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     { "ppc64", "powernv", "-cpu POWER8", "SkiBoot" },
  33     { "i386", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
  34     { "i386", "pc", "-device sga", "SGABIOS" },
  35     { "i386", "q35", "-device sga", "SGABIOS" },
  36     { "x86_64", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
  37     { "x86_64", "q35", "-device sga", "SGABIOS" },
  38     { "s390x", "s390-ccw-virtio",
  39       "-nodefaults -device sclpconsole,chardev=serial0", "virtio device" },
  40     { NULL }
  41 };
  42
  43 static void check_guest_output(const testdef_t *test, int fd)
  44 {
  45     bool output_ok = false;
  46     int i, nbr, pos = 0;
  47     char ch;
  48
  49     /* Poll serial output... Wait at most 60 seconds */
  50     for (i = 0; i < 6000; ++i) {
  51         while ((nbr = read(fd, &ch, 1)) == 1) {
  52             if (ch == test->expect[pos]) {
  53                 pos += 1;
  54                 if (test->expect[pos] == '\0') {
  55                     /* We've reached the end of the expected string! */
  56                     output_ok = true;
  57                     goto done;
  58                 }
  59             } else {
  60                 pos = 0;
  61             }
  62         }
  63         g_assert(nbr >= 0);
  64         g_usleep(10000);
  65     }
  66
  67 done:
  68     g_assert(output_ok);
  69 }
  70
  71 static void test_machine(const void *data)
  72 {
  73     const testdef_t *test = data;
  74     char tmpname[] = "/tmp/qtest-boot-serial-XXXXXX";
  75     int fd;
  76
  77     fd = mkstemp(tmpname);
  78     g_assert(fd != -1);
  79
  80     /*
  81      * Make sure that this test uses tcg if available: It is used as a
  82      * fast-enough smoketest for that.
  83      */
  84     global_qtest = qtest_startf("-M %s,accel=tcg:kvm "
  85                                 "-chardev file,id=serial0,path=%s "
  86                                 "-no-shutdown -serial chardev:serial0 %s",
  87                                 test->machine, tmpname, test->extra);
  88     unlink(tmpname);
  89
  90     check_guest_output(test, fd);
  91     qtest_quit(global_qtest);
  92
  93     close(fd);
  94 }
  95
  96 int main(int argc, char *argv[])
  97 {
  98     const char *arch = qtest_get_arch();
  99     int i;
 100
 101     g_test_init(&argc, &argv, NULL);
 102
 103     for (i = 0; tests[i].arch != NULL; i++) {
 104         if (strcmp(arch, tests[i].arch) == 0) {
 105             char *name = g_strdup_printf("boot-serial/%s", tests[i].machine);
 106             qtest_add_data_func(name, &tests[i], test_machine);
 107             g_free(name);
 108         }
 109     }
 110
 111     return g_test_run();
 112 }