• Andrea Spadaccini's avatar
    Fix interaction between CPU pinning and KVM migration · 1d8a7812
    Andrea Spadaccini authored
    CPU pinning requires the KVM hypervisor to start in the paused state, in
    order to retrieve information, and immediately unpauses it.
    This does not play well with live migration, as the unpausing was done
    before the migration started and so the receiving kvm process left the
    migrated instance in the stopped status.
    This patch fixes this behavior, by not launching the KVM process in
    stopped state while on the receiving side of a migration.
    Also, the stopping is now done outside _ExecuteCpuAffinity.
    Signed-off-by: default avatarAndrea Spadaccini <spadaccio@google.com>
    Reviewed-by: default avatarTsachy Shacham <tsachy@google.com>
hv_kvm.py 67.2 KB