1 /* Copyright (c) 2018, Google Inc.
2 *
3 * Permission to use, copy, modify, and/or distribute this software for any
4 * purpose with or without fee is hereby granted, provided that the above
5 * copyright notice and this permission notice appear in all copies.
6 *
7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
14
15 #include "cpu-arm-linux.h"
16
17 #include <string.h>
18
19 #include <gtest/gtest.h>
20
21
TEST(ARMLinuxTest,CPUInfo)22 TEST(ARMLinuxTest, CPUInfo) {
23 struct CPUInfoTest {
24 const char *cpuinfo;
25 unsigned long hwcap;
26 unsigned long hwcap2;
27 bool broken_neon;
28 } kTests[] = {
29 // https://crbug.com/341598#c33
30 {
31 "Processor: ARMv7 Processory rev 0 (v71)\n"
32 "processor: 0\n"
33 "BogoMIPS: 13.50\n"
34 "\n"
35 "Processor: 1\n"
36 "BogoMIPS: 13.50\n"
37 "\n"
38 "Features: swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 "
39 "idiva idivt\n"
40 "CPU implementer : 0x51\n"
41 "CPU architecture: 7\n"
42 "CPU variant: 0x1\n"
43 "CPU part: 0x04d\n"
44 "CPU revision: 0\n"
45 "\n"
46 "Hardware: SAMSUNG M2\n"
47 "Revision: 0010\n"
48 "Serial: 00001e030000354e\n",
49 HWCAP_NEON,
50 0,
51 true,
52 },
53 // https://crbug.com/341598#c39
54 {
55 "Processor : ARMv7 Processor rev 0 (v7l)\n"
56 "processor : 0\n"
57 "BogoMIPS : 13.53\n"
58 "\n"
59 "Features : swp half thumb fastmult vfp edsp neon vfpv3 tls "
60 "vfpv4\n"
61 "CPU implementer : 0x51\n"
62 "CPU architecture: 7\n"
63 "CPU variant : 0x1\n"
64 "CPU part : 0x04d\n"
65 "CPU revision : 0\n"
66 "\n"
67 "Hardware : SAMSUNG M2_ATT\n"
68 "Revision : 0010\n"
69 "Serial : 0000df0c00004d4c\n",
70 HWCAP_NEON,
71 0,
72 true,
73 },
74 // Nexus 4 from https://crbug.com/341598#c43
75 {
76 "Processor : ARMv7 Processor rev 2 (v7l)\n"
77 "processor : 0\n"
78 "BogoMIPS : 13.53\n"
79 "\n"
80 "processor : 1\n"
81 "BogoMIPS : 13.53\n"
82 "\n"
83 "processor : 2\n"
84 "BogoMIPS : 13.53\n"
85 "\n"
86 "processor : 3\n"
87 "BogoMIPS : 13.53\n"
88 "\n"
89 "Features : swp half thumb fastmult vfp edsp neon vfpv3 tls "
90 "vfpv4 \n"
91 "CPU implementer : 0x51\n"
92 "CPU architecture: 7\n"
93 "CPU variant : 0x0\n"
94 "CPU part : 0x06f\n"
95 "CPU revision : 2\n"
96 "\n"
97 "Hardware : QCT APQ8064 MAKO\n"
98 "Revision : 000b\n"
99 "Serial : 0000000000000000\n",
100 HWCAP_NEON,
101 0,
102 false,
103 },
104 // Razr M from https://crbug.com/341598#c43
105 {
106 "Processor : ARMv7 Processor rev 4 (v7l)\n"
107 "processor : 0\n"
108 "BogoMIPS : 13.53\n"
109 "\n"
110 "Features : swp half thumb fastmult vfp edsp neon vfpv3 tls "
111 "vfpv4\n"
112 "CPU implementer : 0x51\n"
113 "CPU architecture: 7\n"
114 "CPU variant : 0x1\n"
115 "CPU part : 0x04d\n"
116 "CPU revision : 4\n"
117 "\n"
118 "Hardware : msm8960dt\n"
119 "Revision : 82a0\n"
120 "Serial : 0001000201fe37a5\n",
121 HWCAP_NEON,
122 0,
123 false,
124 },
125 // Pixel 2 (truncated slightly)
126 {
127 "Processor : AArch64 Processor rev 1 (aarch64)\n"
128 "processor : 0\n"
129 "BogoMIPS : 38.00\n"
130 "Features : fp asimd evtstrm aes pmull sha1 sha2 crc32\n"
131 "CPU implementer : 0x51\n"
132 "CPU architecture: 8\n"
133 "CPU variant : 0xa\n"
134 "CPU part : 0x801\n"
135 "CPU revision : 4\n"
136 "\n"
137 "processor : 1\n"
138 "BogoMIPS : 38.00\n"
139 "Features : fp asimd evtstrm aes pmull sha1 sha2 crc32\n"
140 "CPU implementer : 0x51\n"
141 "CPU architecture: 8\n"
142 "CPU variant : 0xa\n"
143 "CPU part : 0x801\n"
144 "CPU revision : 4\n"
145 "\n"
146 "processor : 2\n"
147 "BogoMIPS : 38.00\n"
148 "Features : fp asimd evtstrm aes pmull sha1 sha2 crc32\n"
149 "CPU implementer : 0x51\n"
150 "CPU architecture: 8\n"
151 "CPU variant : 0xa\n"
152 "CPU part : 0x801\n"
153 "CPU revision : 4\n"
154 "\n"
155 "processor : 3\n"
156 "BogoMIPS : 38.00\n"
157 "Features : fp asimd evtstrm aes pmull sha1 sha2 crc32\n"
158 "CPU implementer : 0x51\n"
159 "CPU architecture: 8\n"
160 "CPU variant : 0xa\n"
161 "CPU part : 0x801\n"
162 "CPU revision : 4\n"
163 // (Extra processors omitted.)
164 "\n"
165 "Hardware : Qualcomm Technologies, Inc MSM8998\n",
166 HWCAP_NEON, // CPU architecture 8 implies NEON.
167 HWCAP2_AES | HWCAP2_PMULL | HWCAP2_SHA1 | HWCAP2_SHA2,
168 false,
169 },
170 // Nexus 4 from
171 // Garbage should be tolerated.
172 {
173 "Blah blah blah this is definitely an ARM CPU",
174 0,
175 0,
176 false,
177 },
178 // A hypothetical ARMv8 CPU without crc32 (and thus no trailing space
179 // after the last crypto entry).
180 {
181 "Features : aes pmull sha1 sha2\n"
182 "CPU architecture: 8\n",
183 HWCAP_NEON,
184 HWCAP2_AES | HWCAP2_PMULL | HWCAP2_SHA1 | HWCAP2_SHA2,
185 false,
186 },
187 // Various combinations of ARMv8 flags.
188 {
189 "Features : aes sha1 sha2\n"
190 "CPU architecture: 8\n",
191 HWCAP_NEON,
192 HWCAP2_AES | HWCAP2_SHA1 | HWCAP2_SHA2,
193 false,
194 },
195 {
196 "Features : pmull sha2\n"
197 "CPU architecture: 8\n",
198 HWCAP_NEON,
199 HWCAP2_PMULL | HWCAP2_SHA2,
200 false,
201 },
202 {
203 "Features : aes aes aes not_aes aes aes \n"
204 "CPU architecture: 8\n",
205 HWCAP_NEON,
206 HWCAP2_AES,
207 false,
208 },
209 {
210 "Features : \n"
211 "CPU architecture: 8\n",
212 HWCAP_NEON,
213 0,
214 false,
215 },
216 {
217 "Features : nothing\n"
218 "CPU architecture: 8\n",
219 HWCAP_NEON,
220 0,
221 false,
222 },
223 };
224
225 for (const auto &t : kTests) {
226 SCOPED_TRACE(t.cpuinfo);
227 STRING_PIECE sp = {t.cpuinfo, strlen(t.cpuinfo)};
228 EXPECT_EQ(t.hwcap, crypto_get_arm_hwcap_from_cpuinfo(&sp));
229 EXPECT_EQ(t.hwcap2, crypto_get_arm_hwcap2_from_cpuinfo(&sp));
230 EXPECT_EQ(t.broken_neon ? 1 : 0, crypto_cpuinfo_has_broken_neon(&sp));
231 }
232 }
233