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 static const uint8_t bios_moxiesim[] = {
  44     0x20, 0x10, 0x00, 0x00, 0x03, 0xf8,     /* ldi.s r1,0x3f8 */
  45     0x1b, 0x20, 0x00, 0x00, 0x00, 0x54,     /* ldi.b r2,'T' */
  46     0x1e, 0x12,                             /* st.b  r1,r2 */
  47     0x1a, 0x00, 0x00, 0x00, 0x10, 0x00      /* jmpa  0x1000 */
  48 };
  49
  50 static const uint8_t bios_raspi2[] = {
  51     0x08, 0x30, 0x9f, 0xe5,                 /* ldr   r3,[pc,#8]    Get base */
  52     0x54, 0x20, 0xa0, 0xe3,                 /* mov     r2,#'T' */
  53     0x00, 0x20, 0xc3, 0xe5,                 /* strb    r2,[r3] */
  54     0xfb, 0xff, 0xff, 0xea,                 /* b       loop */
  55     0x00, 0x10, 0x20, 0x3f,                 /* 0x3f201000 = UART0 base addr */
  56 };
  57
  58 static const uint8_t kernel_aarch64[] = {
  59     0x81, 0x0a, 0x80, 0x52,                 /* mov     w1, #0x54 */
  60     0x02, 0x20, 0xa1, 0xd2,                 /* mov     x2, #0x9000000 */
  61     0x41, 0x00, 0x00, 0x39,                 /* strb    w1, [x2] */
  62     0xfd, 0xff, 0xff, 0x17,                 /* b       -12 (loop) */
  63 };
  64
  65 typedef struct testdef {
  66     const char *arch;       /* Target architecture */
  67     const char *machine;    /* Name of the machine */
  68     const char *extra;      /* Additional parameters */
  69     const char *expect;     /* Expected string in the serial output */
  70     size_t codesize;        /* Size of the kernel or bios data */
  71     const uint8_t *kernel;  /* Set in case we use our own mini kernel */
  72     const uint8_t *bios;    /* Set in case we use our own mini bios */
  73 } testdef_t;
  74
  75 static testdef_t tests[] = {
  76     { "alpha", "clipper", "", "PCI:" },
  77     { "ppc", "ppce500", "", "U-Boot" },
  78     { "ppc", "prep", "", "Open Hack'Ware BIOS" },
  79     { "ppc", "g3beige", "", "PowerPC,750" },
  80     { "ppc", "mac99", "", "PowerPC,G4" },
  81     { "ppc64", "ppce500", "", "U-Boot" },
  82     { "ppc64", "prep", "", "Open Hack'Ware BIOS" },
  83     { "ppc64", "mac99", "", "PowerPC,970FX" },
  84     { "ppc64", "pseries", "", "Open Firmware" },
  85     { "ppc64", "powernv", "-cpu POWER8", "OPAL" },
  86     { "i386", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
  87     { "i386", "pc", "-device sga", "SGABIOS" },
  88     { "i386", "q35", "-device sga", "SGABIOS" },
  89     { "x86_64", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
  90     { "x86_64", "q35", "-device sga", "SGABIOS" },
  91     { "sparc", "LX", "", "TMS390S10" },
  92     { "sparc", "SS-4", "", "MB86904" },
  93     { "sparc", "SS-600MP", "", "TMS390Z55" },
  94     { "sparc64", "sun4u", "", "UltraSPARC" },
  95     { "s390x", "s390-ccw-virtio",
  96       "-nodefaults -device sclpconsole,chardev=serial0", "virtio device" },
  97     { "m68k", "mcf5208evb", "", "TT", sizeof(kernel_mcf5208), kernel_mcf5208 },
  98     { "microblaze", "petalogix-s3adsp1800", "", "TT",
  99       sizeof(kernel_pls3adsp1800), kernel_pls3adsp1800 },
 100     { "microblazeel", "petalogix-ml605", "", "TT",
 101       sizeof(kernel_plml605), kernel_plml605 },
 102     { "moxie", "moxiesim", "", "TT", sizeof(bios_moxiesim), 0, bios_moxiesim },
 103     { "arm", "raspi2", "", "TT", sizeof(bios_raspi2), 0, bios_raspi2 },
 104     { "hppa", "hppa", "", "SeaBIOS wants SYSTEM HALT" },
 105     { "aarch64", "virt", "-cpu cortex-a57", "TT", sizeof(kernel_aarch64),
 106       kernel_aarch64 },
 107
 108     { NULL }
 109 };
 110
 111 static void check_guest_output(const testdef_t *test, int fd)
 112 {
 113     bool output_ok = false;
 114     int i, nbr = 0, pos = 0, ccnt;
 115     char ch;
 116
 117     /* Poll serial output... Wait at most 60 seconds */
 118     for (i = 0; i < 6000; ++i) {
 119         ccnt = 0;
 120         while (ccnt++ < 512 && (nbr = read(fd, &ch, 1)) == 1) {
 121             if (ch == test->expect[pos]) {
 122                 pos += 1;
 123                 if (test->expect[pos] == '\0') {
 124                     /* We've reached the end of the expected string! */
 125                     output_ok = true;
 126                     goto done;
 127                 }
 128             } else {
 129                 pos = 0;
 130             }
 131         }
 132         g_assert(nbr >= 0);
 133         g_usleep(10000);
 134     }
 135
 136 done:
 137     g_assert(output_ok);
 138 }
 139
 140 static void test_machine(const void *data)
 141 {
 142     const testdef_t *test = data;
 143     char serialtmp[] = "/tmp/qtest-boot-serial-sXXXXXX";
 144     char codetmp[] = "/tmp/qtest-boot-serial-cXXXXXX";
 145     const char *codeparam = "";
 146     const uint8_t *code = NULL;
 147     int ser_fd;
 148
 149     ser_fd = mkstemp(serialtmp);
 150     g_assert(ser_fd != -1);
 151
 152     if (test->kernel) {
 153         code = test->kernel;
 154         codeparam = "-kernel";
 155     } else if (test->bios) {
 156         code = test->bios;
 157         codeparam = "-bios";
 158     }
 159
 160     if (code) {
 161         ssize_t wlen;
 162         int code_fd;
 163
 164         code_fd = mkstemp(codetmp);
 165         g_assert(code_fd != -1);
 166         wlen = write(code_fd, code, test->codesize);
 167         g_assert(wlen == test->codesize);
 168         close(code_fd);
 169     }
 170
 171     /*
 172      * Make sure that this test uses tcg if available: It is used as a
 173      * fast-enough smoketest for that.
 174      */
 175     global_qtest = qtest_startf("%s %s -M %s,accel=tcg:kvm "
 176                                 "-chardev file,id=serial0,path=%s "
 177                                 "-no-shutdown -serial chardev:serial0 %s",
 178                                 codeparam, code ? codetmp : "",
 179                                 test->machine, serialtmp, test->extra);
 180     unlink(serialtmp);
 181     if (code) {
 182         unlink(codetmp);
 183     }
 184
 185     check_guest_output(test, ser_fd);
 186     qtest_quit(global_qtest);
 187
 188     close(ser_fd);
 189 }
 190
 191 int main(int argc, char *argv[])
 192 {
 193     const char *arch = qtest_get_arch();
 194     int i;
 195
 196     g_test_init(&argc, &argv, NULL);
 197
 198     for (i = 0; tests[i].arch != NULL; i++) {
 199         if (strcmp(arch, tests[i].arch) == 0) {
 200             char *name = g_strdup_printf("boot-serial/%s", tests[i].machine);
 201             qtest_add_data_func(name, &tests[i], test_machine);
 202             g_free(name);
 203         }
 204     }
 205
 206     return g_test_run();
 207 }