diff --git a/docs/specs/nvme.txt b/docs/specs/nvme.txt
index 82def65d4c78..921dbce2dc01 100644
--- a/docs/specs/nvme.txt
+++ b/docs/specs/nvme.txt
@@ -30,6 +30,13 @@ nvme-ns Options
      zns.zcap; if the zone capacity is a power of two, the zone size will be
      set to that, otherwise it will default to the next power of two.
 
+  `zns.mar`; Specifies the number of active resources available. This is a 0s
+     based value.
+
+  `zns.mor`; Specifies the number of open resources available. This is a 0s
+     based value.
+
+
 Reference Specifications
 ------------------------
 
diff --git a/hw/block/nvme-ns.h b/hw/block/nvme-ns.h
index 5a695334a052..f520ffa89c98 100644
--- a/hw/block/nvme-ns.h
+++ b/hw/block/nvme-ns.h
@@ -28,6 +28,8 @@ typedef struct NvmeNamespaceParams {
         uint64_t zcap;
         uint64_t zsze;
         uint8_t  zdes;
+        uint32_t mar;
+        uint32_t mor;
     } zns;
 } NvmeNamespaceParams;
 
@@ -71,6 +73,11 @@ typedef struct NvmeNamespace {
         NvmeZone           *zones;
         NvmeZoneDescriptor *zd;
         uint8_t            *zde;
+
+        struct {
+            uint32_t open;
+            uint32_t active;
+        } resources;
     } zns;
 } NvmeNamespace;
 
diff --git a/include/block/nvme.h b/include/block/nvme.h
index 5f8914f594f4..d51f397e7ff1 100644
--- a/include/block/nvme.h
+++ b/include/block/nvme.h
@@ -776,6 +776,8 @@ enum NvmeStatusCodes {
     NVME_ZONE_IS_READ_ONLY      = 0x01ba,
     NVME_ZONE_IS_OFFLINE        = 0x01bb,
     NVME_ZONE_INVALID_WRITE     = 0x01bc,
+    NVME_TOO_MANY_ACTIVE_ZONES  = 0x01bd,
+    NVME_TOO_MANY_OPEN_ZONES    = 0x01be,
     NVME_INVALID_ZONE_STATE_TRANSITION = 0x01bf,
     NVME_WRITE_FAULT            = 0x0280,
     NVME_UNRECOVERED_READ       = 0x0281,
diff --git a/hw/block/nvme-ns.c b/hw/block/nvme-ns.c
index 0fb196c7103e..588fe7a1f018 100644
--- a/hw/block/nvme-ns.c
+++ b/hw/block/nvme-ns.c
@@ -119,8 +119,13 @@ static void nvme_ns_init_zoned(NvmeNamespace *ns)
 
     id_ns->ncap = ns->zns.num_zones * ns->params.zns.zcap;
 
-    id_ns_zns->mar = 0xffffffff;
-    id_ns_zns->mor = 0xffffffff;
+    id_ns_zns->mar = cpu_to_le32(ns->params.zns.mar);
+    id_ns_zns->mor = cpu_to_le32(ns->params.zns.mor);
+
+    ns->zns.resources.active = ns->params.zns.mar != 0xffffffff ?
+        ns->params.zns.mar + 1 : ns->zns.num_zones;
+    ns->zns.resources.open = ns->params.zns.mor != 0xffffffff ?
+        ns->params.zns.mor + 1 : ns->zns.num_zones;
 }
 
 static void nvme_ns_init(NvmeNamespace *ns)
@@ -249,9 +254,15 @@ static int nvme_ns_setup_blk_pstate(NvmeNamespace *ns, Error **errp)
                     if (nvme_wp(zone) == nvme_zslba(zone) &&
                         !(zone->zd->za & NVME_ZA_ZDEV)) {
                         nvme_zs_set(zone, NVME_ZS_ZSE);
+                        continue;
                     }
 
-                    continue;
+                    if (ns->zns.resources.active) {
+                        ns->zns.resources.active--;
+                        continue;
+                    }
+
+                    /* fallthrough */
 
                 case NVME_ZS_ZSIO:
                 case NVME_ZS_ZSEO:
@@ -333,6 +344,12 @@ static int nvme_ns_check_constraints(NvmeNamespace *ns, Error **errp)
             return -1;
         }
 
+        if (ns->params.zns.mor > ns->params.zns.mar) {
+            error_setg(errp, "maximum open resources (zns.mor) must be less "
+                       "than or equal to maximum active resources (zns.mar)");
+            return -1;
+        }
+
         break;
 
     default:
@@ -418,6 +435,8 @@ static Property nvme_ns_props[] = {
     DEFINE_PROP_UINT64("zns.zcap", NvmeNamespace, params.zns.zcap, 0),
     DEFINE_PROP_UINT64("zns.zsze", NvmeNamespace, params.zns.zsze, 0),
     DEFINE_PROP_UINT8("zns.zdes", NvmeNamespace, params.zns.zdes, 0),
+    DEFINE_PROP_UINT32("zns.mar", NvmeNamespace, params.zns.mar, 0xffffffff),
+    DEFINE_PROP_UINT32("zns.mor", NvmeNamespace, params.zns.mor, 0xffffffff),
     DEFINE_PROP_END_OF_LIST(),
 };
 
diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 294bc2fb719d..79732b8a8574 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -1204,6 +1204,40 @@ static uint16_t nvme_zrm_transition(NvmeNamespace *ns, NvmeZone *zone,
 
     switch (from) {
     case NVME_ZS_ZSE:
+        switch (to) {
+        case NVME_ZS_ZSF:
+        case NVME_ZS_ZSRO:
+        case NVME_ZS_ZSO:
+            break;
+
+        case NVME_ZS_ZSC:
+            if (!ns->zns.resources.active) {
+                return NVME_TOO_MANY_ACTIVE_ZONES;
+            }
+
+            ns->zns.resources.active--;
+
+            break;
+
+        case NVME_ZS_ZSIO:
+        case NVME_ZS_ZSEO:
+            if (!ns->zns.resources.active) {
+                return NVME_TOO_MANY_ACTIVE_ZONES;
+            }
+
+            if (!ns->zns.resources.open) {
+                return NVME_TOO_MANY_OPEN_ZONES;
+            }
+
+            ns->zns.resources.active--;
+            ns->zns.resources.open--;
+
+            break;
+
+        default:
+            return NVME_INVALID_ZONE_STATE_TRANSITION | NVME_DNR;
+        }
+
         break;
 
     case NVME_ZS_ZSIO:
@@ -1224,7 +1258,13 @@ static uint16_t nvme_zrm_transition(NvmeNamespace *ns, NvmeZone *zone,
 
         case NVME_ZS_ZSF:
         case NVME_ZS_ZSRO:
+            ns->zns.resources.active++;
+
+            /* fallthrough */
+
         case NVME_ZS_ZSC:
+            ns->zns.resources.open++;
+
             break;
 
         default:
@@ -1247,8 +1287,18 @@ static uint16_t nvme_zrm_transition(NvmeNamespace *ns, NvmeZone *zone,
 
         case NVME_ZS_ZSF:
         case NVME_ZS_ZSRO:
+            ns->zns.resources.active++;
+
+            break;
+
         case NVME_ZS_ZSIO:
         case NVME_ZS_ZSEO:
+            if (!ns->zns.resources.open) {
+                return NVME_TOO_MANY_OPEN_ZONES;
+            }
+
+            ns->zns.resources.open--;
+
             break;
 
         default:
@@ -1652,6 +1702,7 @@ static uint16_t nvme_zone_mgmt_send_all(NvmeCtrl *n, NvmeRequest *req)
     NvmeZoneManagementSendCmd *send = (NvmeZoneManagementSendCmd *) &req->cmd;
     NvmeNamespace *ns = req->ns;
     NvmeZone *zone;
+    int count;
 
     uint16_t status = NVME_SUCCESS;
 
@@ -1701,6 +1752,20 @@ static uint16_t nvme_zone_mgmt_send_all(NvmeCtrl *n, NvmeRequest *req)
         break;
 
     case NVME_CMD_ZONE_MGMT_SEND_OPEN:
+        count = 0;
+
+        for (int i = 0; i < ns->zns.num_zones; i++) {
+            zone = &ns->zns.zones[i];
+
+            if (nvme_zs(zone) == NVME_ZS_ZSC) {
+                count++;
+            }
+        }
+
+        if (count > ns->zns.resources.open) {
+            return NVME_TOO_MANY_OPEN_ZONES;
+        }
+
         for (int i = 0; i < ns->zns.num_zones; i++) {
             zone = &ns->zns.zones[i];
 
