tee.c 2.5 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright (C) 2018 Linaro Limited
  4. */
  5. #include <common.h>
  6. #include <dm.h>
  7. #include <dm/test.h>
  8. #include <sandboxtee.h>
  9. #include <tee.h>
  10. #include <test/ut.h>
  11. #include <tee/optee_ta_avb.h>
  12. static int open_session(struct udevice *dev, u32 *session)
  13. {
  14. struct tee_open_session_arg arg;
  15. const struct tee_optee_ta_uuid uuid = TA_AVB_UUID;
  16. int rc;
  17. memset(&arg, 0, sizeof(arg));
  18. tee_optee_ta_uuid_to_octets(arg.uuid, &uuid);
  19. rc = tee_open_session(dev, &arg, 0, NULL);
  20. if (rc)
  21. return rc;
  22. if (arg.ret)
  23. return -EIO;
  24. *session = arg.session;
  25. return 0;
  26. }
  27. static int invoke_func(struct udevice *dev, u32 session)
  28. {
  29. struct tee_param param = { .attr = TEE_PARAM_ATTR_TYPE_VALUE_OUTPUT };
  30. struct tee_invoke_arg arg;
  31. memset(&arg, 0, sizeof(arg));
  32. arg.session = session;
  33. arg.func = TA_AVB_CMD_READ_LOCK_STATE;
  34. if (tee_invoke_func(dev, &arg, 1, &param) || arg.ret)
  35. return -1;
  36. return 0;
  37. }
  38. static int match(struct tee_version_data *vers, const void *data)
  39. {
  40. return vers->gen_caps & TEE_GEN_CAP_GP;
  41. }
  42. struct test_tee_vars {
  43. struct tee_shm *reg_shm;
  44. struct tee_shm *alloc_shm;
  45. };
  46. static int test_tee(struct unit_test_state *uts, struct test_tee_vars *vars)
  47. {
  48. struct tee_version_data vers;
  49. struct udevice *dev;
  50. struct sandbox_tee_state *state;
  51. u32 session = 0;
  52. int rc;
  53. u8 data[128];
  54. dev = tee_find_device(NULL, match, NULL, &vers);
  55. ut_assert(dev);
  56. state = dev_get_priv(dev);
  57. ut_assert(!state->session);
  58. rc = open_session(dev, &session);
  59. ut_assert(!rc);
  60. ut_assert(session == state->session);
  61. rc = invoke_func(dev, session);
  62. ut_assert(!rc);
  63. rc = tee_close_session(dev, session);
  64. ut_assert(!rc);
  65. ut_assert(!state->session);
  66. ut_assert(!state->num_shms);
  67. rc = tee_shm_register(dev, data, sizeof(data), 0, &vars->reg_shm);
  68. ut_assert(!rc);
  69. ut_assert(state->num_shms == 1);
  70. rc = tee_shm_alloc(dev, 256, 0, &vars->alloc_shm);
  71. ut_assert(!rc);
  72. ut_assert(state->num_shms == 2);
  73. ut_assert(tee_shm_is_registered(vars->reg_shm, dev));
  74. ut_assert(tee_shm_is_registered(vars->alloc_shm, dev));
  75. tee_shm_free(vars->reg_shm);
  76. vars->reg_shm = NULL;
  77. tee_shm_free(vars->alloc_shm);
  78. vars->alloc_shm = NULL;
  79. ut_assert(!state->num_shms);
  80. return 0;
  81. }
  82. static int dm_test_tee(struct unit_test_state *uts)
  83. {
  84. struct test_tee_vars vars = { NULL, NULL };
  85. int rc = test_tee(uts, &vars);
  86. /* In case test_tee() asserts these may still remain allocated */
  87. tee_shm_free(vars.reg_shm);
  88. tee_shm_free(vars.alloc_shm);
  89. return rc;
  90. }
  91. DM_TEST(dm_test_tee, DM_TESTF_SCAN_FDT);