LXR qemu/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
  18typedef 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
  25static 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
  43static 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
  67done:
  68    g_assert(output_ok);
  69}
  70
  71static 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    const char *machine_props;
  77
  78    fd = mkstemp(tmpname);
  79    g_assert(fd != -1);
  80
  81    machine_props = strcmp(test->machine, "pseries") == 0 ? ",cap-htm=off" : "";
  82
  83    /*
  84     * Make sure that this test uses tcg if available: It is used as a
  85     * fast-enough smoketest for that.
  86     */
  87    global_qtest = qtest_startf("-M %s%s,accel=tcg:kvm "
  88                                "-chardev file,id=serial0,path=%s "
  89                                "-no-shutdown -serial chardev:serial0 %s",
  90                                test->machine, machine_props, tmpname,
  91                                test->extra);
  92    unlink(tmpname);
  93
  94    check_guest_output(test, fd);
  95    qtest_quit(global_qtest);
  96
  97    close(fd);
  98}
  99
 100int main(int argc, char *argv[])
 101{
 102    const char *arch = qtest_get_arch();
 103    int i;
 104
 105    g_test_init(&argc, &argv, NULL);
 106
 107    for (i = 0; tests[i].arch != NULL; i++) {
 108        if (strcmp(arch, tests[i].arch) == 0) {
 109            char *name = g_strdup_printf("boot-serial/%s", tests[i].machine);
 110            qtest_add_data_func(name, &tests[i], test_machine);
 111            g_free(name);
 112        }
 113    }
 114
 115    return g_test_run();
 116}
 117