diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index dbfc7d973c26c6e09ad99a6dae30e3c431577df6..287ad8d4dc103e63b562c79ac1c658ed75359cc3 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -4084,7 +4084,7 @@ qemuBuildCommandLine(virConnectPtr conn,
         switch(console->targetType) {
         case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_VIRTIO:
             if (!qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) {
-                qemuReportError(VIR_ERR_NO_SUPPORT, "%s",
+                qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
                     _("virtio channel requires QEMU to support -device"));
                 goto error;
             }
@@ -4109,7 +4109,7 @@ qemuBuildCommandLine(virConnectPtr conn,
             break;
 
         default:
-            qemuReportError(VIR_ERR_NO_SUPPORT,
+            qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                             _("unsupported console target type %s"),
                             NULLSTR(virDomainChrConsoleTargetTypeToString(console->targetType)));
             goto error;
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index c8dda73328b80f5807feefc09a80aab25260a276..fc2538ae12cb21460a772130ea59978c767daf62 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -1552,7 +1552,7 @@ static int qemuDomainReboot(virDomainPtr dom, unsigned int flags) {
             vm = NULL;
     } else {
 #endif
-        qemuReportError(VIR_ERR_NO_SUPPORT, "%s",
+        qemuReportError(VIR_ERR_OPERATION_INVALID, "%s",
                         _("Reboot is not supported without the JSON monitor"));
 #if HAVE_YAJL
     }
@@ -3309,7 +3309,7 @@ qemudDomainPinVcpuFlags(virDomainPtr dom,
                                           cpumap, maplen, maxcpu) < 0)
                 goto cleanup;
         } else {
-            qemuReportError(VIR_ERR_NO_SUPPORT,
+            qemuReportError(VIR_ERR_OPERATION_INVALID,
                             "%s", _("cpu affinity is not supported"));
             goto cleanup;
         }
@@ -3563,7 +3563,7 @@ qemudDomainGetVcpus(virDomainPtr dom,
                         goto cleanup;
                 }
             } else {
-                qemuReportError(VIR_ERR_NO_SUPPORT,
+                qemuReportError(VIR_ERR_OPERATION_INVALID,
                                 "%s", _("cpu affinity is not available"));
                 goto cleanup;
             }
@@ -5637,7 +5637,7 @@ static int qemuDomainSetBlkioParameters(virDomainPtr dom,
         }
 
         if (!qemuCgroupControllerActive(driver, VIR_CGROUP_CONTROLLER_BLKIO)) {
-            qemuReportError(VIR_ERR_NO_SUPPORT, _("blkio cgroup isn't mounted"));
+            qemuReportError(VIR_ERR_OPERATION_INVALID, _("blkio cgroup isn't mounted"));
             goto cleanup;
         }
 
@@ -5790,7 +5790,7 @@ static int qemuDomainGetBlkioParameters(virDomainPtr dom,
         }
 
         if (!qemuCgroupControllerActive(driver, VIR_CGROUP_CONTROLLER_BLKIO)) {
-            qemuReportError(VIR_ERR_NO_SUPPORT, _("blkio cgroup isn't mounted"));
+            qemuReportError(VIR_ERR_OPERATION_INVALID, _("blkio cgroup isn't mounted"));
             goto cleanup;
         }
 
@@ -6887,8 +6887,8 @@ qemudDomainInterfaceStats (virDomainPtr dom,
                            const char *path ATTRIBUTE_UNUSED,
                            struct _virDomainInterfaceStats *stats ATTRIBUTE_UNUSED)
 {
-    qemuReportError(VIR_ERR_NO_SUPPORT,
-                    "%s", __FUNCTION__);
+    qemuReportError(VIR_ERR_OPERATION_INVALID, "%s",
+                    _("interface stats not implemented on this platform"));
     return -1;
 }
 #endif
@@ -8004,7 +8004,7 @@ qemuCPUCompare(virConnectPtr conn,
     qemuDriverLock(driver);
 
     if (!driver->caps || !driver->caps->host.cpu) {
-        qemuReportError(VIR_ERR_NO_SUPPORT,
+        qemuReportError(VIR_ERR_OPERATION_INVALID,
                         "%s", _("cannot get host CPU capabilities"));
     } else {
         ret = cpuCompareXML(driver->caps->host.cpu, xmlDesc);
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 6f54b3073e62977739cc3878d5e168171d530321..616c8e210143db4f9556bf75bb06e969c9374a4c 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -261,7 +261,7 @@ qemuProcessGetVolumeQcowPassphrase(virConnectPtr conn,
     if (conn->secretDriver == NULL ||
         conn->secretDriver->lookupByUUID == NULL ||
         conn->secretDriver->getValue == NULL) {
-        qemuReportError(VIR_ERR_NO_SUPPORT, "%s",
+        qemuReportError(VIR_ERR_OPERATION_INVALID, "%s",
                         _("secret storage not supported"));
         goto cleanup;
     }
@@ -1464,7 +1464,7 @@ qemuProcessSetVcpuAffinites(virConnectPtr conn,
         return 0;
 
     if (priv->vcpupids == NULL) {
-        qemuReportError(VIR_ERR_NO_SUPPORT,
+        qemuReportError(VIR_ERR_OPERATION_INVALID,
                         "%s", _("cpu affinity is not supported"));
         return -1;
     }