diff --git a/manifests/compute/libvirt.pp b/manifests/compute/libvirt.pp
index cadeac218..ec33eb15d 100644
--- a/manifests/compute/libvirt.pp
+++ b/manifests/compute/libvirt.pp
@@ -187,6 +187,15 @@
 #   the global default settings.
 #   Defaults to undef
 #
+# [*pmem_namespaces*]
+#   (optional) Configure persistent memory(pmem) namespaces. These namespaces
+#   must have been already created on the host. This config option is in the
+#   following format: "$LABEL:$NSNAME[|$NSNAME][,$LABEL:$NSNAME[|$NSNAME]]"
+#   $NSNAME is the name of the pmem namespace. $LABEL represents one resource
+#   class, this is used to generate the resource class name as
+#   CUSTOM_PMEM_NAMESPACE_$LABEL.
+#   Defaults to $::os_service_default
+
 class nova::compute::libvirt (
   $ensure_package                             = 'present',
   $libvirt_virt_type                          = 'kvm',
@@ -222,6 +231,7 @@ class nova::compute::libvirt (
   $mem_stats_period_seconds                   = $::os_service_default,
   $log_filters                                = undef,
   $tls_priority                               = undef,
+  $pmem_namespaces                            = $::os_service_default,
 ) inherits nova::params {
 
   include ::nova::deps
@@ -320,6 +330,7 @@ class nova::compute::libvirt (
     'libvirt/nfs_mount_options':        value => $nfs_mount_options;
     'libvirt/num_pcie_ports':           value => $num_pcie_ports;
     'libvirt/mem_stats_period_seconds': value => $mem_stats_period_seconds;
+    'libvirt/pmem_namespaces':          value => $pmem_namespaces;
   }
 
   # cpu_model param is only valid if cpu_mode=custom
diff --git a/releasenotes/notes/add_pmem_namespaces-7c425a8c65ecd119.yaml b/releasenotes/notes/add_pmem_namespaces-7c425a8c65ecd119.yaml
new file mode 100644
index 000000000..54c9621c0
--- /dev/null
+++ b/releasenotes/notes/add_pmem_namespaces-7c425a8c65ecd119.yaml
@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Add support for managing configuration for persistent memory(pmem)
+    namespaces.
\ No newline at end of file
diff --git a/spec/classes/nova_compute_libvirt_spec.rb b/spec/classes/nova_compute_libvirt_spec.rb
index 60f644fd6..dd1ce4c2e 100644
--- a/spec/classes/nova_compute_libvirt_spec.rb
+++ b/spec/classes/nova_compute_libvirt_spec.rb
@@ -66,6 +66,7 @@ describe 'nova::compute::libvirt' do
       it { is_expected.to contain_nova_config('libvirt/nfs_mount_options').with_value('<SERVICE DEFAULT>')}
       it { is_expected.to contain_nova_config('libvirt/num_pcie_ports').with_value('<SERVICE DEFAULT>')}
       it { is_expected.to contain_nova_config('libvirt/mem_stats_period_seconds').with_value('<SERVICE DEFAULT>')}
+      it { is_expected.to contain_nova_config('libvirt/pmem_namespaces').with_value('<SERVICE DEFAULT>')}
       it { is_expected.to_not contain_libvirtd_config('log_outputs')}
       it { is_expected.to_not contain_libvirtd_config('log_filters')}
       it { is_expected.to_not contain_libvirtd_config('tls_priority')}
@@ -101,6 +102,7 @@ describe 'nova::compute::libvirt' do
           :mem_stats_period_seconds                   => 20,
           :log_filters                                => '1:qemu',
           :tls_priority                               => 'NORMAL:-VERS-SSL3.0',
+          :pmem_namespaces                            => '128G:ns0|ns1|ns2|ns3'
         }
       end
 
@@ -130,6 +132,7 @@ describe 'nova::compute::libvirt' do
       it { is_expected.to contain_nova_config('libvirt/nfs_mount_options').with_value('rw,intr,nolock')}
       it { is_expected.to contain_nova_config('libvirt/num_pcie_ports').with_value(16)}
       it { is_expected.to contain_nova_config('libvirt/mem_stats_period_seconds').with_value(20)}
+      it { is_expected.to contain_nova_config('libvirt/pmem_namespaces').with_value("128G:ns0|ns1|ns2|ns3")}
       it { is_expected.to contain_libvirtd_config('log_filters').with_value("\"#{params[:log_filters]}\"")}
       it { is_expected.to contain_libvirtd_config('tls_priority').with_value("\"#{params[:tls_priority]}\"")}
       it {