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 bios_nextcube[] = {
  28     0x06, 0x00, 0x00, 0x00,                 /* Initial SP */
  29     0x01, 0x00, 0x00, 0x08,                 /* Initial PC */
  30     0x41, 0xf9, 0x02, 0x11, 0x80, 0x00,     /* lea 0x02118000,%a0 */
  31     0x10, 0x3c, 0x00, 0x54,                 /* move.b #'T',%d0 */
  32     0x11, 0x7c, 0x00, 0x05, 0x00, 0x01,     /* move.b #5,1(%a0)    Sel TXCTRL */
  33     0x11, 0x7c, 0x00, 0x68, 0x00, 0x01,     /* move.b #0x68,1(%a0) Enable TX */
  34     0x11, 0x40, 0x00, 0x03,                 /* move.b %d0,3(%a0)   Print 'T' */
  35     0x60, 0xfa                              /* bra.s  loop */
  36 };
  37
  38 static const uint8_t kernel_pls3adsp1800[] = {
  39     0xb0, 0x00, 0x84, 0x00,                 /* imm   0x8400 */
  40     0x30, 0x60, 0x00, 0x04,                 /* addik r3,r0,4 */
  41     0x30, 0x80, 0x00, 0x54,                 /* addik r4,r0,'T' */
  42     0xf0, 0x83, 0x00, 0x00,                 /* sbi   r4,r3,0 */
  43     0xb8, 0x00, 0xff, 0xfc                  /* bri   -4  loop */
  44 };
  45
  46 static const uint8_t kernel_plml605[] = {
  47     0xe0, 0x83, 0x00, 0xb0,                 /* imm   0x83e0 */
  48     0x00, 0x10, 0x60, 0x30,                 /* addik r3,r0,0x1000 */
  49     0x54, 0x00, 0x80, 0x30,                 /* addik r4,r0,'T' */
  50     0x00, 0x00, 0x83, 0xf0,                 /* sbi   r4,r3,0 */
  51     0xfc, 0xff, 0x00, 0xb8                  /* bri   -4  loop */
  52 };
  53
  54 static const uint8_t bios_moxiesim[] = {
  55     0x20, 0x10, 0x00, 0x00, 0x03, 0xf8,     /* ldi.s r1,0x3f8 */
  56     0x1b, 0x20, 0x00, 0x00, 0x00, 0x54,     /* ldi.b r2,'T' */
  57     0x1e, 0x12,                             /* st.b  r1,r2 */
  58     0x1a, 0x00, 0x00, 0x00, 0x10, 0x00      /* jmpa  0x1000 */
  59 };
  60
  61 static const uint8_t bios_raspi2[] = {
  62     0x08, 0x30, 0x9f, 0xe5,                 /* ldr   r3,[pc,#8]    Get base */
  63     0x54, 0x20, 0xa0, 0xe3,                 /* mov     r2,#'T' */
  64     0x00, 0x20, 0xc3, 0xe5,                 /* strb    r2,[r3] */
  65     0xfb, 0xff, 0xff, 0xea,                 /* b       loop */
  66     0x00, 0x10, 0x20, 0x3f,                 /* 0x3f201000 = UART0 base addr */
  67 };
  68
  69 static const uint8_t kernel_aarch64[] = {
  70     0x81, 0x0a, 0x80, 0x52,                 /* mov     w1, #0x54 */
  71     0x02, 0x20, 0xa1, 0xd2,                 /* mov     x2, #0x9000000 */
  72     0x41, 0x00, 0x00, 0x39,                 /* strb    w1, [x2] */
  73     0xfd, 0xff, 0xff, 0x17,                 /* b       -12 (loop) */
  74 };
  75
  76 static const uint8_t kernel_nrf51[] = {
  77     0x00, 0x00, 0x00, 0x00,                 /* Stack top address */
  78     0x09, 0x00, 0x00, 0x00,                 /* Reset handler address */
  79     0x04, 0x4a,                             /* ldr  r2, [pc, #16] Get ENABLE */
  80     0x04, 0x21,                             /* movs r1, #4 */
  81     0x11, 0x60,                             /* str  r1, [r2] */
  82     0x04, 0x4a,                             /* ldr  r2, [pc, #16] Get STARTTX */
  83     0x01, 0x21,                             /* movs r1, #1 */
  84     0x11, 0x60,                             /* str  r1, [r2] */
  85     0x03, 0x4a,                             /* ldr  r2, [pc, #12] Get TXD */
  86     0x54, 0x21,                             /* movs r1, 'T' */
  87     0x11, 0x60,                             /* str  r1, [r2] */
  88     0xfe, 0xe7,                             /* b    . */
  89     0x00, 0x25, 0x00, 0x40,                 /* 0x40002500 = UART ENABLE */
  90     0x08, 0x20, 0x00, 0x40,                 /* 0x40002008 = UART STARTTX */
  91     0x1c, 0x25, 0x00, 0x40                  /* 0x4000251c = UART TXD */
  92 };
  93
  94 typedef struct testdef {
  95     const char *arch;       /* Target architecture */
  96     const char *machine;    /* Name of the machine */
  97     const char *extra;      /* Additional parameters */
  98     const char *expect;     /* Expected string in the serial output */
  99     size_t codesize;        /* Size of the kernel or bios data */
 100     const uint8_t *kernel;  /* Set in case we use our own mini kernel */
 101     const uint8_t *bios;    /* Set in case we use our own mini bios */
 102 } testdef_t;
 103
 104 static testdef_t tests[] = {
 105     { "alpha", "clipper", "", "PCI:" },
 106     { "ppc", "ppce500", "", "U-Boot" },
 107     { "ppc", "40p", "-vga none -boot d", "Trying cd:," },
 108     { "ppc", "g3beige", "", "PowerPC,750" },
 109     { "ppc", "mac99", "", "PowerPC,G4" },
 110     { "ppc", "sam460ex", "-m 256", "DRAM:  256 MiB" },
 111     { "ppc64", "ppce500", "", "U-Boot" },
 112     { "ppc64", "40p", "-m 192", "Memory: 192M" },
 113     { "ppc64", "mac99", "", "PowerPC,970FX" },
 114     { "ppc64", "pseries",
 115       "-machine cap-cfpc=broken,cap-sbbc=broken,cap-ibs=broken",
 116       "Open Firmware" },
 117     { "ppc64", "powernv8", "", "OPAL" },
 118     { "ppc64", "powernv9", "", "OPAL" },
 119     { "ppc64", "sam460ex", "-device e1000", "8086  100e" },
 120     { "i386", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
 121     { "i386", "pc", "-device sga", "SGABIOS" },
 122     { "i386", "q35", "-device sga", "SGABIOS" },
 123     { "x86_64", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
 124     { "x86_64", "q35", "-device sga", "SGABIOS" },
 125     { "sparc", "LX", "", "TMS390S10" },
 126     { "sparc", "SS-4", "", "MB86904" },
 127     { "sparc", "SS-600MP", "", "TMS390Z55" },
 128     { "sparc64", "sun4u", "", "UltraSPARC" },
 129     { "s390x", "s390-ccw-virtio", "", "device" },
 130     { "m68k", "mcf5208evb", "", "TT", sizeof(kernel_mcf5208), kernel_mcf5208 },
 131     { "m68k", "next-cube", "", "TT", sizeof(bios_nextcube), 0, bios_nextcube },
 132     { "microblaze", "petalogix-s3adsp1800", "", "TT",
 133       sizeof(kernel_pls3adsp1800), kernel_pls3adsp1800 },
 134     { "microblazeel", "petalogix-ml605", "", "TT",
 135       sizeof(kernel_plml605), kernel_plml605 },
 136     { "moxie", "moxiesim", "", "TT", sizeof(bios_moxiesim), 0, bios_moxiesim },
 137     { "arm", "raspi2", "", "TT", sizeof(bios_raspi2), 0, bios_raspi2 },
 138     { "hppa", "hppa", "", "SeaBIOS wants SYSTEM HALT" },
 139     { "aarch64", "virt", "-cpu cortex-a57", "TT", sizeof(kernel_aarch64),
 140       kernel_aarch64 },
 141     { "arm", "microbit", "", "T", sizeof(kernel_nrf51), kernel_nrf51 },
 142
 143     { NULL }
 144 };
 145
 146 static bool check_guest_output(QTestState *qts, const testdef_t *test, int fd)
 147 {
 148     int nbr = 0, pos = 0, ccnt;
 149     time_t now, start = time(NULL);
 150     char ch;
 151
 152     /* Poll serial output... */
 153     while (1) {
 154         ccnt = 0;
 155         while (ccnt++ < 512 && (nbr = read(fd, &ch, 1)) == 1) {
 156             if (ch == test->expect[pos]) {
 157                 pos += 1;
 158                 if (test->expect[pos] == '\0') {
 159                     /* We've reached the end of the expected string! */
 160                     return true;
 161                 }
 162             } else {
 163                 pos = 0;
 164             }
 165         }
 166         g_assert(nbr >= 0);
 167         /* Wait only if the child is still alive.  */
 168         if (!qtest_probe_child(qts)) {
 169             break;
 170         }
 171         /* Wait at most 360 seconds.  */
 172         now = time(NULL);
 173         if (now - start >= 360) {
 174             break;
 175         }
 176         g_usleep(10000);
 177     }
 178
 179     return false;
 180 }
 181
 182 static void test_machine(const void *data)
 183 {
 184     const testdef_t *test = data;
 185     char serialtmp[] = "/tmp/qtest-boot-serial-sXXXXXX";
 186     char codetmp[] = "/tmp/qtest-boot-serial-cXXXXXX";
 187     const char *codeparam = "";
 188     const uint8_t *code = NULL;
 189     QTestState *qts;
 190     int ser_fd;
 191
 192     ser_fd = mkstemp(serialtmp);
 193     g_assert(ser_fd != -1);
 194
 195     if (test->kernel) {
 196         code = test->kernel;
 197         codeparam = "-kernel";
 198     } else if (test->bios) {
 199         code = test->bios;
 200         codeparam = "-bios";
 201     }
 202
 203     if (code) {
 204         ssize_t wlen;
 205         int code_fd;
 206
 207         code_fd = mkstemp(codetmp);
 208         g_assert(code_fd != -1);
 209         wlen = write(code_fd, code, test->codesize);
 210         g_assert(wlen == test->codesize);
 211         close(code_fd);
 212     }
 213
 214     /*
 215      * Make sure that this test uses tcg if available: It is used as a
 216      * fast-enough smoketest for that.
 217      */
 218     qts = qtest_initf("%s %s -M %s -no-shutdown "
 219                       "-chardev file,id=serial0,path=%s "
 220                       "-serial chardev:serial0 -accel tcg -accel kvm %s",
 221                       codeparam, code ? codetmp : "", test->machine,
 222                       serialtmp, test->extra);
 223     if (code) {
 224         unlink(codetmp);
 225     }
 226
 227     if (!check_guest_output(qts, test, ser_fd)) {
 228         g_error("Failed to find expected string. Please check '%s'",
 229                 serialtmp);
 230     }
 231     unlink(serialtmp);
 232
 233     qtest_quit(qts);
 234
 235     close(ser_fd);
 236 }
 237
 238 int main(int argc, char *argv[])
 239 {
 240     const char *arch = qtest_get_arch();
 241     int i;
 242
 243     g_test_init(&argc, &argv, NULL);
 244
 245     for (i = 0; tests[i].arch != NULL; i++) {
 246         if (strcmp(arch, tests[i].arch) == 0) {
 247             char *name = g_strdup_printf("boot-serial/%s", tests[i].machine);
 248             qtest_add_data_func(name, &tests[i], test_machine);
 249             g_free(name);
 250         }
 251     }
 252
 253     return g_test_run();
 254 }