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 static const uint8_t kernel_nrf51[] = {
  66     0x00, 0x00, 0x00, 0x00,                 /* Stack top address */
  67     0x09, 0x00, 0x00, 0x00,                 /* Reset handler address */
  68     0x04, 0x4a,                             /* ldr  r2, [pc, #16] Get ENABLE */
  69     0x04, 0x21,                             /* movs r1, #4 */
  70     0x11, 0x60,                             /* str  r1, [r2] */
  71     0x04, 0x4a,                             /* ldr  r2, [pc, #16] Get STARTTX */
  72     0x01, 0x21,                             /* movs r1, #1 */
  73     0x11, 0x60,                             /* str  r1, [r2] */
  74     0x03, 0x4a,                             /* ldr  r2, [pc, #12] Get TXD */
  75     0x54, 0x21,                             /* movs r1, 'T' */
  76     0x11, 0x60,                             /* str  r1, [r2] */
  77     0xfe, 0xe7,                             /* b    . */
  78     0x00, 0x25, 0x00, 0x40,                 /* 0x40002500 = UART ENABLE */
  79     0x08, 0x20, 0x00, 0x40,                 /* 0x40002008 = UART STARTTX */
  80     0x1c, 0x25, 0x00, 0x40                  /* 0x4000251c = UART TXD */
  81 };
  82
  83 typedef struct testdef {
  84     const char *arch;       /* Target architecture */
  85     const char *machine;    /* Name of the machine */
  86     const char *extra;      /* Additional parameters */
  87     const char *expect;     /* Expected string in the serial output */
  88     size_t codesize;        /* Size of the kernel or bios data */
  89     const uint8_t *kernel;  /* Set in case we use our own mini kernel */
  90     const uint8_t *bios;    /* Set in case we use our own mini bios */
  91 } testdef_t;
  92
  93 static testdef_t tests[] = {
  94     { "alpha", "clipper", "", "PCI:" },
  95     { "ppc", "ppce500", "", "U-Boot" },
  96     { "ppc", "40p", "-vga none -boot d", "Trying cd:," },
  97     { "ppc", "g3beige", "", "PowerPC,750" },
  98     { "ppc", "mac99", "", "PowerPC,G4" },
  99     { "ppc", "sam460ex", "-m 256", "DRAM:  256 MiB" },
 100     { "ppc64", "ppce500", "", "U-Boot" },
 101     { "ppc64", "40p", "-m 192", "Memory: 192M" },
 102     { "ppc64", "mac99", "", "PowerPC,970FX" },
 103     { "ppc64", "pseries",
 104       "-machine cap-cfpc=broken,cap-sbbc=broken,cap-ibs=broken",
 105       "Open Firmware" },
 106     { "ppc64", "powernv", "-cpu POWER8", "OPAL" },
 107     { "ppc64", "sam460ex", "-device e1000", "8086  100e" },
 108     { "i386", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
 109     { "i386", "pc", "-device sga", "SGABIOS" },
 110     { "i386", "q35", "-device sga", "SGABIOS" },
 111     { "x86_64", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
 112     { "x86_64", "q35", "-device sga", "SGABIOS" },
 113     { "sparc", "LX", "", "TMS390S10" },
 114     { "sparc", "SS-4", "", "MB86904" },
 115     { "sparc", "SS-600MP", "", "TMS390Z55" },
 116     { "sparc64", "sun4u", "", "UltraSPARC" },
 117     { "s390x", "s390-ccw-virtio", "", "device" },
 118     { "m68k", "mcf5208evb", "", "TT", sizeof(kernel_mcf5208), kernel_mcf5208 },
 119     { "microblaze", "petalogix-s3adsp1800", "", "TT",
 120       sizeof(kernel_pls3adsp1800), kernel_pls3adsp1800 },
 121     { "microblazeel", "petalogix-ml605", "", "TT",
 122       sizeof(kernel_plml605), kernel_plml605 },
 123     { "moxie", "moxiesim", "", "TT", sizeof(bios_moxiesim), 0, bios_moxiesim },
 124     { "arm", "raspi2", "", "TT", sizeof(bios_raspi2), 0, bios_raspi2 },
 125     { "hppa", "hppa", "", "SeaBIOS wants SYSTEM HALT" },
 126     { "aarch64", "virt", "-cpu cortex-a57", "TT", sizeof(kernel_aarch64),
 127       kernel_aarch64 },
 128     { "arm", "microbit", "", "T", sizeof(kernel_nrf51), kernel_nrf51 },
 129
 130     { NULL }
 131 };
 132
 133 static bool check_guest_output(QTestState *qts, const testdef_t *test, int fd)
 134 {
 135     int nbr = 0, pos = 0, ccnt;
 136     time_t now, start = time(NULL);
 137     char ch;
 138
 139     /* Poll serial output... */
 140     while (1) {
 141         ccnt = 0;
 142         while (ccnt++ < 512 && (nbr = read(fd, &ch, 1)) == 1) {
 143             if (ch == test->expect[pos]) {
 144                 pos += 1;
 145                 if (test->expect[pos] == '\0') {
 146                     /* We've reached the end of the expected string! */
 147                     return true;
 148                 }
 149             } else {
 150                 pos = 0;
 151             }
 152         }
 153         g_assert(nbr >= 0);
 154         /* Wait only if the child is still alive.  */
 155         if (!qtest_probe_child(qts)) {
 156             break;
 157         }
 158         /* Wait at most 360 seconds.  */
 159         now = time(NULL);
 160         if (now - start >= 360) {
 161             break;
 162         }
 163         g_usleep(10000);
 164     }
 165
 166     return false;
 167 }
 168
 169 static void test_machine(const void *data)
 170 {
 171     const testdef_t *test = data;
 172     char serialtmp[] = "/tmp/qtest-boot-serial-sXXXXXX";
 173     char codetmp[] = "/tmp/qtest-boot-serial-cXXXXXX";
 174     const char *codeparam = "";
 175     const uint8_t *code = NULL;
 176     QTestState *qts;
 177     int ser_fd;
 178
 179     ser_fd = mkstemp(serialtmp);
 180     g_assert(ser_fd != -1);
 181
 182     if (test->kernel) {
 183         code = test->kernel;
 184         codeparam = "-kernel";
 185     } else if (test->bios) {
 186         code = test->bios;
 187         codeparam = "-bios";
 188     }
 189
 190     if (code) {
 191         ssize_t wlen;
 192         int code_fd;
 193
 194         code_fd = mkstemp(codetmp);
 195         g_assert(code_fd != -1);
 196         wlen = write(code_fd, code, test->codesize);
 197         g_assert(wlen == test->codesize);
 198         close(code_fd);
 199     }
 200
 201     /*
 202      * Make sure that this test uses tcg if available: It is used as a
 203      * fast-enough smoketest for that.
 204      */
 205     qts = qtest_initf("%s %s -M %s,accel=tcg:kvm -no-shutdown "
 206                       "-chardev file,id=serial0,path=%s "
 207                       "-serial chardev:serial0 %s",
 208                       codeparam, code ? codetmp : "", test->machine,
 209                       serialtmp, test->extra);
 210     if (code) {
 211         unlink(codetmp);
 212     }
 213
 214     if (!check_guest_output(qts, test, ser_fd)) {
 215         g_error("Failed to find expected string. Please check '%s'",
 216                 serialtmp);
 217     }
 218     unlink(serialtmp);
 219
 220     qtest_quit(qts);
 221
 222     close(ser_fd);
 223 }
 224
 225 int main(int argc, char *argv[])
 226 {
 227     const char *arch = qtest_get_arch();
 228     int i;
 229
 230     g_test_init(&argc, &argv, NULL);
 231
 232     for (i = 0; tests[i].arch != NULL; i++) {
 233         if (strcmp(arch, tests[i].arch) == 0) {
 234             char *name = g_strdup_printf("boot-serial/%s", tests[i].machine);
 235             qtest_add_data_func(name, &tests[i], test_machine);
 236             g_free(name);
 237         }
 238     }
 239
 240     return g_test_run();
 241 }