diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 94db06cf72..c1323ca869 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -2751,6 +2751,7 @@ static void nvme_init_ctrl(NvmeCtrl *n, PCIDevice *pci_dev)
     NVME_CAP_SET_CQR(n->bar.cap, 1);
     NVME_CAP_SET_TO(n->bar.cap, 0xf);
     NVME_CAP_SET_CSS(n->bar.cap, NVME_CAP_CSS_NVM);
+    NVME_CAP_SET_CSS(n->bar.cap, NVME_CAP_CSS_ADMIN_ONLY);
     NVME_CAP_SET_MPSMAX(n->bar.cap, 4);
 
     n->bar.vs = NVME_SPEC_VER;
diff --git a/include/block/nvme.h b/include/block/nvme.h
index bc20a2ba5e..521533fd2a 100644
--- a/include/block/nvme.h
+++ b/include/block/nvme.h
@@ -83,7 +83,8 @@ enum NvmeCapMask {
                                                             << CAP_PMR_SHIFT)
 
 enum NvmeCapCss {
-    NVME_CAP_CSS_NVM = 1 << 0,
+    NVME_CAP_CSS_NVM        = 1 << 0,
+    NVME_CAP_CSS_ADMIN_ONLY = 1 << 7,
 };
 
 enum NvmeCcShift {