*
* Based on net.c
*/
+
#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qapi/qapi-commands-tpm.h"
#include "qapi/qmp/qerror.h"
#include "sysemu/tpm_backend.h"
#include "sysemu/tpm.h"
#include "qemu/config-file.h"
#include "qemu/error-report.h"
-#include "qmp-commands.h"
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)
+static const TPMBackendClass *
+tpm_be_find_by_type(enum TpmType type)
{
- tpm_models[model] = true;
-}
+ ObjectClass *oc;
+ char *typename = g_strdup_printf("tpm-%s", TpmType_str(type));
-const TPMDriverOps *tpm_get_backend_driver(const char *type)
-{
- int i = qapi_enum_parse(&TpmType_lookup, type, -1, NULL);
+ oc = object_class_by_name(typename);
+ g_free(typename);
- return i >= 0 ? be_drivers[i] : NULL;
-}
-
-#ifdef CONFIG_TPM
-
-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);
}
/*
*/
static void tpm_display_backend_drivers(void)
{
+ bool got_one = false;
int i;
- 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);
+ if (!got_one) {
+ error_printf("Supported TPM types (choose only one):\n");
+ got_one = true;
+ }
+ error_printf("%12s %s\n", TpmType_str(i), bc->desc);
+ }
+ if (!got_one) {
+ error_printf("No TPM backend types are available\n");
}
- fprintf(stderr, "\n");
}
/*
* Find the TPM with the given Id
*/
-TPMBackend *qemu_find_tpm(const char *id)
+TPMBackend *qemu_find_tpm_be(const char *id)
{
TPMBackend *drv;
return NULL;
}
-static int configure_tpm(QemuOpts *opts)
+static int tpm_init_tpmdev(void *dummy, QemuOpts *opts, Error **errp)
{
+ /*
+ * Use of error_report() in a function with an Error ** parameter
+ * is suspicious. It is okay here. The parameter only exists to
+ * make the function usable with qemu_opts_foreach(). It is not
+ * actually used.
+ */
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");
}
/* validate backend specific opts */
- qemu_opts_validate(opts, be->opts, &local_err);
- if (local_err) {
+ if (!qemu_opts_validate(opts, be->opts, &local_err)) {
error_report_err(local_err);
return 1;
}
- drv = be->create(opts, id);
+ drv = be->create(opts);
if (!drv) {
return 1;
}
- tpm_backend_open(drv, &local_err);
- if (local_err) {
- error_report_err(local_err);
- return 1;
- }
-
+ drv->id = g_strdup(id);
QLIST_INSERT_HEAD(&tpm_backends, drv, list);
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.
+ * Walk the list of active TPM backends and collect information about them.
*/
TPMInfoList *qmp_query_tpm(Error **errp)
{
TPMInfoList *info, *head = NULL, *cur_item = NULL;
QLIST_FOREACH(drv, &tpm_backends, list) {
- if (!tpm_models[drv->fe_model]) {
+ if (!drv->tpmif) {
continue;
}
+
info = g_new0(TPMInfoList, 1);
info->value = tpm_backend_query_tpm(drv);
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);
return head;
}
-
TpmModelList *qmp_query_tpm_models(Error **errp)
{
- unsigned int i = 0;
TpmModelList *head = NULL, *prev = NULL, *cur_item;
+ GSList *e, *l = object_class_get_list(TYPE_TPM_IF, false);
+
+ for (e = l; e; e = e->next) {
+ TPMIfClass *c = TPM_IF_CLASS(e->data);
- for (i = 0; i < TPM_MODEL__MAX; i++) {
- if (!tpm_models[i]) {
- continue;
- }
cur_item = g_new0(TpmModelList, 1);
- cur_item->value = i;
+ cur_item->value = c->model;
if (prev) {
prev->next = cur_item;
}
prev = cur_item;
}
+ g_slist_free(l);
return head;
}
projects / mirror_qemu.git / blobdiff