Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
[qemu.git] / tests / test-x86-cpuid.c
1 /*
2 * Test code for x86 CPUID and Topology functions
3 *
4 * Copyright (c) 2012 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26
27 #include "hw/i386/topology.h"
28
29 static void test_topo_bits(void)
30 {
31 /* simple tests for 1 thread per core, 1 core per die, 1 die per package */
32 g_assert_cmpuint(apicid_smt_width(1, 1, 1), ==, 0);
33 g_assert_cmpuint(apicid_core_width(1, 1, 1), ==, 0);
34 g_assert_cmpuint(apicid_die_width(1, 1, 1), ==, 0);
35
36 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 1, 0), ==, 0);
37 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 1, 1), ==, 1);
38 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 1, 2), ==, 2);
39 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 1, 3), ==, 3);
40
41
42 /* Test field width calculation for multiple values
43 */
44 g_assert_cmpuint(apicid_smt_width(1, 1, 2), ==, 1);
45 g_assert_cmpuint(apicid_smt_width(1, 1, 3), ==, 2);
46 g_assert_cmpuint(apicid_smt_width(1, 1, 4), ==, 2);
47
48 g_assert_cmpuint(apicid_smt_width(1, 1, 14), ==, 4);
49 g_assert_cmpuint(apicid_smt_width(1, 1, 15), ==, 4);
50 g_assert_cmpuint(apicid_smt_width(1, 1, 16), ==, 4);
51 g_assert_cmpuint(apicid_smt_width(1, 1, 17), ==, 5);
52
53
54 g_assert_cmpuint(apicid_core_width(1, 30, 2), ==, 5);
55 g_assert_cmpuint(apicid_core_width(1, 31, 2), ==, 5);
56 g_assert_cmpuint(apicid_core_width(1, 32, 2), ==, 5);
57 g_assert_cmpuint(apicid_core_width(1, 33, 2), ==, 6);
58
59 g_assert_cmpuint(apicid_die_width(1, 30, 2), ==, 0);
60 g_assert_cmpuint(apicid_die_width(2, 30, 2), ==, 1);
61 g_assert_cmpuint(apicid_die_width(3, 30, 2), ==, 2);
62 g_assert_cmpuint(apicid_die_width(4, 30, 2), ==, 2);
63
64 /* build a weird topology and see if IDs are calculated correctly
65 */
66
67 /* This will use 2 bits for thread ID and 3 bits for core ID
68 */
69 g_assert_cmpuint(apicid_smt_width(1, 6, 3), ==, 2);
70 g_assert_cmpuint(apicid_core_offset(1, 6, 3), ==, 2);
71 g_assert_cmpuint(apicid_die_offset(1, 6, 3), ==, 5);
72 g_assert_cmpuint(apicid_pkg_offset(1, 6, 3), ==, 5);
73
74 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 0), ==, 0);
75 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 1), ==, 1);
76 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 2), ==, 2);
77
78 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 1 * 3 + 0), ==,
79 (1 << 2) | 0);
80 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 1 * 3 + 1), ==,
81 (1 << 2) | 1);
82 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 1 * 3 + 2), ==,
83 (1 << 2) | 2);
84
85 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 2 * 3 + 0), ==,
86 (2 << 2) | 0);
87 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 2 * 3 + 1), ==,
88 (2 << 2) | 1);
89 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 2 * 3 + 2), ==,
90 (2 << 2) | 2);
91
92 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 5 * 3 + 0), ==,
93 (5 << 2) | 0);
94 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 5 * 3 + 1), ==,
95 (5 << 2) | 1);
96 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 5 * 3 + 2), ==,
97 (5 << 2) | 2);
98
99 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3,
100 1 * 6 * 3 + 0 * 3 + 0), ==, (1 << 5));
101 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3,
102 1 * 6 * 3 + 1 * 3 + 1), ==, (1 << 5) | (1 << 2) | 1);
103 g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3,
104 3 * 6 * 3 + 5 * 3 + 2), ==, (3 << 5) | (5 << 2) | 2);
105 }
106
107 int main(int argc, char **argv)
108 {
109 g_test_init(&argc, &argv, NULL);
110
111 g_test_add_func("/cpuid/topology/basic", test_topo_bits);
112
113 g_test_run();
114
115 return 0;
116 }