tests/test-hmp.c

   1 /*
   2  * Test HMP commands.
   3  *
   4  * Copyright (c) 2017 Red Hat Inc.
   5  *
   6  * Author:
   7  *    Thomas Huth <thuth@redhat.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2
  10  * or later. See the COPYING file in the top-level directory.
  11  *
  12  * This test calls some HMP commands for all machines that the current
  13  * QEMU binary provides, to check whether they terminate successfully
  14  * (i.e. do not crash QEMU).
  15  */
  16
  17 #include "qemu/osdep.h"
  18 #include "libqtest.h"
  19
  20 static int verbose;
  21
  22 static const char *hmp_cmds[] = {
  23     "announce_self",
  24     "boot_set ndc",
  25     "chardev-add null,id=testchardev1",
  26     "chardev-send-break testchardev1",
  27     "chardev-change testchardev1 ringbuf",
  28     "chardev-remove testchardev1",
  29     "commit all",
  30     "cpu-add 1",
  31     "cpu 0",
  32     "device_add ?",
  33     "device_add usb-mouse,id=mouse1",
  34     "mouse_button 7",
  35     "mouse_move 10 10",
  36     "mouse_button 0",
  37     "device_del mouse1",
  38     "dump-guest-memory /dev/null 0 4096",
  39     "dump-guest-memory /dev/null",
  40     "gdbserver",
  41     "hostfwd_add tcp::43210-:43210",
  42     "hostfwd_remove tcp::43210-:43210",
  43     "i /w 0",
  44     "log all",
  45     "log none",
  46     "memsave 0 4096 \"/dev/null\"",
  47     "migrate_set_cache_size 1",
  48     "migrate_set_downtime 1",
  49     "migrate_set_speed 1",
  50     "netdev_add user,id=net1",
  51     "set_link net1 off",
  52     "set_link net1 on",
  53     "netdev_del net1",
  54     "nmi",
  55     "o /w 0 0x1234",
  56     "object_add memory-backend-ram,id=mem1,size=256M",
  57     "object_del mem1",
  58     "pmemsave 0 4096 \"/dev/null\"",
  59     "p $pc + 8",
  60     "qom-list /",
  61     "qom-set /machine initrd test",
  62     "screendump /dev/null",
  63     "sendkey x",
  64     "singlestep on",
  65     "wavcapture /dev/null",
  66     "stopcapture 0",
  67     "sum 0 512",
  68     "x /8i 0x100",
  69     "xp /16x 0",
  70     NULL
  71 };
  72
  73 /* Run through the list of pre-defined commands */
  74 static void test_commands(void)
  75 {
  76     char *response;
  77     int i;
  78
  79     for (i = 0; hmp_cmds[i] != NULL; i++) {
  80         response = hmp("%s", hmp_cmds[i]);
  81         if (verbose) {
  82             fprintf(stderr,
  83                     "\texecute HMP command: %s\n"
  84                     "\tresult             : %s\n",
  85                     hmp_cmds[i], response);
  86         }
  87         g_free(response);
  88     }
  89
  90 }
  91
  92 /* Run through all info commands and call them blindly (without arguments) */
  93 static void test_info_commands(void)
  94 {
  95     char *resp, *info, *info_buf, *endp;
  96
  97     info_buf = info = hmp("help info");
  98
  99     while (*info) {
 100         /* Extract the info command, ignore parameters and description */
 101         g_assert(strncmp(info, "info ", 5) == 0);
 102         endp = strchr(&info[5], ' ');
 103         g_assert(endp != NULL);
 104         *endp = '\0';
 105         /* Now run the info command */
 106         if (verbose) {
 107             fprintf(stderr, "\t%s\n", info);
 108         }
 109         resp = hmp("%s", info);
 110         g_free(resp);
 111         /* And move forward to the next line */
 112         info = strchr(endp + 1, '\n');
 113         if (!info) {
 114             break;
 115         }
 116         info += 1;
 117     }
 118
 119     g_free(info_buf);
 120 }
 121
 122 static void test_machine(gconstpointer data)
 123 {
 124     const char *machine = data;
 125     char *args;
 126
 127     args = g_strdup_printf("-S -M %s", machine);
 128     qtest_start(args);
 129
 130     test_info_commands();
 131     test_commands();
 132
 133     qtest_end();
 134     g_free(args);
 135     g_free((void *)data);
 136 }
 137
 138 static void add_machine_test_case(const char *mname)
 139 {
 140     char *path;
 141
 142     /* Ignore blacklisted machines that have known problems */
 143     if (!strcmp("xenfv", mname) || !strcmp("xenpv", mname)) {
 144         return;
 145     }
 146
 147     path = g_strdup_printf("hmp/%s", mname);
 148     qtest_add_data_func(path, g_strdup(mname), test_machine);
 149     g_free(path);
 150 }
 151
 152 int main(int argc, char **argv)
 153 {
 154     char *v_env = getenv("V");
 155
 156     if (v_env && *v_env >= '2') {
 157         verbose = true;
 158     }
 159
 160     g_test_init(&argc, &argv, NULL);
 161
 162     qtest_cb_for_every_machine(add_machine_test_case, g_test_quick());
 163
 164     /* as none machine has no memory by default, add a test case with memory */
 165     qtest_add_data_func("hmp/none+2MB", g_strdup("none -m 2"), test_machine);
 166
 167     return g_test_run();
 168 }