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     "drive_add ignored format=help",
  35     "mouse_button 7",
  36     "mouse_move 10 10",
  37     "mouse_button 0",
  38     "device_del mouse1",
  39     "dump-guest-memory /dev/null 0 4096",
  40     "dump-guest-memory /dev/null",
  41     "gdbserver",
  42     "gva2gpa 0",
  43     "hostfwd_add tcp::43210-:43210",
  44     "hostfwd_remove tcp::43210-:43210",
  45     "i /w 0",
  46     "log all",
  47     "log none",
  48     "memsave 0 4096 \"/dev/null\"",
  49     "migrate_set_cache_size 1",
  50     "migrate_set_downtime 1",
  51     "migrate_set_speed 1",
  52     "netdev_add user,id=net1",
  53     "set_link net1 off",
  54     "set_link net1 on",
  55     "netdev_del net1",
  56     "nmi",
  57     "o /w 0 0x1234",
  58     "object_add memory-backend-ram,id=mem1,size=256M",
  59     "object_del mem1",
  60     "pmemsave 0 4096 \"/dev/null\"",
  61     "p $pc + 8",
  62     "qom-list /",
  63     "qom-set /machine initrd test",
  64     "screendump /dev/null",
  65     "sendkey x",
  66     "singlestep on",
  67     "wavcapture /dev/null",
  68     "stopcapture 0",
  69     "sum 0 512",
  70     "x /8i 0x100",
  71     "xp /16x 0",
  72     NULL
  73 };
  74
  75 /* Run through the list of pre-defined commands */
  76 static void test_commands(void)
  77 {
  78     char *response;
  79     int i;
  80
  81     for (i = 0; hmp_cmds[i] != NULL; i++) {
  82         response = hmp("%s", hmp_cmds[i]);
  83         if (verbose) {
  84             fprintf(stderr,
  85                     "\texecute HMP command: %s\n"
  86                     "\tresult             : %s\n",
  87                     hmp_cmds[i], response);
  88         }
  89         g_free(response);
  90     }
  91
  92 }
  93
  94 /* Run through all info commands and call them blindly (without arguments) */
  95 static void test_info_commands(void)
  96 {
  97     char *resp, *info, *info_buf, *endp;
  98
  99     info_buf = info = hmp("help info");
 100
 101     while (*info) {
 102         /* Extract the info command, ignore parameters and description */
 103         g_assert(strncmp(info, "info ", 5) == 0);
 104         endp = strchr(&info[5], ' ');
 105         g_assert(endp != NULL);
 106         *endp = '\0';
 107         /* Now run the info command */
 108         if (verbose) {
 109             fprintf(stderr, "\t%s\n", info);
 110         }
 111         resp = hmp("%s", info);
 112         g_free(resp);
 113         /* And move forward to the next line */
 114         info = strchr(endp + 1, '\n');
 115         if (!info) {
 116             break;
 117         }
 118         info += 1;
 119     }
 120
 121     g_free(info_buf);
 122 }
 123
 124 static void test_machine(gconstpointer data)
 125 {
 126     const char *machine = data;
 127     char *args;
 128
 129     args = g_strdup_printf("-S -M %s", machine);
 130     qtest_start(args);
 131
 132     test_info_commands();
 133     test_commands();
 134
 135     qtest_end();
 136     g_free(args);
 137     g_free((void *)data);
 138 }
 139
 140 static void add_machine_test_case(const char *mname)
 141 {
 142     char *path;
 143
 144     /* Ignore blacklisted machines that have known problems */
 145     if (!strcmp("xenfv", mname) || !strcmp("xenpv", mname)) {
 146         return;
 147     }
 148
 149     path = g_strdup_printf("hmp/%s", mname);
 150     qtest_add_data_func(path, g_strdup(mname), test_machine);
 151     g_free(path);
 152 }
 153
 154 int main(int argc, char **argv)
 155 {
 156     char *v_env = getenv("V");
 157
 158     if (v_env && *v_env >= '2') {
 159         verbose = true;
 160     }
 161
 162     g_test_init(&argc, &argv, NULL);
 163
 164     qtest_cb_for_every_machine(add_machine_test_case, g_test_quick());
 165
 166     /* as none machine has no memory by default, add a test case with memory */
 167     qtest_add_data_func("hmp/none+2MB", g_strdup("none -m 2"), test_machine);
 168
 169     return g_test_run();
 170 }