static QLIST_HEAD(, TPMBackend) tpm_backends =
QLIST_HEAD_INITIALIZER(tpm_backends);
-static TPMDriverOps const *be_drivers[TPM_TYPE__MAX];
static bool tpm_models[TPM_MODEL__MAX];
void tpm_register_model(enum TpmModel model)
tpm_models[model] = true;
}
-const TPMDriverOps *tpm_get_backend_driver(const char *type)
+static const TPMBackendClass *
+tpm_be_find_by_type(enum TpmType type)
{
- int i = qapi_enum_parse(&TpmType_lookup, type, -1, NULL);
+ ObjectClass *oc;
+ char *typename = g_strdup_printf("tpm-%s", TpmType_str(type));
- return i >= 0 ? be_drivers[i] : NULL;
-}
-
-#ifdef CONFIG_TPM
+ oc = object_class_by_name(typename);
+ g_free(typename);
-void tpm_register_driver(const TPMDriverOps *tdo)
-{
- assert(!be_drivers[tdo->type]);
+ if (!object_class_dynamic_cast(oc, TYPE_TPM_BACKEND)) {
+ return NULL;
+ }
- be_drivers[tdo->type] = tdo;
+ return TPM_BACKEND_CLASS(oc);
}
/*
fprintf(stderr, "Supported TPM types (choose only one):\n");
for (i = 0; i < TPM_TYPE__MAX; i++) {
- if (be_drivers[i] == NULL) {
+ const TPMBackendClass *bc = tpm_be_find_by_type(i);
+ if (!bc) {
continue;
}
- fprintf(stderr, "%12s %s\n",
- TpmType_str(i), be_drivers[i]->desc);
+ fprintf(stderr, "%12s %s\n", TpmType_str(i), bc->desc);
}
fprintf(stderr, "\n");
}
return NULL;
}
-static int configure_tpm(QemuOpts *opts)
+static int tpm_init_tpmdev(void *dummy, QemuOpts *opts, Error **errp)
{
const char *value;
const char *id;
- const TPMDriverOps *be;
+ const TPMBackendClass *be;
TPMBackend *drv;
Error *local_err = NULL;
+ int i;
if (!QLIST_EMPTY(&tpm_backends)) {
error_report("Only one TPM is allowed.");
return 1;
}
- be = tpm_get_backend_driver(value);
+ i = qapi_enum_parse(&TpmType_lookup, value, -1, NULL);
+ be = i >= 0 ? tpm_be_find_by_type(i) : NULL;
if (be == NULL) {
error_report(QERR_INVALID_PARAMETER_VALUE,
"type", "a TPM backend type");
return 0;
}
-static int tpm_init_tpmdev(void *dummy, QemuOpts *opts, Error **errp)
-{
- return configure_tpm(opts);
-}
-
/*
* Walk the list of TPM backend drivers that are in use and call their
* destroy function to have them cleaned up.
return 0;
}
-#endif /* CONFIG_TPM */
-
-static const TPMDriverOps *tpm_driver_find_by_type(enum TpmType type)
-{
- return be_drivers[type];
-}
-
/*
* Walk the list of active TPM backends and collect information about them
* following the schema description in qapi-schema.json.
TpmTypeList *head = NULL, *prev = NULL, *cur_item;
for (i = 0; i < TPM_TYPE__MAX; i++) {
- if (!tpm_driver_find_by_type(i)) {
+ if (!tpm_be_find_by_type(i)) {
continue;
}
cur_item = g_new0(TpmTypeList, 1);