tests/qtest/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 "libqos/libqtest.h"
  18 #include "libqos/libqos-spapr.h"
  19
  20 static const uint8_t bios_avr[] = {
  21     0x88, 0xe0,             /* ldi r24, 0x08   */
  22     0x80, 0x93, 0xc1, 0x00, /* sts 0x00C1, r24 ; Enable tx */
  23     0x86, 0xe0,             /* ldi r24, 0x06   */
  24     0x80, 0x93, 0xc2, 0x00, /* sts 0x00C2, r24 ; Set the data bits to 8 */
  25     0x84, 0xe5,             /* ldi r24, 0x54   */
  26     0x80, 0x93, 0xc6, 0x00, /* sts 0x00C6, r24 ; Output 'T' */
  27 };
  28
  29 static const uint8_t kernel_mcf5208[] = {
  30     0x41, 0xf9, 0xfc, 0x06, 0x00, 0x00,     /* lea 0xfc060000,%a0 */
  31     0x10, 0x3c, 0x00, 0x54,                 /* move.b #'T',%d0 */
  32     0x11, 0x7c, 0x00, 0x04, 0x00, 0x08,     /* move.b #4,8(%a0)     Enable TX */
  33     0x11, 0x40, 0x00, 0x0c,                 /* move.b %d0,12(%a0)   Print 'T' */
  34     0x60, 0xfa                              /* bra.s  loop */
  35 };
  36
  37 static const uint8_t bios_nextcube[] = {
  38     0x06, 0x00, 0x00, 0x00,                 /* Initial SP */
  39     0x01, 0x00, 0x00, 0x08,                 /* Initial PC */
  40     0x41, 0xf9, 0x02, 0x11, 0x80, 0x00,     /* lea 0x02118000,%a0 */
  41     0x10, 0x3c, 0x00, 0x54,                 /* move.b #'T',%d0 */
  42     0x11, 0x7c, 0x00, 0x05, 0x00, 0x01,     /* move.b #5,1(%a0)    Sel TXCTRL */
  43     0x11, 0x7c, 0x00, 0x68, 0x00, 0x01,     /* move.b #0x68,1(%a0) Enable TX */
  44     0x11, 0x40, 0x00, 0x03,                 /* move.b %d0,3(%a0)   Print 'T' */
  45     0x60, 0xfa                              /* bra.s  loop */
  46 };
  47
  48 static const uint8_t kernel_pls3adsp1800[] = {
  49     0xb0, 0x00, 0x84, 0x00,                 /* imm   0x8400 */
  50     0x30, 0x60, 0x00, 0x04,                 /* addik r3,r0,4 */
  51     0x30, 0x80, 0x00, 0x54,                 /* addik r4,r0,'T' */
  52     0xf0, 0x83, 0x00, 0x00,                 /* sbi   r4,r3,0 */
  53     0xb8, 0x00, 0xff, 0xfc                  /* bri   -4  loop */
  54 };
  55
  56 static const uint8_t kernel_plml605[] = {
  57     0xe0, 0x83, 0x00, 0xb0,                 /* imm   0x83e0 */
  58     0x00, 0x10, 0x60, 0x30,                 /* addik r3,r0,0x1000 */
  59     0x54, 0x00, 0x80, 0x30,                 /* addik r4,r0,'T' */
  60     0x00, 0x00, 0x83, 0xf0,                 /* sbi   r4,r3,0 */
  61     0xfc, 0xff, 0x00, 0xb8                  /* bri   -4  loop */
  62 };
  63
  64 static const uint8_t bios_raspi2[] = {
  65     0x08, 0x30, 0x9f, 0xe5,                 /* ldr   r3,[pc,#8]    Get base */
  66     0x54, 0x20, 0xa0, 0xe3,                 /* mov     r2,#'T' */
  67     0x00, 0x20, 0xc3, 0xe5,                 /* strb    r2,[r3] */
  68     0xfb, 0xff, 0xff, 0xea,                 /* b       loop */
  69     0x00, 0x10, 0x20, 0x3f,                 /* 0x3f201000 = UART0 base addr */
  70 };
  71
  72 static const uint8_t kernel_aarch64[] = {
  73     0x81, 0x0a, 0x80, 0x52,                 /* mov     w1, #0x54 */
  74     0x02, 0x20, 0xa1, 0xd2,                 /* mov     x2, #0x9000000 */
  75     0x41, 0x00, 0x00, 0x39,                 /* strb    w1, [x2] */
  76     0xfd, 0xff, 0xff, 0x17,                 /* b       -12 (loop) */
  77 };
  78
  79 static const uint8_t kernel_nrf51[] = {
  80     0x00, 0x00, 0x00, 0x00,                 /* Stack top address */
  81     0x09, 0x00, 0x00, 0x00,                 /* Reset handler address */
  82     0x04, 0x4a,                             /* ldr  r2, [pc, #16] Get ENABLE */
  83     0x04, 0x21,                             /* movs r1, #4 */
  84     0x11, 0x60,                             /* str  r1, [r2] */
  85     0x04, 0x4a,                             /* ldr  r2, [pc, #16] Get STARTTX */
  86     0x01, 0x21,                             /* movs r1, #1 */
  87     0x11, 0x60,                             /* str  r1, [r2] */
  88     0x03, 0x4a,                             /* ldr  r2, [pc, #12] Get TXD */
  89     0x54, 0x21,                             /* movs r1, 'T' */
  90     0x11, 0x60,                             /* str  r1, [r2] */
  91     0xfe, 0xe7,                             /* b    . */
  92     0x00, 0x25, 0x00, 0x40,                 /* 0x40002500 = UART ENABLE */
  93     0x08, 0x20, 0x00, 0x40,                 /* 0x40002008 = UART STARTTX */
  94     0x1c, 0x25, 0x00, 0x40                  /* 0x4000251c = UART TXD */
  95 };
  96
  97 typedef struct testdef {
  98     const char *arch;       /* Target architecture */
  99     const char *machine;    /* Name of the machine */
 100     const char *extra;      /* Additional parameters */
 101     const char *expect;     /* Expected string in the serial output */
 102     size_t codesize;        /* Size of the kernel or bios data */
 103     const uint8_t *kernel;  /* Set in case we use our own mini kernel */
 104     const uint8_t *bios;    /* Set in case we use our own mini bios */
 105 } testdef_t;
 106
 107 static testdef_t tests[] = {
 108     { "alpha", "clipper", "", "PCI:" },
 109     { "avr", "arduino-duemilanove", "", "T", sizeof(bios_avr), NULL, bios_avr },
 110     { "avr", "arduino-mega-2560-v3", "", "T", sizeof(bios_avr), NULL, bios_avr},
 111     { "ppc", "ppce500", "", "U-Boot" },
 112     { "ppc", "40p", "-vga none -boot d", "Trying cd:," },
 113     { "ppc", "g3beige", "", "PowerPC,750" },
 114     { "ppc", "mac99", "", "PowerPC,G4" },
 115     { "ppc", "sam460ex", "-m 256", "DRAM:  256 MiB" },
 116     { "ppc64", "ppce500", "", "U-Boot" },
 117     { "ppc64", "40p", "-m 192", "Memory: 192M" },
 118     { "ppc64", "mac99", "", "PowerPC,970FX" },
 119     { "ppc64", "pseries",
 120       "-machine " PSERIES_DEFAULT_CAPABILITIES,
 121       "Open Firmware" },
 122     { "ppc64", "powernv8", "", "OPAL" },
 123     { "ppc64", "powernv9", "", "OPAL" },
 124     { "ppc64", "sam460ex", "-device e1000", "8086  100e" },
 125     { "i386", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
 126     { "i386", "pc", "-device sga", "SGABIOS" },
 127     { "i386", "q35", "-device sga", "SGABIOS" },
 128     { "x86_64", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
 129     { "x86_64", "q35", "-device sga", "SGABIOS" },
 130     { "sparc", "LX", "", "TMS390S10" },
 131     { "sparc", "SS-4", "", "MB86904" },
 132     { "sparc", "SS-600MP", "", "TMS390Z55" },
 133     { "sparc64", "sun4u", "", "UltraSPARC" },
 134     { "s390x", "s390-ccw-virtio", "", "device" },
 135     { "m68k", "mcf5208evb", "", "TT", sizeof(kernel_mcf5208), kernel_mcf5208 },
 136     { "m68k", "next-cube", "", "TT", sizeof(bios_nextcube), 0, bios_nextcube },
 137     { "microblaze", "petalogix-s3adsp1800", "", "TT",
 138       sizeof(kernel_pls3adsp1800), kernel_pls3adsp1800 },
 139     { "microblazeel", "petalogix-ml605", "", "TT",
 140       sizeof(kernel_plml605), kernel_plml605 },
 141     { "arm", "raspi2", "", "TT", sizeof(bios_raspi2), 0, bios_raspi2 },
 142     /* For hppa, force bios to output to serial by disabling graphics. */
 143     { "hppa", "hppa", "-vga none", "SeaBIOS wants SYSTEM HALT" },
 144     { "aarch64", "virt", "-cpu max", "TT", sizeof(kernel_aarch64),
 145       kernel_aarch64 },
 146     { "arm", "microbit", "", "T", sizeof(kernel_nrf51), kernel_nrf51 },
 147
 148     { NULL }
 149 };
 150
 151 static bool check_guest_output(QTestState *qts, const testdef_t *test, int fd)
 152 {
 153     int nbr = 0, pos = 0, ccnt;
 154     time_t now, start = time(NULL);
 155     char ch;
 156
 157     /* Poll serial output... */
 158     while (1) {
 159         ccnt = 0;
 160         while (ccnt++ < 512 && (nbr = read(fd, &ch, 1)) == 1) {
 161             if (ch == test->expect[pos]) {
 162                 pos += 1;
 163                 if (test->expect[pos] == '\0') {
 164                     /* We've reached the end of the expected string! */
 165                     return true;
 166                 }
 167             } else {
 168                 pos = 0;
 169             }
 170         }
 171         g_assert(nbr >= 0);
 172         /* Wait only if the child is still alive.  */
 173         if (!qtest_probe_child(qts)) {
 174             break;
 175         }
 176         /* Wait at most 360 seconds.  */
 177         now = time(NULL);
 178         if (now - start >= 360) {
 179             break;
 180         }
 181         g_usleep(10000);
 182     }
 183
 184     return false;
 185 }
 186
 187 static void test_machine(const void *data)
 188 {
 189     const testdef_t *test = data;
 190     char serialtmp[] = "/tmp/qtest-boot-serial-sXXXXXX";
 191     char codetmp[] = "/tmp/qtest-boot-serial-cXXXXXX";
 192     const char *codeparam = "";
 193     const uint8_t *code = NULL;
 194     QTestState *qts;
 195     int ser_fd;
 196
 197     ser_fd = mkstemp(serialtmp);
 198     g_assert(ser_fd != -1);
 199
 200     if (test->kernel) {
 201         code = test->kernel;
 202         codeparam = "-kernel";
 203     } else if (test->bios) {
 204         code = test->bios;
 205         codeparam = "-bios";
 206     }
 207
 208     if (code) {
 209         ssize_t wlen;
 210         int code_fd;
 211
 212         code_fd = mkstemp(codetmp);
 213         g_assert(code_fd != -1);
 214         wlen = write(code_fd, code, test->codesize);
 215         g_assert(wlen == test->codesize);
 216         close(code_fd);
 217     }
 218
 219     /*
 220      * Make sure that this test uses tcg if available: It is used as a
 221      * fast-enough smoketest for that.
 222      */
 223     qts = qtest_initf("%s %s -M %s -no-shutdown "
 224                       "-chardev file,id=serial0,path=%s "
 225                       "-serial chardev:serial0 -accel tcg -accel kvm %s",
 226                       codeparam, code ? codetmp : "", test->machine,
 227                       serialtmp, test->extra);
 228     if (code) {
 229         unlink(codetmp);
 230     }
 231
 232     if (!check_guest_output(qts, test, ser_fd)) {
 233         g_error("Failed to find expected string. Please check '%s'",
 234                 serialtmp);
 235     }
 236     unlink(serialtmp);
 237
 238     qtest_quit(qts);
 239
 240     close(ser_fd);
 241 }
 242
 243 int main(int argc, char *argv[])
 244 {
 245     const char *arch = qtest_get_arch();
 246     int i;
 247
 248     g_test_init(&argc, &argv, NULL);
 249
 250     for (i = 0; tests[i].arch != NULL; i++) {
 251         if (strcmp(arch, tests[i].arch) == 0) {
 252             char *name = g_strdup_printf("boot-serial/%s", tests[i].machine);
 253             qtest_add_data_func(name, &tests[i], test_machine);
 254             g_free(name);
 255         }
 256     }
 257
 258     return g_test_run();
 259 }