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