cmd_ut_optee.c
3.69 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2019, Theobroma Systems Design und Consulting GmbH
*/
#include <common.h>
#include <command.h>
#include <errno.h>
#include <fdt_support.h>
#include <malloc.h>
#include <tee/optee.h>
#include <linux/sizes.h>
#include <test/ut.h>
#include <test/optee.h>
#include <test/suites.h>
/* 4k ought to be enough for anybody */
#define FDT_COPY_SIZE (4 * SZ_1K)
extern u32 __dtb_test_optee_base_begin;
extern u32 __dtb_test_optee_optee_begin;
extern u32 __dtb_test_optee_no_optee_begin;
static void *fdt;
static bool expect_success;
static int optee_fdt_firmware(struct unit_test_state *uts)
{
const void *prop;
int offs, len;
offs = fdt_path_offset(fdt, "/firmware/optee");
ut_assert(expect_success ? offs >= 0 : offs < 0);
/* only continue if we have an optee node */
if (offs < 0)
return CMD_RET_SUCCESS;
prop = fdt_getprop(fdt, offs, "compatible", &len);
ut_assertok(strncmp((const char *)prop, "linaro,optee-tz", len));
prop = fdt_getprop(fdt, offs, "method", &len);
ut_assert(strncmp(prop, "hvc", 3) == 0 || strncmp(prop, "smc", 3) == 0);
return CMD_RET_SUCCESS;
}
OPTEE_TEST(optee_fdt_firmware, 0);
static int optee_fdt_protected_memory(struct unit_test_state *uts)
{
int offs, subnode;
bool found;
offs = fdt_path_offset(fdt, "/firmware/optee");
ut_assert(expect_success ? offs >= 0 : offs < 0);
/* only continue if we have an optee node */
if (offs < 0)
return CMD_RET_SUCCESS;
/* optee inserts its memory regions as reserved-memory nodes */
offs = fdt_subnode_offset(fdt, 0, "reserved-memory");
ut_assert(offs >= 0);
subnode = fdt_first_subnode(fdt, offs);
ut_assert(subnode);
found = 0;
while (subnode >= 0) {
const char *name = fdt_get_name(fdt, subnode, NULL);
struct fdt_resource res;
ut_assert(name);
/* only handle optee reservations */
if (strncmp(name, "optee", 5))
continue;
found = true;
/* check if this subnode has a reg property */
ut_assertok(fdt_get_resource(fdt, subnode, "reg", 0, &res));
subnode = fdt_next_subnode(fdt, subnode);
}
ut_assert(found);
return CMD_RET_SUCCESS;
}
OPTEE_TEST(optee_fdt_protected_memory, 0);
int do_ut_optee(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
struct unit_test *tests = ll_entry_start(struct unit_test,
optee_test);
const int n_ents = ll_entry_count(struct unit_test, optee_test);
struct unit_test_state *uts;
void *fdt_optee = &__dtb_test_optee_optee_begin;
void *fdt_no_optee = &__dtb_test_optee_no_optee_begin;
void *fdt_base = &__dtb_test_optee_base_begin;
int ret = -ENOMEM;
uts = calloc(1, sizeof(*uts));
if (!uts)
return -ENOMEM;
ut_assertok(fdt_check_header(fdt_base));
ut_assertok(fdt_check_header(fdt_optee));
ut_assertok(fdt_check_header(fdt_no_optee));
fdt = malloc(FDT_COPY_SIZE);
if (!fdt)
return ret;
/*
* Resize the FDT to 4k so that we have room to operate on
*
* (and relocate it since the memory might be mapped
* read-only)
*/
ut_assertok(fdt_open_into(fdt_base, fdt, FDT_COPY_SIZE));
/*
* (1) Try to copy optee nodes from empty dt.
* This should still run successfully.
*/
ut_assertok(optee_copy_fdt_nodes(fdt_no_optee, fdt));
expect_success = false;
ret = cmd_ut_category("optee", "", tests, n_ents, argc, argv);
/* (2) Try to copy optee nodes from prefilled dt */
ut_assertok(optee_copy_fdt_nodes(fdt_optee, fdt));
expect_success = true;
ret = cmd_ut_category("optee", "", tests, n_ents, argc, argv);
/* (3) Try to copy OP-TEE nodes into a already filled DT */
ut_assertok(fdt_open_into(fdt_optee, fdt, FDT_COPY_SIZE));
ut_assertok(optee_copy_fdt_nodes(fdt_optee, fdt));
expect_success = true;
ret = cmd_ut_category("optee", "", tests, n_ents, argc, argv);
free(fdt);
return ret;
}