tests/boot-serial-test.c

   1 /*
   2  * Test serial output of some machines.
   3  *
   4  * Copyright 2016 Thomas Huth, Red Hat Inc.
   5  *
   6  * This work is licensed under the terms of the GNU GPL, version 2
   7  * or later. See the COPYING file in the top-level directory.
   8  *
   9  * This test is used to check that the serial output of the firmware
  10  * (that we provide for some machines) contains an expected string.
  11  * Thus we check that the firmware still boots at least to a certain
  12  * point and so we know that the machine is not completely broken.
  13  */
  14
  15 #include "qemu/osdep.h"
  16 #include "libqtest.h"
  17
  18 typedef struct testdef {
  19     const char *arch;       /* Target architecture */
  20     const char *machine;    /* Name of the machine */
  21     const char *extra;      /* Additional parameters */
  22     const char *expect;     /* Expected string in the serial output */
  23 } testdef_t;
  24
  25 static testdef_t tests[] = {
  26     { "alpha", "clipper", "", "PCI:" },
  27     { "ppc", "ppce500", "", "U-Boot" },
  28     { "ppc", "prep", "", "Open Hack'Ware BIOS" },
  29     { "ppc64", "ppce500", "", "U-Boot" },
  30     { "ppc64", "prep", "", "Open Hack'Ware BIOS" },
  31     { "ppc64", "pseries", "", "Open Firmware" },
  32     { "i386", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
  33     { "i386", "pc", "-device sga", "SGABIOS" },
  34     { "i386", "q35", "-device sga", "SGABIOS" },
  35     { "x86_64", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
  36     { "x86_64", "q35", "-device sga", "SGABIOS" },
  37     { "s390x", "s390-ccw-virtio",
  38       "-nodefaults -device sclpconsole,chardev=serial0", "virtio device" },
  39     { NULL }
  40 };
  41
  42 static void check_guest_output(const testdef_t *test, int fd)
  43 {
  44     bool output_ok = false;
  45     int i, nbr, pos = 0;
  46     char ch;
  47
  48     /* Poll serial output... Wait at most 60 seconds */
  49     for (i = 0; i < 6000; ++i) {
  50         while ((nbr = read(fd, &ch, 1)) == 1) {
  51             if (ch == test->expect[pos]) {
  52                 pos += 1;
  53                 if (test->expect[pos] == '\0') {
  54                     /* We've reached the end of the expected string! */
  55                     output_ok = true;
  56                     goto done;
  57                 }
  58             } else {
  59                 pos = 0;
  60             }
  61         }
  62         g_assert(nbr >= 0);
  63         g_usleep(10000);
  64     }
  65
  66 done:
  67     g_assert(output_ok);
  68 }
  69
  70 static void test_machine(const void *data)
  71 {
  72     const testdef_t *test = data;
  73     char *args;
  74     char tmpname[] = "/tmp/qtest-boot-serial-XXXXXX";
  75     int fd;
  76
  77     fd = mkstemp(tmpname);
  78     g_assert(fd != -1);
  79
  80     args = g_strdup_printf("-M %s,accel=tcg -chardev file,id=serial0,path=%s"
  81                            " -serial chardev:serial0 %s", test->machine,
  82                            tmpname, test->extra);
  83
  84     qtest_start(args);
  85     unlink(tmpname);
  86
  87     check_guest_output(test, fd);
  88     qtest_quit(global_qtest);
  89
  90     g_free(args);
  91     close(fd);
  92 }
  93
  94 int main(int argc, char *argv[])
  95 {
  96     const char *arch = qtest_get_arch();
  97     int i;
  98
  99     g_test_init(&argc, &argv, NULL);
 100
 101     for (i = 0; tests[i].arch != NULL; i++) {
 102         if (strcmp(arch, tests[i].arch) == 0) {
 103             char *name = g_strdup_printf("boot-serial/%s", tests[i].machine);
 104             qtest_add_data_func(name, &tests[i], test_machine);
 105             g_free(name);
 106         }
 107     }
 108
 109     return g_test_run();
 110 }