test/dm/tee.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2018 Linaro Limited
   4  */
   5
   6 #include <common.h>
   7 #include <dm.h>
   8 #include <dm/test.h>
   9 #include <sandboxtee.h>
  10 #include <tee.h>
  11 #include <test/ut.h>
  12 #include <tee/optee_ta_avb.h>
  13
  14 static int open_session(struct udevice *dev, u32 *session)
  15 {
  16         struct tee_open_session_arg arg;
  17         const struct tee_optee_ta_uuid uuid = TA_AVB_UUID;
  18         int rc;
  19
  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
  29         return 0;
  30 }
  31
  32 static int invoke_func(struct udevice *dev, u32 session)
  33 {
  34         struct tee_param param = { .attr = TEE_PARAM_ATTR_TYPE_VALUE_OUTPUT };
  35         struct tee_invoke_arg arg;
  36
  37         memset(&arg, 0, sizeof(arg));
  38         arg.session = session;
  39         arg.func = TA_AVB_CMD_READ_LOCK_STATE;
  40
  41         if (tee_invoke_func(dev, &arg, 1, &param) || arg.ret)
  42                 return -1;
  43
  44         return 0;
  45 }
  46
  47 static int match(struct tee_version_data *vers, const void *data)
  48 {
  49         return vers->gen_caps & TEE_GEN_CAP_GP;
  50 }
  51
  52 struct test_tee_vars {
  53         struct tee_shm *reg_shm;
  54         struct tee_shm *alloc_shm;
  55 };
  56
  57 static int test_tee(struct unit_test_state *uts, struct test_tee_vars *vars)
  58 {
  59         struct tee_version_data vers;
  60         struct udevice *dev;
  61         struct sandbox_tee_state *state;
  62         u32 session = 0;
  63         int rc;
  64         u8 data[128];
  65
  66         dev = tee_find_device(NULL, match, NULL, &vers);
  67         ut_assert(dev);
  68         state = dev_get_priv(dev);
  69         ut_assert(!state->session);
  70
  71         rc = open_session(dev, &session);
  72         ut_assert(!rc);
  73         ut_assert(session == state->session);
  74
  75         rc = invoke_func(dev, session);
  76         ut_assert(!rc);
  77
  78         rc = tee_close_session(dev, session);
  79         ut_assert(!rc);
  80         ut_assert(!state->session);
  81
  82         ut_assert(!state->num_shms);
  83         rc = tee_shm_register(dev, data, sizeof(data), 0, &vars->reg_shm);
  84         ut_assert(!rc);
  85         ut_assert(state->num_shms == 1);
  86
  87         rc = tee_shm_alloc(dev, 256, 0, &vars->alloc_shm);
  88         ut_assert(!rc);
  89         ut_assert(state->num_shms == 2);
  90
  91         ut_assert(tee_shm_is_registered(vars->reg_shm, dev));
  92         ut_assert(tee_shm_is_registered(vars->alloc_shm, dev));
  93
  94         tee_shm_free(vars->reg_shm);
  95         vars->reg_shm = NULL;
  96         tee_shm_free(vars->alloc_shm);
  97         vars->alloc_shm = NULL;
  98         ut_assert(!state->num_shms);
  99
 100         return 0;
 101 }
 102
 103 static int dm_test_tee(struct unit_test_state *uts)
 104 {
 105         struct test_tee_vars vars = { NULL, NULL };
 106         int rc = test_tee(uts, &vars);
 107
 108         /* In case test_tee() asserts these may still remain allocated */
 109         tee_shm_free(vars.reg_shm);
 110         tee_shm_free(vars.alloc_shm);
 111
 112         return rc;
 113 }
 114
 115 DM_TEST(dm_test_tee, DM_TESTF_SCAN_FDT);