtd so
that this operation is allowed.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jim Fehlig <jfehlig@suse.com>
2023-01-18 18:02:03 +01:00
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include lib: Introduce virDomainFDAssociate API 2023-01-09 14:59:42 +01:00
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scripts apibuild: Don't include the Copyright in the <description> of a module 2022-11-03 14:11:22 +01:00
src apparmor: Allow umount(/dev) 2023-01-18 18:02:03 +01:00
tests tests: remove unused qemu .args file 2023-01-13 10:02:05 +01:00
tools virsh: Introduce 'dom-fd-associate' for invoking virDomainFDAssociate() 2023-01-09 14:59:42 +01:00
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libvirt-lxc.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
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README.rst

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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:

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

https://libvirt.org/contact.html