1 // SPDX-License-Identifier: GPL-2.0+
18  * struct ta_entry - TA entries
19  * @uuid:		UUID of an emulated TA
26 	struct tee_optee_ta_uuid uuid;  member
163 	{ .uuid = TA_AVB_UUID,
170 static void sandbox_tee_get_version(struct udevice *dev,  in sandbox_tee_get_version()  argument
180 static int sandbox_tee_close_session(struct udevice *dev, u32 session)  in sandbox_tee_close_session()  argument
182 	struct sandbox_tee_state *state = dev_get_priv(dev);  in sandbox_tee_close_session()
184 	if (!state->ta || state->session != session)  in sandbox_tee_close_session()
185 		return -EINVAL;  in sandbox_tee_close_session()
187 	state->session = 0;  in sandbox_tee_close_session()
188 	state->ta = NULL;  in sandbox_tee_close_session()
193 static const struct ta_entry *find_ta_entry(u8 uuid[TEE_UUID_LEN])  in find_ta_entry()
198 	tee_optee_ta_uuid_from_octets(&u, uuid);  in find_ta_entry()
201 		if (!memcmp(&u, &ta_entries[n].uuid, sizeof(u)))  in find_ta_entry()
207 static int sandbox_tee_open_session(struct udevice *dev,  in sandbox_tee_open_session()  argument
211 	struct sandbox_tee_state *state = dev_get_priv(dev);  in sandbox_tee_open_session()
214 	if (state->ta) {  in sandbox_tee_open_session()
216 		return -EBUSY;  in sandbox_tee_open_session()
219 	ta = find_ta_entry(arg->uuid);  in sandbox_tee_open_session()
222 		arg->ret = TEE_ERROR_ITEM_NOT_FOUND;  in sandbox_tee_open_session()
223 		arg->ret_origin = TEE_ORIGIN_TEE;  in sandbox_tee_open_session()
228 	arg->ret = ta->open_session(num_params, params);  in sandbox_tee_open_session()
229 	arg->ret_origin = TEE_ORIGIN_TRUSTED_APP;  in sandbox_tee_open_session()
231 	if (!arg->ret) {  in sandbox_tee_open_session()
232 		state->ta = (void *)ta;  in sandbox_tee_open_session()
233 		state->session = 1;  in sandbox_tee_open_session()
234 		arg->session = state->session;  in sandbox_tee_open_session()
242 static int sandbox_tee_invoke_func(struct udevice *dev,  in sandbox_tee_invoke_func()  argument
246 	struct sandbox_tee_state *state = dev_get_priv(dev);  in sandbox_tee_invoke_func()
247 	struct ta_entry *ta = state->ta;  in sandbox_tee_invoke_func()
249 	if (!arg->session) {  in sandbox_tee_invoke_func()
251 		return -EINVAL;  in sandbox_tee_invoke_func()
256 		return -EINVAL;  in sandbox_tee_invoke_func()
259 	if (arg->session != state->session) {  in sandbox_tee_invoke_func()
261 		return -EINVAL;  in sandbox_tee_invoke_func()
264 	arg->ret = ta->invoke_func(arg->func, num_params, params);  in sandbox_tee_invoke_func()
265 	arg->ret_origin = TEE_ORIGIN_TRUSTED_APP;  in sandbox_tee_invoke_func()
270 static int sandbox_tee_shm_register(struct udevice *dev, struct tee_shm *shm)  in sandbox_tee_shm_register()  argument
272 	struct sandbox_tee_state *state = dev_get_priv(dev);  in sandbox_tee_shm_register()
274 	state->num_shms++;  in sandbox_tee_shm_register()
279 static int sandbox_tee_shm_unregister(struct udevice *dev, struct tee_shm *shm)  in sandbox_tee_shm_unregister()  argument
281 	struct sandbox_tee_state *state = dev_get_priv(dev);  in sandbox_tee_shm_unregister()
283 	state->num_shms--;  in sandbox_tee_shm_unregister()