diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c
index 8fd9b00191..908973dead 100644
--- a/src/lxc/lxc_driver.c
+++ b/src/lxc/lxc_driver.c
@@ -795,22 +795,36 @@ lxcDomainGetMemoryParameters(virDomainPtr dom,
                              int *nparams,
                              unsigned int flags)
 {
-    size_t i;
+    virCapsPtr caps = NULL;
+    virDomainDefPtr vmdef = NULL;
     virDomainObjPtr vm = NULL;
+    virLXCDomainObjPrivatePtr priv = NULL;
+    virLXCDriverPtr driver = dom->conn->privateData;
     unsigned long long val;
     int ret = -1;
-    virLXCDomainObjPrivatePtr priv;
+    size_t i;
 
-    virCheckFlags(0, -1);
+    virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
+                  VIR_DOMAIN_AFFECT_CONFIG, -1);
 
     if (!(vm = lxcDomObjFromDomain(dom)))
         goto cleanup;
 
     priv = vm->privateData;
 
-    if (virDomainGetMemoryParametersEnsureACL(dom->conn, vm->def) < 0)
+    if (virDomainGetMemoryParametersEnsureACL(dom->conn, vm->def) < 0 ||
+        !(caps = virLXCDriverGetCapabilities(driver, false)) ||
+        virDomainLiveConfigHelperMethod(caps, driver->xmlopt,
+                                        vm, &flags, &vmdef) < 0)
         goto cleanup;
 
+    if (flags & VIR_DOMAIN_AFFECT_LIVE &&
+        !virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_MEMORY)) {
+        virReportError(VIR_ERR_OPERATION_INVALID,
+                       "%s", _("cgroup memory controller is not mounted"));
+        goto cleanup;
+    }
+
     if ((*nparams) == 0) {
         /* Current number of memory parameters supported by cgroups */
         *nparams = LXC_NB_MEM_PARAM;
@@ -824,22 +838,34 @@ lxcDomainGetMemoryParameters(virDomainPtr dom,
 
         switch (i) {
         case 0: /* fill memory hard limit here */
-            if (virCgroupGetMemoryHardLimit(priv->cgroup, &val) < 0)
+            if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
+                val = vmdef->mem.hard_limit;
+                val = val ? val : VIR_DOMAIN_MEMORY_PARAM_UNLIMITED;
+            } else if (virCgroupGetMemoryHardLimit(priv->cgroup, &val) < 0) {
                 goto cleanup;
+            }
             if (virTypedParameterAssign(param, VIR_DOMAIN_MEMORY_HARD_LIMIT,
                                         VIR_TYPED_PARAM_ULLONG, val) < 0)
                 goto cleanup;
             break;
         case 1: /* fill memory soft limit here */
-            if (virCgroupGetMemorySoftLimit(priv->cgroup, &val) < 0)
+            if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
+                val = vmdef->mem.soft_limit;
+                val = val ? val : VIR_DOMAIN_MEMORY_PARAM_UNLIMITED;
+            } else if (virCgroupGetMemorySoftLimit(priv->cgroup, &val) < 0) {
                 goto cleanup;
+            }
             if (virTypedParameterAssign(param, VIR_DOMAIN_MEMORY_SOFT_LIMIT,
                                         VIR_TYPED_PARAM_ULLONG, val) < 0)
                 goto cleanup;
             break;
         case 2: /* fill swap hard limit here */
-            if (virCgroupGetMemSwapHardLimit(priv->cgroup, &val) < 0)
+            if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
+                val = vmdef->mem.swap_hard_limit;
+                val = val ? val : VIR_DOMAIN_MEMORY_PARAM_UNLIMITED;
+            } else if (virCgroupGetMemSwapHardLimit(priv->cgroup, &val) < 0) {
                 goto cleanup;
+            }
             if (virTypedParameterAssign(param,
                                         VIR_DOMAIN_MEMORY_SWAP_HARD_LIMIT,
                                         VIR_TYPED_PARAM_ULLONG, val) < 0)
@@ -860,6 +886,7 @@ lxcDomainGetMemoryParameters(virDomainPtr dom,
 cleanup:
     if (vm)
         virObjectUnlock(vm);
+    virObjectUnref(caps);
     return ret;
 }