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) or some small mini-kernels that
  11  * we provide here contains an expected string. Thus we check that the
  12  * firmware/kernel still boots at least to a certain point and so we
  13  * know that the machine is not completely broken.
  14  */
  15
  16 #include "qemu/osdep.h"
  17 #include "libqtest.h"
  18
  19 static const uint8_t kernel_mcf5208[] = {
  20     0x41, 0xf9, 0xfc, 0x06, 0x00, 0x00,     /* lea 0xfc060000,%a0 */
  21     0x10, 0x3c, 0x00, 0x54,                 /* move.b #'T',%d0 */
  22     0x11, 0x7c, 0x00, 0x04, 0x00, 0x08,     /* move.b #4,8(%a0)     Enable TX */
  23     0x11, 0x40, 0x00, 0x0c,                 /* move.b %d0,12(%a0)   Print 'T' */
  24     0x60, 0xfa                              /* bra.s  loop */
  25 };
  26
  27 static const uint8_t kernel_pls3adsp1800[] = {
  28     0xb0, 0x00, 0x84, 0x00,                 /* imm   0x8400 */
  29     0x30, 0x60, 0x00, 0x04,                 /* addik r3,r0,4 */
  30     0x30, 0x80, 0x00, 0x54,                 /* addik r4,r0,'T' */
  31     0xf0, 0x83, 0x00, 0x00,                 /* sbi   r4,r3,0 */
  32     0xb8, 0x00, 0xff, 0xfc                  /* bri   -4  loop */
  33 };
  34
  35 static const uint8_t kernel_plml605[] = {
  36     0xe0, 0x83, 0x00, 0xb0,                 /* imm   0x83e0 */
  37     0x00, 0x10, 0x60, 0x30,                 /* addik r3,r0,0x1000 */
  38     0x54, 0x00, 0x80, 0x30,                 /* addik r4,r0,'T' */
  39     0x00, 0x00, 0x83, 0xf0,                 /* sbi   r4,r3,0 */
  40     0xfc, 0xff, 0x00, 0xb8                  /* bri   -4  loop */
  41 };
  42
  43 typedef struct testdef {
  44     const char *arch;       /* Target architecture */
  45     const char *machine;    /* Name of the machine */
  46     const char *extra;      /* Additional parameters */
  47     const char *expect;     /* Expected string in the serial output */
  48     size_t codesize;        /* Size of the kernel or bios data */
  49     const uint8_t *kernel;  /* Set in case we use our own mini kernel */
  50     const uint8_t *bios;    /* Set in case we use our own mini bios */
  51 } testdef_t;
  52
  53 static testdef_t tests[] = {
  54     { "alpha", "clipper", "", "PCI:" },
  55     { "ppc", "ppce500", "", "U-Boot" },
  56     { "ppc", "prep", "", "Open Hack'Ware BIOS" },
  57     { "ppc64", "ppce500", "", "U-Boot" },
  58     { "ppc64", "prep", "", "Open Hack'Ware BIOS" },
  59     { "ppc64", "pseries", "", "Open Firmware" },
  60     { "ppc64", "powernv", "-cpu POWER8", "SkiBoot" },
  61     { "i386", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
  62     { "i386", "pc", "-device sga", "SGABIOS" },
  63     { "i386", "q35", "-device sga", "SGABIOS" },
  64     { "x86_64", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
  65     { "x86_64", "q35", "-device sga", "SGABIOS" },
  66     { "s390x", "s390-ccw-virtio",
  67       "-nodefaults -device sclpconsole,chardev=serial0", "virtio device" },
  68     { "m68k", "mcf5208evb", "", "TT", sizeof(kernel_mcf5208), kernel_mcf5208 },
  69     { "microblaze", "petalogix-s3adsp1800", "", "TT",
  70       sizeof(kernel_pls3adsp1800), kernel_pls3adsp1800 },
  71     { "microblazeel", "petalogix-ml605", "", "TT",
  72       sizeof(kernel_plml605), kernel_plml605 },
  73
  74     { NULL }
  75 };
  76
  77 static void check_guest_output(const testdef_t *test, int fd)
  78 {
  79     bool output_ok = false;
  80     int i, nbr, pos = 0, ccnt;
  81     char ch;
  82
  83     /* Poll serial output... Wait at most 60 seconds */
  84     for (i = 0; i < 6000; ++i) {
  85         ccnt = 0;
  86         while ((nbr = read(fd, &ch, 1)) == 1 && ccnt++ < 512) {
  87             if (ch == test->expect[pos]) {
  88                 pos += 1;
  89                 if (test->expect[pos] == '\0') {
  90                     /* We've reached the end of the expected string! */
  91                     output_ok = true;
  92                     goto done;
  93                 }
  94             } else {
  95                 pos = 0;
  96             }
  97         }
  98         g_assert(nbr >= 0);
  99         g_usleep(10000);
 100     }
 101
 102 done:
 103     g_assert(output_ok);
 104 }
 105
 106 static void test_machine(const void *data)
 107 {
 108     const testdef_t *test = data;
 109     char serialtmp[] = "/tmp/qtest-boot-serial-sXXXXXX";
 110     char codetmp[] = "/tmp/qtest-boot-serial-cXXXXXX";
 111     const char *codeparam = "";
 112     const uint8_t *code = NULL;
 113     int ser_fd;
 114
 115     ser_fd = mkstemp(serialtmp);
 116     g_assert(ser_fd != -1);
 117
 118     if (test->kernel) {
 119         code = test->kernel;
 120         codeparam = "-kernel";
 121     } else if (test->bios) {
 122         code = test->bios;
 123         codeparam = "-bios";
 124     }
 125
 126     if (code) {
 127         ssize_t wlen;
 128         int code_fd;
 129
 130         code_fd = mkstemp(codetmp);
 131         g_assert(code_fd != -1);
 132         wlen = write(code_fd, code, test->codesize);
 133         g_assert(wlen == test->codesize);
 134         close(code_fd);
 135     }
 136
 137     /*
 138      * Make sure that this test uses tcg if available: It is used as a
 139      * fast-enough smoketest for that.
 140      */
 141     global_qtest = qtest_startf("%s %s -M %s,accel=tcg:kvm "
 142                                 "-chardev file,id=serial0,path=%s "
 143                                 "-no-shutdown -serial chardev:serial0 %s",
 144                                 codeparam, code ? codetmp : "",
 145                                 test->machine, serialtmp, test->extra);
 146     unlink(serialtmp);
 147     if (code) {
 148         unlink(codetmp);
 149     }
 150
 151     check_guest_output(test, ser_fd);
 152     qtest_quit(global_qtest);
 153
 154     close(ser_fd);
 155 }
 156
 157 int main(int argc, char *argv[])
 158 {
 159     const char *arch = qtest_get_arch();
 160     int i;
 161
 162     g_test_init(&argc, &argv, NULL);
 163
 164     for (i = 0; tests[i].arch != NULL; i++) {
 165         if (strcmp(arch, tests[i].arch) == 0) {
 166             char *name = g_strdup_printf("boot-serial/%s", tests[i].machine);
 167             qtest_add_data_func(name, &tests[i], test_machine);
 168             g_free(name);
 169         }
 170     }
 171
 172     return g_test_run();
 173 }