mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2025-03-27 06:50:23 +03:00
d94b781771
When starting a VM the qemu process may filter out some requested features of a domain as it's not supported either by the host or by qemu. Libvirt didn't check if this happened which might end up in changing of the guest ABI when migrating. The proof of concept implementation adds the check for the recently introduced kvm_pv_unhalt cpuid feature bit. This feature depends on both qemu and host kernel support and thus increase the possibility of guest ABI breakage.
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>