diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 9289c147fe..ea6a097161 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -16866,6 +16866,42 @@ virDomainSEVDefParseXML(xmlNodePtr sevNode,
     return NULL;
 }
 
+int
+virDomainNVDimmAlignSizePseries(virDomainMemoryDefPtr mem)
+{
+    /* For NVDIMMs in ppc64 in we want to align down the guest
+     * visible space, instead of align up, to avoid writing
+     * beyond the end of file by adding a potential 256MiB
+     * to the user specified size.
+     *
+     * The label-size is mandatory for ppc64 as well, meaning that
+     * the guest visible space will be target_size-label_size.
+     *
+     * Finally, target_size must include label_size.
+     *
+     * The above can be summed up as follows:
+     *
+     * target_size = AlignDown(target_size - label_size) + label_size
+     */
+    unsigned long long ppc64AlignSize =  256 * 1024;
+    unsigned long long guestArea = mem->size - mem->labelsize;
+
+    /* Align down guest_area. 256MiB is the minimum size. Error
+     * out if target_size is smaller than 256MiB + label_size,
+     * since aligning it up will cause QEMU errors. */
+    if (mem->size < (ppc64AlignSize + mem->labelsize)) {
+        virReportError(VIR_ERR_XML_ERROR, "%s",
+                       _("minimum target size for the NVDIMM "
+                         "must be 256MB plus the label size"));
+        return -1;
+    }
+
+    guestArea = (guestArea/ppc64AlignSize) * ppc64AlignSize;
+    mem->size = guestArea + mem->labelsize;
+
+    return 0;
+}
+
 static virDomainMemoryDefPtr
 virDomainMemoryDefParseXML(virDomainXMLOptionPtr xmlopt,
                            xmlNodePtr memdevNode,
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 4724206828..8f1662aae0 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -3904,6 +3904,9 @@ bool
 virDomainBlockIoTuneInfoEqual(const virDomainBlockIoTuneInfo *a,
                               const virDomainBlockIoTuneInfo *b);
 
+int
+virDomainNVDimmAlignSizePseries(virDomainMemoryDefPtr mem);
+
 bool
 virHostdevIsSCSIDevice(const virDomainHostdevDef *hostdev)
     ATTRIBUTE_NONNULL(1);
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 96bc7cccb7..1db9970cca 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -544,6 +544,7 @@ virDomainNetTypeToString;
 virDomainNetUpdate;
 virDomainNostateReasonTypeFromString;
 virDomainNostateReasonTypeToString;
+virDomainNVDimmAlignSizePseries;
 virDomainObjAssignDef;
 virDomainObjBroadcast;
 virDomainObjCheckActive;
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 9e0d3a15b2..9fa6fac99a 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -8067,44 +8067,6 @@ qemuDomainGetMemoryModuleSizeAlignment(const virDomainDef *def,
 }
 
 
-static int
-qemuDomainNVDimmAlignSizePseries(virDomainDefPtr def,
-                                 virDomainMemoryDefPtr mem)
-{
-    /* For NVDIMMs in ppc64 in we want to align down the guest
-     * visible space, instead of align up, to avoid writing
-     * beyond the end of file by adding a potential 256MiB
-     * to the user specified size.
-     *
-     * The label-size is mandatory for ppc64 as well, meaning that
-     * the guest visible space will be target_size-label_size.
-     *
-     * Finally, target_size must include label_size.
-     *
-     * The above can be summed up as follows:
-     *
-     * target_size = AlignDown(target_size - label_size) + label_size
-     */
-    unsigned long long ppc64AlignSize = qemuDomainGetMemorySizeAlignment(def);
-    unsigned long long guestArea = mem->size - mem->labelsize;
-
-    /* Align down guest_area. 256MiB is the minimum size. Error
-     * out if target_size is smaller than 256MiB + label_size,
-     * since aligning it up will cause QEMU errors. */
-    if (mem->size < (ppc64AlignSize + mem->labelsize)) {
-        virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                       _("minimum target size for the NVDIMM "
-                         "must be 256MB plus the label size"));
-        return -1;
-    }
-
-    guestArea = (guestArea/ppc64AlignSize) * ppc64AlignSize;
-    mem->size = guestArea + mem->labelsize;
-
-    return 0;
-}
-
-
 int
 qemuDomainAlignMemorySizes(virDomainDefPtr def)
 {
@@ -8153,7 +8115,7 @@ qemuDomainAlignMemorySizes(virDomainDefPtr def)
     for (i = 0; i < def->nmems; i++) {
         if (def->mems[i]->model == VIR_DOMAIN_MEMORY_MODEL_NVDIMM &&
             ARCH_IS_PPC64(def->os.arch)) {
-            if (qemuDomainNVDimmAlignSizePseries(def, def->mems[i]) < 0)
+            if (virDomainNVDimmAlignSizePseries(def->mems[i]) < 0)
                 return -1;
         } else {
             align = qemuDomainGetMemoryModuleSizeAlignment(def, def->mems[i]);
@@ -8190,7 +8152,7 @@ qemuDomainMemoryDeviceAlignSize(virDomainDefPtr def,
 {
     if (mem->model == VIR_DOMAIN_MEMORY_MODEL_NVDIMM &&
         ARCH_IS_PPC64(def->os.arch)) {
-        return qemuDomainNVDimmAlignSizePseries(def, mem);
+        return virDomainNVDimmAlignSizePseries(mem);
     } else {
         mem->size = VIR_ROUND_UP(mem->size,
                                  qemuDomainGetMemorySizeAlignment(def));