50ce3463d5
Commit b7798a07f93 (in fall of 2016) changed the way we generate aliases for 'dimm' memory devices as the alias itself is part of the migration stream section naming and thus must be treated as ABI. The code added compatibility layer for VMs with memory hotplug started with the old scheme to prevent from generating wrong aliases. The compatibility layer broke though later when 'nvdimm' and 'pmem' devices were introduced as it wrongly detected them as old configuration. Now rather than attempting to fix the legacy compat layer to treat other devices properly we'll be better off simply removing it as it's extremely unlikely that somebody has a VM started in 2016 running with today's libvirt and attempts to hotplug more memory. This fixes a corner case when a user hot-adds a 'dimm' into a VM with a 'dimm' and a 'nvdimm' after restart of libvirtd and then attempts to migrate the VM. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2158701 Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Martin Kletzander <mkletzan@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: