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