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 <log.h>
   9 #include <malloc.h>
  10 #include <dm/test.h>
  11 #include <sandboxtee.h>
  12 #include <tee.h>
  13 #include <test/ut.h>
  14 #include <tee/optee_ta_avb.h>
  15
  16 static int open_session(struct udevice *dev, u32 *session)
  17 {
  18         struct tee_open_session_arg arg;
  19         const struct tee_optee_ta_uuid uuid = TA_AVB_UUID;
  20         int rc;
  21
  22         memset(&arg, 0, sizeof(arg));
  23         tee_optee_ta_uuid_to_octets(arg.uuid, &uuid);
  24         rc = tee_open_session(dev, &arg, 0, NULL);
  25         if (rc)
  26                 return rc;
  27         if (arg.ret)
  28                 return -EIO;
  29         *session = arg.session;
  30
  31         return 0;
  32 }
  33
  34 static int invoke_func(struct udevice *dev, u32 session)
  35 {
  36         struct tee_param param = { .attr = TEE_PARAM_ATTR_TYPE_VALUE_OUTPUT };
  37         struct tee_invoke_arg arg;
  38
  39         memset(&arg, 0, sizeof(arg));
  40         arg.session = session;
  41         arg.func = TA_AVB_CMD_READ_LOCK_STATE;
  42
  43         if (tee_invoke_func(dev, &arg, 1, &param) || arg.ret)
  44                 return -1;
  45
  46         return 0;
  47 }
  48
  49 static int match(struct tee_version_data *vers, const void *data)
  50 {
  51         return vers->gen_caps & TEE_GEN_CAP_GP;
  52 }
  53
  54 struct test_tee_vars {
  55         struct tee_shm *reg_shm;
  56         struct tee_shm *alloc_shm;
  57 };
  58
  59 static int test_tee(struct unit_test_state *uts, struct test_tee_vars *vars)
  60 {
  61         struct tee_version_data vers;
  62         struct udevice *dev;
  63         struct sandbox_tee_state *state;
  64         u32 session = 0;
  65         int rc;
  66         u8 data[128];
  67
  68         dev = tee_find_device(NULL, match, NULL, &vers);
  69         ut_assert(dev);
  70         state = dev_get_priv(dev);
  71         ut_assert(!state->session);
  72
  73         rc = open_session(dev, &session);
  74         ut_assert(!rc);
  75         ut_assert(session == state->session);
  76
  77         rc = invoke_func(dev, session);
  78         ut_assert(!rc);
  79
  80         rc = tee_close_session(dev, session);
  81         ut_assert(!rc);
  82         ut_assert(!state->session);
  83
  84         ut_assert(!state->num_shms);
  85         rc = tee_shm_register(dev, data, sizeof(data), 0, &vars->reg_shm);
  86         ut_assert(!rc);
  87         ut_assert(state->num_shms == 1);
  88
  89         rc = tee_shm_alloc(dev, 256, 0, &vars->alloc_shm);
  90         ut_assert(!rc);
  91         ut_assert(state->num_shms == 2);
  92
  93         ut_assert(tee_shm_is_registered(vars->reg_shm, dev));
  94         ut_assert(tee_shm_is_registered(vars->alloc_shm, dev));
  95
  96         tee_shm_free(vars->reg_shm);
  97         vars->reg_shm = NULL;
  98         tee_shm_free(vars->alloc_shm);
  99         vars->alloc_shm = NULL;
 100         ut_assert(!state->num_shms);
 101
 102         return 0;
 103 }
 104
 105 static int dm_test_tee(struct unit_test_state *uts)
 106 {
 107         struct test_tee_vars vars = { NULL, NULL };
 108         int rc = test_tee(uts, &vars);
 109
 110         /* In case test_tee() asserts these may still remain allocated */
 111         tee_shm_free(vars.reg_shm);
 112         tee_shm_free(vars.alloc_shm);
 113
 114         return rc;
 115 }
 116
 117 DM_TEST(dm_test_tee, DM_TESTF_SCAN_FDT);