baeefe0327
When automatically adding a NUMA node (qemuDomainDefNumaAutoAdd()) the memory size of the node is computed as: total_memory - sum(memory devices) And we have a nice helper for that: virDomainDefGetMemoryInitial() so it looks logical to just call it. Except, this code runs in post parse callback, i.e. memory sizes were not validated and it may happen that the sum is greater than the total memory. This would be caught by virDomainDefPostParseMemory() but that runs only after driver specific callbacks (i.e. after qemuDomainDefNumaAutoAdd()) and because the domain config was changed and memory was increased to this huge number no error is caught. So let's do what virDomainDefGetMemoryInitial() would do, but with error checking. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2216236 Fixes: f5d4f5c8ee44e9f1939070afcc5381bdd5545e50 Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Kristina Hanicova <khanicov@redhat.com>
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:
- 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: