diff --git a/manifests/compute/libvirt.pp b/manifests/compute/libvirt.pp
index 98de10c0e..2c71213ce 100644
--- a/manifests/compute/libvirt.pp
+++ b/manifests/compute/libvirt.pp
@@ -65,6 +65,10 @@
 #   (optional) Option to specify a default machine type per host architecture.
 #   Defaults to $::os_service_default
 #
+# [*sysinfo_serial*]
+#   (optional) Option to specify a serial number entry generation method.
+#   Defaults to $::os_service_default
+#
 # [*inject_password*]
 #   (optional) Inject the admin password at boot time, without an agent.
 #   Defaults to false
@@ -323,6 +327,7 @@ class nova::compute::libvirt (
   $disk_cachemodes                            = [],
   $hw_disk_discard                            = $::os_service_default,
   $hw_machine_type                            = $::os_service_default,
+  $sysinfo_serial                             = $::os_service_default,
   $inject_password                            = false,
   $inject_key                                 = false,
   $inject_partition                           = -2,
@@ -601,6 +606,7 @@ in a future release. Use the enabled_perf_events parameter instead')
     'libvirt/inject_partition':            value => $inject_partition_real;
     'libvirt/hw_disk_discard':             value => $hw_disk_discard_real;
     'libvirt/hw_machine_type':             value => $hw_machine_type_real;
+    'libvirt/sysinfo_serial':              value => $sysinfo_serial;
     'libvirt/enabled_perf_events':         value => join(any2array($enabled_perf_events_real), ',');
     'libvirt/rx_queue_size':               value => $rx_queue_size;
     'libvirt/tx_queue_size':               value => $tx_queue_size;
diff --git a/releasenotes/notes/libvirt_sysinfo_serial-e1603d45446726c3.yaml b/releasenotes/notes/libvirt_sysinfo_serial-e1603d45446726c3.yaml
new file mode 100644
index 000000000..c6660a8df
--- /dev/null
+++ b/releasenotes/notes/libvirt_sysinfo_serial-e1603d45446726c3.yaml
@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Add ``sysinfo_serial`` parameter to control a Serial number entry generation
+    method. Defaults to ``$::os_service_default``.
diff --git a/spec/classes/nova_compute_libvirt_spec.rb b/spec/classes/nova_compute_libvirt_spec.rb
index 7bfa27be2..6b2168242 100644
--- a/spec/classes/nova_compute_libvirt_spec.rb
+++ b/spec/classes/nova_compute_libvirt_spec.rb
@@ -58,6 +58,7 @@ describe 'nova::compute::libvirt' do
       it { is_expected.to contain_nova_config('libvirt/inject_password').with_value(false)}
       it { is_expected.to contain_nova_config('libvirt/inject_key').with_value(false)}
       it { is_expected.to contain_nova_config('libvirt/inject_partition').with_value(-2)}
+      it { is_expected.to contain_nova_config('libvirt/sysinfo_serial').with_value('<SERVICE DEFAULT>')}
       it { is_expected.to contain_nova_config('vnc/server_listen').with_value('127.0.0.1')}
       it { is_expected.to contain_nova_config('libvirt/rx_queue_size').with_value('<SERVICE DEFAULT>')}
       it { is_expected.to contain_nova_config('libvirt/tx_queue_size').with_value('<SERVICE DEFAULT>')}
@@ -90,6 +91,7 @@ describe 'nova::compute::libvirt' do
           :disk_cachemodes                            => ['file=directsync','block=none'],
           :hw_disk_discard                            => 'unmap',
           :hw_machine_type                            => 'x86_64=machinetype1,armv7l=machinetype2',
+          :sysinfo_serial                             => 'auto',
           :enabled_perf_events                        => ['cmt', 'mbml', 'mbmt'],
           :libvirt_service_name                       => 'custom_service',
           :virtlock_service_name                      => 'virtlock',
@@ -133,6 +135,7 @@ describe 'nova::compute::libvirt' do
       it { is_expected.to contain_nova_config('libvirt/disk_cachemodes').with_value('file=directsync,block=none')}
       it { is_expected.to contain_nova_config('libvirt/hw_disk_discard').with_value('unmap')}
       it { is_expected.to contain_nova_config('libvirt/hw_machine_type').with_value('x86_64=machinetype1,armv7l=machinetype2')}
+      it { is_expected.to contain_nova_config('libvirt/sysinfo_serial').with_value('auto')}
       it { is_expected.to contain_nova_config('libvirt/enabled_perf_events').with_value('cmt,mbml,mbmt')}
       it { is_expected.to contain_nova_config('vnc/server_listen').with_value('0.0.0.0')}
       it { is_expected.to contain_nova_config('libvirt/rx_queue_size').with_value(512)}