qemu: handle missing switch enum cases

Ensure all enum cases are listed in switch statements, or cast away
enum type in places where we don't wish to cover all cases.

Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

src/qemu/qemu_command.c

@@ -2632,7 +2632,7 @@ qemuBuildControllerDevStr(const virDomainDef *domainDef,
     case VIR_DOMAIN_CONTROLLER_TYPE_SCSI:
         switch ((virDomainControllerModelSCSI) def->model) {
         case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI:
-            switch ((virDomainDeviceAddressType) address_type) {
+            switch (address_type) {
             case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW:
                 virBufferAddLit(&buf, "virtio-scsi-ccw");
                 break;
@@ -2684,7 +2684,7 @@ qemuBuildControllerDevStr(const virDomainDef *domainDef,
         break;
 
     case VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL:
-        switch ((virDomainDeviceAddressType) address_type) {
+        switch (address_type) {
         case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI:
             virBufferAddLit(&buf, "virtio-serial-pci");
             break;
@@ -3407,12 +3407,17 @@ qemuBuildNicDevStr(virDomainDefPtr def,
                 case VIR_DOMAIN_NET_VIRTIO_TX_MODE_TIMER:
                     virBufferAddLit(&buf, "timer");
                     break;
+
+                case VIR_DOMAIN_NET_VIRTIO_TX_MODE_DEFAULT:
+                    break;
+
+                case VIR_DOMAIN_NET_VIRTIO_TX_MODE_LAST:
                 default:
                     /* this should never happen, if it does, we need
                      * to add another case to this switch.
                      */
-                    virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+                    virReportEnumRangeError(virDomainNetVirtioTxModeType,
-                                   _("unrecognized virtio-net-pci 'tx' option"));
+                                            net->driver.virtio.txmode);
                     goto error;
             }
         } else {
@@ -6598,7 +6603,7 @@ qemuBuildGlobalControllerCommandLine(virCommandPtr cmd,
             bool cap = false;
             bool machine = false;
 
-            switch ((virDomainControllerModelPCI) cont->model) {
+            switch (cont->model) {
             case VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT:
                 hoststr = "i440FX-pcihost";
                 cap = virQEMUCapsGet(qemuCaps, QEMU_CAPS_I440FX_PCI_HOLE64_SIZE);
@@ -6941,7 +6946,7 @@ qemuBuildCpuCommandLine(virCommandPtr cmd,
     if (cpu_flags && !cpu) {
         const char *default_model;
 
-        switch (def->os.arch) {
+        switch ((int)def->os.arch) {
         case VIR_ARCH_I686:
             default_model = "qemu32";
             break;
@@ -6987,7 +6992,7 @@ qemuBuildObsoleteAccelArg(virCommandPtr cmd,
     bool disableKVM = false;
     bool enableKVM = false;
 
-    switch (def->virtType) {
+    switch ((int)def->virtType) {
     case VIR_DOMAIN_VIRT_QEMU:
         if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM))
             disableKVM = true;
@@ -7955,8 +7960,13 @@ qemuBuildGraphicsSPICECommandLine(virQEMUDriverConfigPtr cfg,
         case VIR_DOMAIN_GRAPHICS_SPICE_MOUSE_MODE_CLIENT:
             virBufferAddLit(&opt, "agent-mouse=on,");
             break;
-        default:
+        case VIR_DOMAIN_GRAPHICS_SPICE_MOUSE_MODE_DEFAULT:
             break;
+        case VIR_DOMAIN_GRAPHICS_SPICE_MOUSE_MODE_LAST:
+        default:
+            virReportEnumRangeError(virDomainGraphicsSpiceMouseMode,
+                                    graphics->data.spice.mousemode);
+            goto error;
         }
     }
 

src/qemu/qemu_domain.c

@@ -2804,6 +2804,27 @@ qemuDomainDefAddDefaultDevices(virDomainDefPtr def,
         addPCIRoot = true;
         break;
 
+    case VIR_ARCH_ARMV6L:
+    case VIR_ARCH_ARMV7B:
+    case VIR_ARCH_CRIS:
+    case VIR_ARCH_ITANIUM:
+    case VIR_ARCH_LM32:
+    case VIR_ARCH_M68K:
+    case VIR_ARCH_MICROBLAZE:
+    case VIR_ARCH_MICROBLAZEEL:
+    case VIR_ARCH_MIPS:
+    case VIR_ARCH_MIPSEL:
+    case VIR_ARCH_MIPS64:
+    case VIR_ARCH_MIPS64EL:
+    case VIR_ARCH_OR32:
+    case VIR_ARCH_PARISC:
+    case VIR_ARCH_PARISC64:
+    case VIR_ARCH_PPCLE:
+    case VIR_ARCH_UNICORE32:
+    case VIR_ARCH_XTENSA:
+    case VIR_ARCH_XTENSAEB:
+    case VIR_ARCH_NONE:
+    case VIR_ARCH_LAST:
     default:
         break;
     }

src/qemu/qemu_driver.c

@@ -3016,13 +3016,8 @@ qemuCompressGetCommand(virQEMUSaveFormat compression)
     ret = virCommandNew(prog);
     virCommandAddArg(ret, "-dc");
 
-    switch (compression) {
+    if (compression == QEMU_SAVE_FORMAT_LZOP)
-    case QEMU_SAVE_FORMAT_LZOP:
         virCommandAddArg(ret, "--ignore-warn");
-        break;
-    default:
-        break;
-    }
 
     return ret;
 }
@@ -17792,11 +17787,18 @@ qemuDomainOpenGraphics(virDomainPtr dom,
     case VIR_DOMAIN_GRAPHICS_TYPE_SPICE:
         protocol = "spice";
         break;
-    default:
+    case VIR_DOMAIN_GRAPHICS_TYPE_SDL:
+    case VIR_DOMAIN_GRAPHICS_TYPE_RDP:
+    case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP:
         virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                        _("Can only open VNC or SPICE graphics backends, not %s"),
                        virDomainGraphicsTypeToString(vm->def->graphics[idx]->type));
         goto endjob;
+    case VIR_DOMAIN_GRAPHICS_TYPE_LAST:
+    default:
+        virReportEnumRangeError(virDomainGraphicsType,
+                                vm->def->graphics[idx]->type);
+        goto endjob;
     }
 
     if (qemuSecuritySetImageFDLabel(driver->securityManager, vm->def, fd) < 0)
@@ -17856,11 +17858,18 @@ qemuDomainOpenGraphicsFD(virDomainPtr dom,
     case VIR_DOMAIN_GRAPHICS_TYPE_SPICE:
         protocol = "spice";
         break;
-    default:
+    case VIR_DOMAIN_GRAPHICS_TYPE_SDL:
+    case VIR_DOMAIN_GRAPHICS_TYPE_RDP:
+    case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP:
         virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                        _("Can only open VNC or SPICE graphics backends, not %s"),
                        virDomainGraphicsTypeToString(vm->def->graphics[idx]->type));
         goto cleanup;
+    case VIR_DOMAIN_GRAPHICS_TYPE_LAST:
+    default:
+        virReportEnumRangeError(virDomainGraphicsType,
+                                vm->def->graphics[idx]->type);
+        goto cleanup;
     }
 
     if (qemuSecuritySetSocketLabel(driver->securityManager, vm->def) < 0)

src/qemu/qemu_hotplug.c

@@ -2978,11 +2978,24 @@ qemuDomainChangeNetFilter(virDomainObjPtr vm,
     case VIR_DOMAIN_NET_TYPE_BRIDGE:
     case VIR_DOMAIN_NET_TYPE_NETWORK:
         break;
-    default:
+    case VIR_DOMAIN_NET_TYPE_USER:
+    case VIR_DOMAIN_NET_TYPE_VHOSTUSER:
+    case VIR_DOMAIN_NET_TYPE_SERVER:
+    case VIR_DOMAIN_NET_TYPE_CLIENT:
+    case VIR_DOMAIN_NET_TYPE_MCAST:
+    case VIR_DOMAIN_NET_TYPE_INTERNAL:
+    case VIR_DOMAIN_NET_TYPE_DIRECT:
+    case VIR_DOMAIN_NET_TYPE_HOSTDEV:
+    case VIR_DOMAIN_NET_TYPE_UDP:
         virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                        _("filters not supported on interfaces of type %s"),
                        virDomainNetTypeToString(virDomainNetGetActualType(newdev)));
         return -1;
+    case VIR_DOMAIN_NET_TYPE_LAST:
+    default:
+        virReportEnumRangeError(virDomainNetType,
+                                virDomainNetGetActualType(newdev));
+        return -1;
     }
 
     virDomainConfNWFilterTeardown(olddev);
@@ -3277,12 +3290,16 @@ qemuDomainChangeNet(virQEMUDriverPtr driver,
             /* all handled in common code directly below this switch */
             break;
 
-        default:
+        case VIR_DOMAIN_NET_TYPE_VHOSTUSER:
+        case VIR_DOMAIN_NET_TYPE_HOSTDEV:
             virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
                            _("unable to change config on '%s' network type"),
                            virDomainNetTypeToString(newdev->type));
-            break;
+            goto cleanup;
-
+        case VIR_DOMAIN_NET_TYPE_LAST:
+        default:
+            virReportEnumRangeError(virDomainNetType, newdev->type);
+            goto cleanup;
         }
     } else {
         /* interface type has changed. There are a few special cases
@@ -3661,10 +3678,16 @@ qemuDomainChangeGraphics(virQEMUDriverPtr driver,
         }
         break;
 
-    default:
+    case VIR_DOMAIN_GRAPHICS_TYPE_SDL:
+    case VIR_DOMAIN_GRAPHICS_TYPE_RDP:
+    case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP:
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("unable to change config on '%s' graphics type"), type);
         break;
+    case VIR_DOMAIN_GRAPHICS_TYPE_LAST:
+    default:
+        virReportEnumRangeError(virDomainGraphicsType, dev->type);
+        break;
     }
 
  cleanup:

src/qemu/qemu_migration.c

@@ -1468,11 +1468,20 @@ qemuMigrationJobName(virDomainObjPtr vm)
 
     switch (priv->job.asyncJob) {
     case QEMU_ASYNC_JOB_MIGRATION_OUT:
-        return _("migration job");
+        return _("migration out job");
     case QEMU_ASYNC_JOB_SAVE:
         return _("domain save job");
     case QEMU_ASYNC_JOB_DUMP:
         return _("domain core dump job");
+    case QEMU_ASYNC_JOB_NONE:
+        return _("undefined");
+    case QEMU_ASYNC_JOB_MIGRATION_IN:
+        return _("migration in job");
+    case QEMU_ASYNC_JOB_SNAPSHOT:
+        return _("snapshot job");
+    case QEMU_ASYNC_JOB_START:
+        return _("start job");
+    case QEMU_ASYNC_JOB_LAST:
     default:
         return _("job");
     }

src/qemu/qemu_process.c

@@ -679,6 +679,8 @@ qemuProcessHandleShutdown(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
         detail = VIR_DOMAIN_EVENT_SHUTDOWN_HOST;
         break;
 
+    case VIR_TRISTATE_BOOL_ABSENT:
+    case VIR_TRISTATE_BOOL_LAST:
     default:
         detail = VIR_DOMAIN_EVENT_SHUTDOWN_FINISHED;
         break;