xref: /qemu/tests/qtest/cpu-plug-test.c (revision abff1abf)
1 /*
2  * QTest testcase for CPU plugging
3  *
4  * Copyright (c) 2015 SUSE Linux GmbH
5  *
6  * This work is licensed under the terms of the GNU GPL, version 2 or later.
7  * See the COPYING file in the top-level directory.
8  */
9 
10 #include "qemu/osdep.h"
11 
12 #include "qemu-common.h"
13 #include "libqtest-single.h"
14 #include "qapi/qmp/qdict.h"
15 #include "qapi/qmp/qlist.h"
16 
17 struct PlugTestData {
18     char *machine;
19     const char *cpu_model;
20     char *device_model;
21     unsigned sockets;
22     unsigned cores;
23     unsigned threads;
24     unsigned maxcpus;
25 };
26 typedef struct PlugTestData PlugTestData;
27 
28 static void test_plug_with_cpu_add(gconstpointer data)
29 {
30     const PlugTestData *s = data;
31     char *args;
32     QDict *response;
33     unsigned int i;
34 
35     args = g_strdup_printf("-machine %s -cpu %s "
36                            "-smp 1,sockets=%u,cores=%u,threads=%u,maxcpus=%u",
37                            s->machine, s->cpu_model,
38                            s->sockets, s->cores, s->threads, s->maxcpus);
39     qtest_start(args);
40 
41     for (i = 1; i < s->maxcpus; i++) {
42         response = qmp("{ 'execute': 'cpu-add',"
43                        "  'arguments': { 'id': %d } }", i);
44         g_assert(response);
45         g_assert(!qdict_haskey(response, "error"));
46         qobject_unref(response);
47     }
48 
49     qtest_end();
50     g_free(args);
51 }
52 
53 static void test_plug_without_cpu_add(gconstpointer data)
54 {
55     const PlugTestData *s = data;
56     char *args;
57     QDict *response;
58 
59     args = g_strdup_printf("-machine %s -cpu %s "
60                            "-smp 1,sockets=%u,cores=%u,threads=%u,maxcpus=%u",
61                            s->machine, s->cpu_model,
62                            s->sockets, s->cores, s->threads, s->maxcpus);
63     qtest_start(args);
64 
65     response = qmp("{ 'execute': 'cpu-add',"
66                    "  'arguments': { 'id': %d } }",
67                    s->sockets * s->cores * s->threads);
68     g_assert(response);
69     g_assert(qdict_haskey(response, "error"));
70     qobject_unref(response);
71 
72     qtest_end();
73     g_free(args);
74 }
75 
76 static void test_plug_with_device_add(gconstpointer data)
77 {
78     const PlugTestData *td = data;
79     char *args;
80     QTestState *qts;
81     QDict *resp;
82     QList *cpus;
83     QObject *e;
84     int hotplugged = 0;
85 
86     args = g_strdup_printf("-machine %s -cpu %s "
87                            "-smp 1,sockets=%u,cores=%u,threads=%u,maxcpus=%u",
88                            td->machine, td->cpu_model,
89                            td->sockets, td->cores, td->threads, td->maxcpus);
90     qts = qtest_init(args);
91 
92     resp = qtest_qmp(qts, "{ 'execute': 'query-hotpluggable-cpus'}");
93     g_assert(qdict_haskey(resp, "return"));
94     cpus = qdict_get_qlist(resp, "return");
95     g_assert(cpus);
96 
97     while ((e = qlist_pop(cpus))) {
98         const QDict *cpu, *props;
99 
100         cpu = qobject_to(QDict, e);
101         if (qdict_haskey(cpu, "qom-path")) {
102             qobject_unref(e);
103             continue;
104         }
105 
106         g_assert(qdict_haskey(cpu, "props"));
107         props = qdict_get_qdict(cpu, "props");
108 
109         qtest_qmp_device_add_qdict(qts, td->device_model, props);
110         hotplugged++;
111         qobject_unref(e);
112     }
113 
114     /* make sure that there were hotplugged CPUs */
115     g_assert(hotplugged);
116     qobject_unref(resp);
117     qtest_quit(qts);
118     g_free(args);
119 }
120 
121 static void test_data_free(gpointer data)
122 {
123     PlugTestData *pc = data;
124 
125     g_free(pc->machine);
126     g_free(pc->device_model);
127     g_free(pc);
128 }
129 
130 static void add_pc_test_case(const char *mname)
131 {
132     char *path;
133     PlugTestData *data;
134 
135     if (!g_str_has_prefix(mname, "pc-")) {
136         return;
137     }
138     data = g_new(PlugTestData, 1);
139     data->machine = g_strdup(mname);
140     data->cpu_model = "Haswell"; /* 1.3+ theoretically */
141     data->device_model = g_strdup_printf("%s-%s-cpu", data->cpu_model,
142                                          qtest_get_arch());
143     data->sockets = 1;
144     data->cores = 3;
145     data->threads = 2;
146     data->maxcpus = data->sockets * data->cores * data->threads;
147     if (g_str_has_suffix(mname, "-1.4") ||
148         (strcmp(mname, "pc-1.3") == 0) ||
149         (strcmp(mname, "pc-1.2") == 0) ||
150         (strcmp(mname, "pc-1.1") == 0) ||
151         (strcmp(mname, "pc-1.0") == 0)) {
152         path = g_strdup_printf("cpu-plug/%s/init/%ux%ux%u&maxcpus=%u",
153                                mname, data->sockets, data->cores,
154                                data->threads, data->maxcpus);
155         qtest_add_data_func_full(path, data, test_plug_without_cpu_add,
156                                  test_data_free);
157         g_free(path);
158     } else {
159         PlugTestData *data2 = g_memdup(data, sizeof(PlugTestData));
160 
161         data2->machine = g_strdup(data->machine);
162         data2->device_model = g_strdup(data->device_model);
163 
164         path = g_strdup_printf("cpu-plug/%s/cpu-add/%ux%ux%u&maxcpus=%u",
165                                mname, data->sockets, data->cores,
166                                data->threads, data->maxcpus);
167         qtest_add_data_func_full(path, data, test_plug_with_cpu_add,
168                                  test_data_free);
169         g_free(path);
170         path = g_strdup_printf("cpu-plug/%s/device-add/%ux%ux%u&maxcpus=%u",
171                                mname, data2->sockets, data2->cores,
172                                data2->threads, data2->maxcpus);
173         qtest_add_data_func_full(path, data2, test_plug_with_device_add,
174                                  test_data_free);
175         g_free(path);
176     }
177 }
178 
179 static void add_pseries_test_case(const char *mname)
180 {
181     char *path;
182     PlugTestData *data;
183 
184     if (!g_str_has_prefix(mname, "pseries-") ||
185         (g_str_has_prefix(mname, "pseries-2.") && atoi(&mname[10]) < 7)) {
186         return;
187     }
188     data = g_new(PlugTestData, 1);
189     data->machine = g_strdup(mname);
190     data->cpu_model = "power8_v2.0";
191     data->device_model = g_strdup("power8_v2.0-spapr-cpu-core");
192     data->sockets = 2;
193     data->cores = 3;
194     data->threads = 1;
195     data->maxcpus = data->sockets * data->cores * data->threads;
196 
197     path = g_strdup_printf("cpu-plug/%s/device-add/%ux%ux%u&maxcpus=%u",
198                            mname, data->sockets, data->cores,
199                            data->threads, data->maxcpus);
200     qtest_add_data_func_full(path, data, test_plug_with_device_add,
201                              test_data_free);
202     g_free(path);
203 }
204 
205 static void add_s390x_test_case(const char *mname)
206 {
207     char *path;
208     PlugTestData *data, *data2;
209 
210     if (!g_str_has_prefix(mname, "s390-ccw-virtio-")) {
211         return;
212     }
213 
214     data = g_new(PlugTestData, 1);
215     data->machine = g_strdup(mname);
216     data->cpu_model = "qemu";
217     data->device_model = g_strdup("qemu-s390x-cpu");
218     data->sockets = 1;
219     data->cores = 3;
220     data->threads = 1;
221     data->maxcpus = data->sockets * data->cores * data->threads;
222 
223     data2 = g_memdup(data, sizeof(PlugTestData));
224     data2->machine = g_strdup(data->machine);
225     data2->device_model = g_strdup(data->device_model);
226 
227     path = g_strdup_printf("cpu-plug/%s/cpu-add/%ux%ux%u&maxcpus=%u",
228                            mname, data->sockets, data->cores,
229                            data->threads, data->maxcpus);
230     qtest_add_data_func_full(path, data, test_plug_with_cpu_add,
231                              test_data_free);
232     g_free(path);
233 
234     path = g_strdup_printf("cpu-plug/%s/device-add/%ux%ux%u&maxcpus=%u",
235                            mname, data2->sockets, data2->cores,
236                            data2->threads, data2->maxcpus);
237     qtest_add_data_func_full(path, data2, test_plug_with_device_add,
238                              test_data_free);
239     g_free(path);
240 }
241 
242 int main(int argc, char **argv)
243 {
244     const char *arch = qtest_get_arch();
245 
246     g_test_init(&argc, &argv, NULL);
247 
248     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
249         qtest_cb_for_every_machine(add_pc_test_case, g_test_quick());
250     } else if (g_str_equal(arch, "ppc64")) {
251         qtest_cb_for_every_machine(add_pseries_test_case, g_test_quick());
252     } else if (g_str_equal(arch, "s390x")) {
253         qtest_cb_for_every_machine(add_s390x_test_case, g_test_quick());
254     }
255 
256     return g_test_run();
257 }
258