57835f432f
The Linux MADV_DONTDUMP flag was added to Linux kernels > 3.3, back in 2012, and the dump-guest-core flag was added to QEMU > 1.0 at the same time. IOW, on Linux we have long been able to assume that QEMU core dumps will exclude guest memory, unless the user has overridden the host level defaults in the domain XML. It is desirable to permit QEMU core dumps out of the box to make it easier for users to report crashes to their OS vendor without having to reconfigure and restart libvirt daemons and their running guests. While there is a risk that an admin may have set 'dump_guest_core' to true, while leaving 'max_core' to 0, on balance the benefits of easier troubleshooting outweigh the risk of changing the defaults to permit core dumps. Reviewed-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-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:
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: