diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index b954e7b7b2..02a6a97df9 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -1525,6 +1525,12 @@ static void nvme_init_pci(NvmeCtrl *n, PCIDevice *pci_dev)
     pci_register_bar(pci_dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY |
                      PCI_BASE_ADDRESS_MEM_TYPE_64, &n->iomem);
     msix_init_exclusive_bar(pci_dev, n->params.max_ioqpairs + 1, 4, NULL);
+
+    if (n->params.cmb_size_mb) {
+        nvme_init_cmb(n, pci_dev);
+    } else if (n->pmrdev) {
+        nvme_init_pmr(n, pci_dev);
+    }
 }
 
 static void nvme_realize(PCIDevice *pci_dev, Error **errp)
@@ -1586,12 +1592,6 @@ static void nvme_realize(PCIDevice *pci_dev, Error **errp)
     n->bar.vs = 0x00010200;
     n->bar.intmc = n->bar.intms = 0;
 
-    if (n->params.cmb_size_mb) {
-        nvme_init_cmb(n, pci_dev);
-    } else if (n->pmrdev) {
-        nvme_init_pmr(n, pci_dev);
-    }
-
     for (i = 0; i < n->num_namespaces; i++) {
         nvme_init_namespace(n, &n->namespaces[i], &local_err);
         if (local_err) {