qemu: command: move qemuBuildTPMDevStr TPM validation to qemu_domain.c

qemuBuildTPMDevStr() does TPM model validation that can be moved to
qemu_domain.c, allowing validation in domain define time. This patch
moves it to the existing qemuDomainDeviceDefValidateTPM() function.
Reviewed-by: NCole Robinson <crobinso@redhat.com>
Signed-off-by: NDaniel Henrique Barboza <danielhb413@gmail.com>

src/qemu/qemu_command.c

@@ -9109,34 +9109,11 @@ qemuBuildDomainLoaderCommandLine(virCommandPtr cmd,
 
 
 static char *
-qemuBuildTPMDevStr(const virDomainDef *def,
-                   virQEMUCapsPtr qemuCaps)
+qemuBuildTPMDevStr(const virDomainDef *def)
 {
     g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
     const virDomainTPMDef *tpm = def->tpm;
     const char *model = virDomainTPMModelTypeToString(tpm->model);
-    virQEMUCapsFlags flag;
-
-    switch (tpm->model) {
-    case VIR_DOMAIN_TPM_MODEL_TIS:
-        flag = QEMU_CAPS_DEVICE_TPM_TIS;
-        break;
-    case VIR_DOMAIN_TPM_MODEL_CRB:
-        flag = QEMU_CAPS_DEVICE_TPM_CRB;
-        break;
-    case VIR_DOMAIN_TPM_MODEL_LAST:
-    default:
-        virReportEnumRangeError(virDomainTPMModel, tpm->model);
-        return NULL;
-    }
-
-    if (!virQEMUCapsGet(qemuCaps, flag)) {
-        virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
-                       _("The QEMU executable %s does not support TPM "
-                       "model %s"),
-                       def->emulator, model);
-        return NULL;
-    }
 
     virBufferAsprintf(&buf, "%s,tpmdev=tpm-%s,id=%s",
                       model, tpm->info.alias, tpm->info.alias);
@@ -9230,8 +9207,7 @@ qemuBuildTPMBackendStr(const virDomainDef *def,
 
 static int
 qemuBuildTPMCommandLine(virCommandPtr cmd,
-                        const virDomainDef *def,
-                        virQEMUCapsPtr qemuCaps)
+                        const virDomainDef *def)
 {
     char *optstr;
     g_autofree char *chardev = NULL;
@@ -9271,7 +9247,7 @@ qemuBuildTPMCommandLine(virCommandPtr cmd,
         VIR_FREE(fdset);
     }
 
-    if (!(optstr = qemuBuildTPMDevStr(def, qemuCaps)))
+    if (!(optstr = qemuBuildTPMDevStr(def)))
         return -1;
 
     virCommandAddArgList(cmd, "-device", optstr, NULL);
@@ -9995,7 +9971,7 @@ qemuBuildCommandLine(virQEMUDriverPtr driver,
                                     chardevStdioLogd) < 0)
         return NULL;
 
-    if (qemuBuildTPMCommandLine(cmd, def, qemuCaps) < 0)
+    if (qemuBuildTPMCommandLine(cmd, def) < 0)
         return NULL;
 
     if (qemuBuildInputCommandLine(cmd, def, qemuCaps) < 0)

src/qemu/qemu_domain.c

@@ -7630,6 +7630,8 @@ qemuDomainDeviceDefValidateTPM(virDomainTPMDef *tpm,
                                const virDomainDef *def,
                                virQEMUCapsPtr qemuCaps)
 {
+    virQEMUCapsFlags flag;
+
     /* TPM 1.2 and 2 are not compatible, so we choose a specific version here */
     if (tpm->version == VIR_DOMAIN_TPM_VERSION_DEFAULT)
         tpm->version = VIR_DOMAIN_TPM_VERSION_1_2;
@@ -7666,6 +7668,28 @@ qemuDomainDeviceDefValidateTPM(virDomainTPMDef *tpm,
         break;
     }
 
+    switch (tpm->model) {
+    case VIR_DOMAIN_TPM_MODEL_TIS:
+        flag = QEMU_CAPS_DEVICE_TPM_TIS;
+        break;
+    case VIR_DOMAIN_TPM_MODEL_CRB:
+        flag = QEMU_CAPS_DEVICE_TPM_CRB;
+        break;
+    case VIR_DOMAIN_TPM_MODEL_LAST:
+    default:
+        virReportEnumRangeError(virDomainTPMModel, tpm->model);
+        return -1;
+    }
+
+    if (!virQEMUCapsGet(qemuCaps, flag)) {
+        virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+                       _("The QEMU executable %s does not support TPM "
+                         "model %s"),
+                       def->emulator,
+                       virDomainTPMModelTypeToString(tpm->model));
+        return -1;
+    }
+
     return 0;
 
  no_support: