vhost: send userfault range addresses back to Qemu
vhost: send userfault range addresses back to Qemu

Signed-off-by: Dr. David Alan Gilbert <54dff2264884c355ed5584a3b7f1530b4b26921e@redhat.com>
Signed-off-by: Maxime Coquelin <9a2667dee3b90866bbc9c2696cff2b7d5616c95a@redhat.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk