conf: Move _virDomainTPMDef::version into _virDomainTPMDef::data::emulator

The _virDomainTPMDef structure has 'version' member, which is a
bit misplaced. It's only emulator type of TPM that can have a
version, even our documentation says so:

``version``
   The ``version`` attribute indicates the version of the TPM. This attribute
   only works with the ``emulator`` backend. The following versions are
   supported:

Therefore, move the member into that part of union that's
covering emulated TPM devices.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>

src/conf/domain_conf.c

@@ -10413,15 +10413,6 @@ virDomainTPMDefParseXML(virDomainXMLOption *xmlopt,
         goto error;
     }
 
-    version = virXMLPropString(backends[0], "version");
-    if (version &&
-        (def->version = virDomainTPMVersionTypeFromString(version)) <= 0) {
-        virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
-                       _("Unsupported TPM version '%s'"),
-                       version);
-        goto error;
-    }
-
     switch (def->type) {
     case VIR_DOMAIN_TPM_TYPE_PASSTHROUGH:
         if (!(def->data.passthrough.source = virDomainChrSourceDefNew(xmlopt)))
@@ -10433,6 +10424,15 @@ virDomainTPMDefParseXML(virDomainXMLOption *xmlopt,
         def->data.passthrough.source->data.file.path = g_steal_pointer(&path);
         break;
     case VIR_DOMAIN_TPM_TYPE_EMULATOR:
+        version = virXMLPropString(backends[0], "version");
+        if (version &&
+            (def->data.emulator.version = virDomainTPMVersionTypeFromString(version)) <= 0) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+                           _("Unsupported TPM version '%s'"),
+                           version);
+            goto error;
+        }
+
         if (!(def->data.emulator.source = virDomainChrSourceDefNew(xmlopt)))
             goto error;
         secretuuid = virXPathString("string(./backend/encryption/@secret)", ctxt);
@@ -10454,7 +10454,7 @@ virDomainTPMDefParseXML(virDomainXMLOption *xmlopt,
                 goto error;
             }
         }
-        if (def->version == VIR_DOMAIN_TPM_VERSION_2_0) {
+        if (def->data.emulator.version == VIR_DOMAIN_TPM_VERSION_2_0) {
             if ((nnodes = virXPathNodeSet("./backend/active_pcr_banks/*", ctxt, &nodes)) < 0)
                 break;
             for (i = 0; i < nnodes; i++) {
@@ -20679,14 +20679,14 @@ virDomainTPMDefCheckABIStability(virDomainTPMDef *src,
         return false;
     }
 
-    if (src->version != dst->version) {
-        virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                       _("Target TPM version doesn't match source"));
-        return false;
-    }
-
     switch (src->type) {
     case VIR_DOMAIN_TPM_TYPE_EMULATOR:
+        if (src->data.emulator.version != dst->data.emulator.version) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                           _("Target TPM version doesn't match source"));
+            return false;
+        }
+
         if (src->data.emulator.activePcrBanks != dst->data.emulator.activePcrBanks) {
             virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
                            _("Target active PCR banks doesn't match source"));
@@ -24241,9 +24241,9 @@ virDomainTPMDefFormat(virBuffer *buf,
                               def->data.passthrough.source->data.file.path);
         break;
     case VIR_DOMAIN_TPM_TYPE_EMULATOR:
-        if (def->version != VIR_DOMAIN_TPM_VERSION_DEFAULT) {
+        if (def->data.emulator.version != VIR_DOMAIN_TPM_VERSION_DEFAULT) {
             virBufferAsprintf(&backendAttrBuf, " version='%s'",
-                              virDomainTPMVersionTypeToString(def->version));
+                              virDomainTPMVersionTypeToString(def->data.emulator.version));
         }
         if (def->data.emulator.persistent_state)
             virBufferAddLit(&backendAttrBuf, " persistent_state='yes'");

src/conf/domain_conf.h

@@ -1439,12 +1439,12 @@ struct _virDomainTPMDef {
     int type; /* virDomainTPMBackendType */
     virDomainDeviceInfo info;
     int model; /* virDomainTPMModel */
-    int version; /* virDomainTPMVersion */
     union {
         struct {
             virDomainChrSourceDef *source;
         } passthrough;
         struct {
+            int version; /* virDomainTPMVersion */
             virDomainChrSourceDef *source;
             char *storagepath;
             char *logfile;

src/qemu/qemu_domain.c

@@ -4594,13 +4594,14 @@ qemuDomainDefTPMsPostParse(virDomainDef *def)
         virDomainTPMDef *tpm = def->tpms[i];
 
         /* TPM 1.2 and 2 are not compatible, so we choose a specific version here */
-        if (tpm->version == VIR_DOMAIN_TPM_VERSION_DEFAULT) {
+        if (tpm->type == VIR_DOMAIN_TPM_TYPE_EMULATOR &&
+            tpm->data.emulator.version == VIR_DOMAIN_TPM_VERSION_DEFAULT) {
             if (tpm->model == VIR_DOMAIN_TPM_MODEL_SPAPR ||
                 tpm->model == VIR_DOMAIN_TPM_MODEL_CRB ||
                 qemuDomainIsARMVirt(def))
-                tpm->version = VIR_DOMAIN_TPM_VERSION_2_0;
+                tpm->data.emulator.version = VIR_DOMAIN_TPM_VERSION_2_0;
             else
-                tpm->version = VIR_DOMAIN_TPM_VERSION_1_2;
+                tpm->data.emulator.version = VIR_DOMAIN_TPM_VERSION_1_2;
         }
 
         if (tpm->model == VIR_DOMAIN_TPM_MODEL_SPAPR_PROXY) {

src/qemu/qemu_tpm.c

@@ -575,7 +575,8 @@ qemuTPMEmulatorBuildCommand(virDomainTPMDef *tpm,
     if (created &&
         qemuTPMEmulatorRunSetup(tpm->data.emulator.storagepath, vmname, vmuuid,
                                 privileged, swtpm_user, swtpm_group,
-                                tpm->data.emulator.logfile, tpm->version,
+                                tpm->data.emulator.logfile,
+                                tpm->data.emulator.version,
                                 secretuuid, incomingMigration) < 0)
         goto error;
 
@@ -583,7 +584,8 @@ qemuTPMEmulatorBuildCommand(virDomainTPMDef *tpm,
         qemuTPMEmulatorReconfigure(tpm->data.emulator.storagepath,
                                    swtpm_user, swtpm_group,
                                    tpm->data.emulator.activePcrBanks,
-                                   tpm->data.emulator.logfile, tpm->version,
+                                   tpm->data.emulator.logfile,
+                                   tpm->data.emulator.version,
                                    secretuuid) < 0)
         goto error;
 
@@ -611,7 +613,7 @@ qemuTPMEmulatorBuildCommand(virDomainTPMDef *tpm,
     virCommandSetUID(cmd, swtpm_user);
     virCommandSetGID(cmd, swtpm_group);
 
-    switch (tpm->version) {
+    switch (tpm->data.emulator.version) {
     case VIR_DOMAIN_TPM_VERSION_1_2:
         break;
     case VIR_DOMAIN_TPM_VERSION_2_0:
@@ -684,7 +686,7 @@ qemuTPMEmulatorInitPaths(virDomainTPMDef *tpm,
     if (!tpm->data.emulator.storagepath &&
         !(tpm->data.emulator.storagepath =
             qemuTPMEmulatorStorageBuildPath(swtpmStorageDir, uuidstr,
-                                            tpm->version)))
+                                            tpm->data.emulator.version)))
         return -1;
 
     if (!tpm->data.emulator.logfile) {

src/qemu/qemu_validate.c

@@ -4760,33 +4760,34 @@ qemuValidateDomainDeviceDefTPM(virDomainTPMDef *tpm,
 {
     virDomainCapsDeviceTPM tpmCaps = { 0 };
 
-    switch (tpm->version) {
+    if (tpm->type == VIR_DOMAIN_TPM_TYPE_EMULATOR) {
-    case VIR_DOMAIN_TPM_VERSION_1_2:
+        switch (tpm->data.emulator.version) {
-        /* TPM 1.2 + CRB do not work */
+        case VIR_DOMAIN_TPM_VERSION_1_2:
-        if (tpm->type == VIR_DOMAIN_TPM_TYPE_EMULATOR &&
+            /* TPM 1.2 + CRB do not work */
-            tpm->model == VIR_DOMAIN_TPM_MODEL_CRB) {
+            if (tpm->model == VIR_DOMAIN_TPM_MODEL_CRB) {
-            virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
-                           _("Unsupported interface %s for TPM 1.2"),
+                               _("Unsupported interface '%s' for TPM 1.2"),
-                           virDomainTPMModelTypeToString(tpm->model));
+                               virDomainTPMModelTypeToString(tpm->model));
-            return -1;
+                return -1;
+            }
+            /* TPM 1.2 + SPAPR do not work with any 'type' (backend) */
+            if (tpm->model == VIR_DOMAIN_TPM_MODEL_SPAPR) {
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                               _("TPM 1.2 is not supported with the SPAPR device model"));
+                return -1;
+            }
+            /* TPM 1.2 + ARM does not work */
+            if (qemuDomainIsARMVirt(def)) {
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                               _("TPM 1.2 is not supported on ARM"));
+                return -1;
+            }
+            break;
+        case VIR_DOMAIN_TPM_VERSION_2_0:
+        case VIR_DOMAIN_TPM_VERSION_DEFAULT:
+        case VIR_DOMAIN_TPM_VERSION_LAST:
+            break;
         }
-        /* TPM 1.2 + SPAPR do not work with any 'type' (backend) */
-        if (tpm->model == VIR_DOMAIN_TPM_MODEL_SPAPR) {
-            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                           _("TPM 1.2 is not supported with the SPAPR device model"));
-            return -1;
-        }
-        /* TPM 1.2 + ARM does not work */
-        if (qemuDomainIsARMVirt(def)) {
-            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                           _("TPM 1.2 is not supported on ARM"));
-            return -1;
-        }
-        break;
-    case VIR_DOMAIN_TPM_VERSION_2_0:
-    case VIR_DOMAIN_TPM_VERSION_DEFAULT:
-    case VIR_DOMAIN_TPM_VERSION_LAST:
-        break;
     }
 
     virQEMUCapsFillDomainDeviceTPMCaps(qemuCaps, &tpmCaps);

src/security/virt-aa-helper.c

@@ -1212,7 +1212,7 @@ get_files(vahControl * ctl)
 
             shortName = virDomainDefGetShortName(ctl->def);
 
-            switch (ctl->def->tpms[i]->version) {
+            switch (ctl->def->tpms[i]->data.emulator.version) {
             case VIR_DOMAIN_TPM_VERSION_1_2:
                 tpmpath = "tpm1.2";
                 break;