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 "libqtest.h"
  18 #include "ppc-util.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 bios_loongarch64[] = {
  30     0x0c, 0xc0, 0x3f, 0x14,                 /* lu12i.w $t0, 0x1fe00    */
  31     0x8c, 0x81, 0x87, 0x03,                 /* ori     $t0, $t0, 0x1e0 */
  32     0x0d, 0x50, 0x81, 0x03,                 /* li.w    $t1, 'T'        */
  33     0x8d, 0x01, 0x00, 0x29,                 /* st.b    $t1, $t0, 0     */
  34     0xff, 0xf3, 0xff, 0x53,                 /*  b      -16  # loop     */
  35 };
  36
  37 static const uint8_t kernel_mcf5208[] = {
  38     0x41, 0xf9, 0xfc, 0x06, 0x00, 0x00,     /* lea 0xfc060000,%a0 */
  39     0x10, 0x3c, 0x00, 0x54,                 /* move.b #'T',%d0 */
  40     0x11, 0x7c, 0x00, 0x04, 0x00, 0x08,     /* move.b #4,8(%a0)     Enable TX */
  41     0x11, 0x40, 0x00, 0x0c,                 /* move.b %d0,12(%a0)   Print 'T' */
  42     0x60, 0xfa                              /* bra.s  loop */
  43 };
  44
  45 static const uint8_t bios_nextcube[] = {
  46     0x06, 0x00, 0x00, 0x00,                 /* Initial SP */
  47     0x01, 0x00, 0x00, 0x08,                 /* Initial PC */
  48     0x41, 0xf9, 0x02, 0x11, 0x80, 0x00,     /* lea 0x02118000,%a0 */
  49     0x10, 0x3c, 0x00, 0x54,                 /* move.b #'T',%d0 */
  50     0x11, 0x7c, 0x00, 0x05, 0x00, 0x01,     /* move.b #5,1(%a0)    Sel TXCTRL */
  51     0x11, 0x7c, 0x00, 0x68, 0x00, 0x01,     /* move.b #0x68,1(%a0) Enable TX */
  52     0x11, 0x40, 0x00, 0x03,                 /* move.b %d0,3(%a0)   Print 'T' */
  53     0x60, 0xfa                              /* bra.s  loop */
  54 };
  55
  56 static const uint8_t kernel_pls3adsp1800[] = {
  57     0xb0, 0x00, 0x84, 0x00,                 /* imm   0x8400 */
  58     0x30, 0x60, 0x00, 0x04,                 /* addik r3,r0,4 */
  59     0x30, 0x80, 0x00, 0x54,                 /* addik r4,r0,'T' */
  60     0xf0, 0x83, 0x00, 0x00,                 /* sbi   r4,r3,0 */
  61     0xb8, 0x00, 0xff, 0xfc                  /* bri   -4  loop */
  62 };
  63
  64 static const uint8_t kernel_plml605[] = {
  65     0xe0, 0x83, 0x00, 0xb0,                 /* imm   0x83e0 */
  66     0x00, 0x10, 0x60, 0x30,                 /* addik r3,r0,0x1000 */
  67     0x54, 0x00, 0x80, 0x30,                 /* addik r4,r0,'T' */
  68     0x00, 0x00, 0x83, 0xf0,                 /* sbi   r4,r3,0 */
  69     0xfc, 0xff, 0x00, 0xb8                  /* bri   -4  loop */
  70 };
  71
  72 static const uint8_t bios_raspi2[] = {
  73     0x08, 0x30, 0x9f, 0xe5,                 /* ldr   r3,[pc,#8]    Get base */
  74     0x54, 0x20, 0xa0, 0xe3,                 /* mov     r2,#'T' */
  75     0x00, 0x20, 0xc3, 0xe5,                 /* strb    r2,[r3] */
  76     0xfb, 0xff, 0xff, 0xea,                 /* b       loop */
  77     0x00, 0x10, 0x20, 0x3f,                 /* 0x3f201000 = UART0 base addr */
  78 };
  79
  80 static const uint8_t kernel_aarch64[] = {
  81     0x81, 0x0a, 0x80, 0x52,                 /* mov     w1, #0x54 */
  82     0x02, 0x20, 0xa1, 0xd2,                 /* mov     x2, #0x9000000 */
  83     0x41, 0x00, 0x00, 0x39,                 /* strb    w1, [x2] */
  84     0xfd, 0xff, 0xff, 0x17,                 /* b       -12 (loop) */
  85 };
  86
  87 static const uint8_t kernel_nrf51[] = {
  88     0x00, 0x00, 0x00, 0x00,                 /* Stack top address */
  89     0x09, 0x00, 0x00, 0x00,                 /* Reset handler address */
  90     0x04, 0x4a,                             /* ldr  r2, [pc, #16] Get ENABLE */
  91     0x04, 0x21,                             /* movs r1, #4 */
  92     0x11, 0x60,                             /* str  r1, [r2] */
  93     0x04, 0x4a,                             /* ldr  r2, [pc, #16] Get STARTTX */
  94     0x01, 0x21,                             /* movs r1, #1 */
  95     0x11, 0x60,                             /* str  r1, [r2] */
  96     0x03, 0x4a,                             /* ldr  r2, [pc, #12] Get TXD */
  97     0x54, 0x21,                             /* movs r1, 'T' */
  98     0x11, 0x60,                             /* str  r1, [r2] */
  99     0xfe, 0xe7,                             /* b    . */
 100     0x00, 0x25, 0x00, 0x40,                 /* 0x40002500 = UART ENABLE */
 101     0x08, 0x20, 0x00, 0x40,                 /* 0x40002008 = UART STARTTX */
 102     0x1c, 0x25, 0x00, 0x40                  /* 0x4000251c = UART TXD */
 103 };
 104
 105 static const uint8_t kernel_stm32vldiscovery[] = {
 106     0x00, 0x00, 0x00, 0x00,                 /* Stack top address */
 107     0x1d, 0x00, 0x00, 0x00,                 /* Reset handler address */
 108     0x00, 0x00, 0x00, 0x00,                 /* NMI */
 109     0x00, 0x00, 0x00, 0x00,                 /* Hard fault */
 110     0x00, 0x00, 0x00, 0x00,                 /* Memory management fault */
 111     0x00, 0x00, 0x00, 0x00,                 /* Bus fault */
 112     0x00, 0x00, 0x00, 0x00,                 /* Usage fault */
 113     0x0b, 0x4b,                             /* ldr  r3, [pc, #44] Get RCC */
 114     0x44, 0xf2, 0x04, 0x02,                 /* movw r2, #16388 */
 115     0x1a, 0x60,                             /* str  r2, [r3] */
 116     0x0a, 0x4b,                             /* ldr  r3, [pc, #40] Get GPIOA */
 117     0x1a, 0x68,                             /* ldr  r2, [r3] */
 118     0x22, 0xf0, 0xf0, 0x02,                 /* bic  r2, r2, #240 */
 119     0x1a, 0x60,                             /* str  r2, [r3] */
 120     0x1a, 0x68,                             /* ldr  r2, [r3] */
 121     0x42, 0xf0, 0xb0, 0x02,                 /* orr  r2, r2, #176 */
 122     0x1a, 0x60,                             /* str  r2, [r3] */
 123     0x07, 0x4b,                             /* ldr  r3, [pc, #26] Get BAUD */
 124     0x45, 0x22,                             /* movs r2, #69 */
 125     0x1a, 0x60,                             /* str  r2, [r3] */
 126     0x06, 0x4b,                             /* ldr  r3, [pc, #24] Get ENABLE */
 127     0x42, 0xf2, 0x08, 0x02,                 /* movw r2, #8200 */
 128     0x1a, 0x60,                             /* str  r2, [r3] */
 129     0x05, 0x4b,                             /* ldr  r3, [pc, #20] Get TXD */
 130     0x54, 0x22,                             /* movs r2, 'T' */
 131     0x1a, 0x60,                             /* str  r2, [r3] */
 132     0xfe, 0xe7,                             /* b    . */
 133     0x18, 0x10, 0x02, 0x40,                 /* 0x40021018 = RCC */
 134     0x04, 0x08, 0x01, 0x40,                 /* 0x40010804 = GPIOA */
 135     0x08, 0x38, 0x01, 0x40,                 /* 0x40013808 = USART1 BAUD */
 136     0x0c, 0x38, 0x01, 0x40,                 /* 0x4001380c = USART1 ENABLE */
 137     0x04, 0x38, 0x01, 0x40                  /* 0x40013804 = USART1 TXD */
 138 };
 139
 140 typedef struct testdef {
 141     const char *arch;       /* Target architecture */
 142     const char *machine;    /* Name of the machine */
 143     const char *extra;      /* Additional parameters */
 144     const char *expect;     /* Expected string in the serial output */
 145     size_t codesize;        /* Size of the kernel or bios data */
 146     const uint8_t *kernel;  /* Set in case we use our own mini kernel */
 147     const uint8_t *bios;    /* Set in case we use our own mini bios */
 148 } testdef_t;
 149
 150 static const testdef_t tests[] = {
 151     { "alpha", "clipper", "", "PCI:" },
 152     { "avr", "arduino-duemilanove", "", "T", sizeof(bios_avr), NULL, bios_avr },
 153     { "avr", "arduino-mega-2560-v3", "", "T", sizeof(bios_avr), NULL, bios_avr},
 154     { "ppc", "ppce500", "", "U-Boot" },
 155     { "ppc", "40p", "-vga none -boot d", "Trying cd:," },
 156     { "ppc", "g3beige", "", "PowerPC,750" },
 157     { "ppc", "mac99", "", "PowerPC,G4" },
 158     { "ppc", "sam460ex", "-m 256", "DRAM:  256 MiB" },
 159     { "ppc64", "ppce500", "", "U-Boot" },
 160     { "ppc64", "40p", "-m 192", "Memory: 192M" },
 161     { "ppc64", "mac99", "", "PowerPC,970FX" },
 162     { "ppc64", "pseries",
 163       "-machine " PSERIES_DEFAULT_CAPABILITIES,
 164       "Open Firmware" },
 165     { "ppc64", "powernv8", "", "OPAL" },
 166     { "ppc64", "powernv9", "", "OPAL" },
 167     { "ppc64", "sam460ex", "-device pci-bridge,chassis_nr=2", "1b36  0001" },
 168     { "i386", "isapc", "-cpu qemu32 -M graphics=off", "SeaBIOS" },
 169     { "i386", "pc", "-M graphics=off", "SeaBIOS" },
 170     { "i386", "q35", "-M graphics=off", "SeaBIOS" },
 171     { "x86_64", "isapc", "-cpu qemu32 -M graphics=off", "SeaBIOS" },
 172     { "x86_64", "q35", "-M graphics=off", "SeaBIOS" },
 173     { "sparc", "LX", "", "TMS390S10" },
 174     { "sparc", "SS-4", "", "MB86904" },
 175     { "sparc", "SS-600MP", "", "TMS390Z55" },
 176     { "sparc64", "sun4u", "", "UltraSPARC" },
 177     { "s390x", "s390-ccw-virtio", "", "device" },
 178     { "loongarch64", "virt", "-cpu max", "TT", sizeof(bios_loongarch64),
 179       NULL, bios_loongarch64 },
 180     { "m68k", "mcf5208evb", "", "TT", sizeof(kernel_mcf5208), kernel_mcf5208 },
 181     { "m68k", "next-cube", "", "TT", sizeof(bios_nextcube), 0, bios_nextcube },
 182     { "microblaze", "petalogix-s3adsp1800", "", "TT",
 183       sizeof(kernel_pls3adsp1800), kernel_pls3adsp1800 },
 184     { "microblazeel", "petalogix-ml605", "", "TT",
 185       sizeof(kernel_plml605), kernel_plml605 },
 186     { "arm", "raspi2b", "", "TT", sizeof(bios_raspi2), 0, bios_raspi2 },
 187     /* For hppa, force bios to output to serial by disabling graphics. */
 188     { "hppa", "hppa", "-vga none", "SeaBIOS wants SYSTEM HALT" },
 189     { "aarch64", "virt", "-cpu max", "TT", sizeof(kernel_aarch64),
 190       kernel_aarch64 },
 191     { "arm", "microbit", "", "T", sizeof(kernel_nrf51), kernel_nrf51 },
 192     { "arm", "stm32vldiscovery", "", "T",
 193       sizeof(kernel_stm32vldiscovery), kernel_stm32vldiscovery },
 194
 195     { NULL }
 196 };
 197
 198 static bool check_guest_output(QTestState *qts, const testdef_t *test, int fd)
 199 {
 200     int nbr = 0, pos = 0, ccnt;
 201     time_t now, start = time(NULL);
 202     char ch;
 203
 204     /* Poll serial output... */
 205     while (1) {
 206         ccnt = 0;
 207         while (ccnt++ < 512 && (nbr = read(fd, &ch, 1)) == 1) {
 208             if (ch == test->expect[pos]) {
 209                 pos += 1;
 210                 if (test->expect[pos] == '\0') {
 211                     /* We've reached the end of the expected string! */
 212                     return true;
 213                 }
 214             } else {
 215                 pos = 0;
 216             }
 217         }
 218         g_assert(nbr >= 0);
 219         /* Wait only if the child is still alive.  */
 220         if (!qtest_probe_child(qts)) {
 221             break;
 222         }
 223         /* Wait at most 360 seconds.  */
 224         now = time(NULL);
 225         if (now - start >= 360) {
 226             break;
 227         }
 228         g_usleep(10000);
 229     }
 230
 231     return false;
 232 }
 233
 234 static void test_machine(const void *data)
 235 {
 236     const testdef_t *test = data;
 237     g_autofree char *serialtmp = NULL;
 238     g_autofree char *codetmp = NULL;
 239     const char *codeparam = "";
 240     const uint8_t *code = NULL;
 241     QTestState *qts;
 242     int ser_fd;
 243
 244     ser_fd = g_file_open_tmp("qtest-boot-serial-sXXXXXX", &serialtmp, NULL);
 245     g_assert(ser_fd != -1);
 246     close(ser_fd);
 247
 248     if (test->kernel) {
 249         code = test->kernel;
 250         codeparam = "-kernel";
 251     } else if (test->bios) {
 252         code = test->bios;
 253         codeparam = "-bios";
 254     }
 255
 256     if (code) {
 257         ssize_t wlen;
 258         int code_fd;
 259
 260         code_fd = g_file_open_tmp("qtest-boot-serial-cXXXXXX", &codetmp, NULL);
 261         g_assert(code_fd != -1);
 262         wlen = write(code_fd, code, test->codesize);
 263         g_assert(wlen == test->codesize);
 264         close(code_fd);
 265     }
 266
 267     /*
 268      * Make sure that this test uses tcg if available: It is used as a
 269      * fast-enough smoketest for that.
 270      */
 271     qts = qtest_initf("%s %s -M %s -no-shutdown "
 272                       "-chardev file,id=serial0,path=%s "
 273                       "-serial chardev:serial0 -accel tcg -accel kvm %s",
 274                       codeparam, code ? codetmp : "", test->machine,
 275                       serialtmp, test->extra);
 276     if (code) {
 277         unlink(codetmp);
 278     }
 279
 280     ser_fd = open(serialtmp, O_RDONLY);
 281     g_assert(ser_fd != -1);
 282     if (!check_guest_output(qts, test, ser_fd)) {
 283         g_error("Failed to find expected string. Please check '%s'",
 284                 serialtmp);
 285     }
 286     unlink(serialtmp);
 287
 288     qtest_quit(qts);
 289
 290     close(ser_fd);
 291 }
 292
 293 int main(int argc, char *argv[])
 294 {
 295     const char *arch = qtest_get_arch();
 296     int i;
 297
 298     g_test_init(&argc, &argv, NULL);
 299
 300     if (!qtest_has_accel("tcg") && !qtest_has_accel("kvm")) {
 301         g_test_skip("No KVM or TCG accelerator available");
 302         return 0;
 303     }
 304
 305     for (i = 0; tests[i].arch != NULL; i++) {
 306         if (g_str_equal(arch, tests[i].arch) &&
 307             qtest_has_machine(tests[i].machine)) {
 308             char *name = g_strdup_printf("boot-serial/%s", tests[i].machine);
 309             qtest_add_data_func(name, &tests[i], test_machine);
 310             g_free(name);
 311         }
 312     }
 313
 314     return g_test_run();
 315 }