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 <log.h>
  8. #include <malloc.h>
  9. #include <dm/test.h>
  10. #include <sandboxtee.h>
  11. #include <tee.h>
  12. #include <test/test.h>
  13. #include <test/ut.h>
  14. #include <tee/optee_ta_avb.h>
  15. static int open_session(struct udevice *dev, u32 *session)
  16. {
  17. struct tee_open_session_arg arg;
  18. const struct tee_optee_ta_uuid uuid = TA_AVB_UUID;
  19. int rc;
  20. memset(&arg, 0, sizeof(arg));
  21. tee_optee_ta_uuid_to_octets(arg.uuid, &uuid);
  22. rc = tee_open_session(dev, &arg, 0, NULL);
  23. if (rc)
  24. return rc;
  25. if (arg.ret)
  26. return -EIO;
  27. *session = arg.session;
  28. return 0;
  29. }
  30. static int invoke_func(struct udevice *dev, u32 session)
  31. {
  32. struct tee_param param = { .attr = TEE_PARAM_ATTR_TYPE_VALUE_OUTPUT };
  33. struct tee_invoke_arg arg;
  34. memset(&arg, 0, sizeof(arg));
  35. arg.session = session;
  36. arg.func = TA_AVB_CMD_READ_LOCK_STATE;
  37. if (tee_invoke_func(dev, &arg, 1, &param) || arg.ret)
  38. return -1;
  39. return 0;
  40. }
  41. static int match(struct tee_version_data *vers, const void *data)
  42. {
  43. return vers->gen_caps & TEE_GEN_CAP_GP;
  44. }
  45. struct test_tee_vars {
  46. struct tee_shm *reg_shm;
  47. struct tee_shm *alloc_shm;
  48. };
  49. static int test_tee(struct unit_test_state *uts, struct test_tee_vars *vars)
  50. {
  51. struct tee_version_data vers;
  52. struct udevice *dev;
  53. struct sandbox_tee_state *state;
  54. u32 session = 0;
  55. int rc;
  56. u8 data[128];
  57. dev = tee_find_device(NULL, match, NULL, &vers);
  58. ut_assert(dev);
  59. state = dev_get_priv(dev);
  60. ut_assert(!state->session);
  61. rc = open_session(dev, &session);
  62. ut_assert(!rc);
  63. ut_assert(session == state->session);
  64. rc = invoke_func(dev, session);
  65. ut_assert(!rc);
  66. rc = tee_close_session(dev, session);
  67. ut_assert(!rc);
  68. ut_assert(!state->session);
  69. ut_assert(!state->num_shms);
  70. rc = tee_shm_register(dev, data, sizeof(data), 0, &vars->reg_shm);
  71. ut_assert(!rc);
  72. ut_assert(state->num_shms == 1);
  73. rc = tee_shm_alloc(dev, 256, 0, &vars->alloc_shm);
  74. ut_assert(!rc);
  75. ut_assert(state->num_shms == 2);
  76. ut_assert(tee_shm_is_registered(vars->reg_shm, dev));
  77. ut_assert(tee_shm_is_registered(vars->alloc_shm, dev));
  78. tee_shm_free(vars->reg_shm);
  79. vars->reg_shm = NULL;
  80. tee_shm_free(vars->alloc_shm);
  81. vars->alloc_shm = NULL;
  82. ut_assert(!state->num_shms);
  83. return 0;
  84. }
  85. static int dm_test_tee(struct unit_test_state *uts)
  86. {
  87. struct test_tee_vars vars = { NULL, NULL };
  88. int rc = test_tee(uts, &vars);
  89. /* In case test_tee() asserts these may still remain allocated */
  90. tee_shm_free(vars.reg_shm);
  91. tee_shm_free(vars.alloc_shm);
  92. return rc;
  93. }
  94. DM_TEST(dm_test_tee, UT_TESTF_SCAN_FDT);