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 typedef struct testdef {
  59     const char *arch;       /* Target architecture */
  60     const char *machine;    /* Name of the machine */
  61     const char *extra;      /* Additional parameters */
  62     const char *expect;     /* Expected string in the serial output */
  63     size_t codesize;        /* Size of the kernel or bios data */
  64     const uint8_t *kernel;  /* Set in case we use our own mini kernel */
  65     const uint8_t *bios;    /* Set in case we use our own mini bios */
  66 } testdef_t;
  67
  68 static testdef_t tests[] = {
  69     { "alpha", "clipper", "", "PCI:" },
  70     { "ppc", "ppce500", "", "U-Boot" },
  71     { "ppc", "prep", "", "Open Hack'Ware BIOS" },
  72     { "ppc64", "ppce500", "", "U-Boot" },
  73     { "ppc64", "prep", "", "Open Hack'Ware BIOS" },
  74     { "ppc64", "pseries", "", "Open Firmware" },
  75     { "ppc64", "powernv", "-cpu POWER8", "OPAL" },
  76     { "i386", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
  77     { "i386", "pc", "-device sga", "SGABIOS" },
  78     { "i386", "q35", "-device sga", "SGABIOS" },
  79     { "x86_64", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
  80     { "x86_64", "q35", "-device sga", "SGABIOS" },
  81     { "s390x", "s390-ccw-virtio",
  82       "-nodefaults -device sclpconsole,chardev=serial0", "virtio device" },
  83     { "m68k", "mcf5208evb", "", "TT", sizeof(kernel_mcf5208), kernel_mcf5208 },
  84     { "microblaze", "petalogix-s3adsp1800", "", "TT",
  85       sizeof(kernel_pls3adsp1800), kernel_pls3adsp1800 },
  86     { "microblazeel", "petalogix-ml605", "", "TT",
  87       sizeof(kernel_plml605), kernel_plml605 },
  88     { "moxie", "moxiesim", "", "TT", sizeof(bios_moxiesim), 0, bios_moxiesim },
  89     { "arm", "raspi2", "", "TT", sizeof(bios_raspi2), 0, bios_raspi2 },
  90
  91     { NULL }
  92 };
  93
  94 static void check_guest_output(const testdef_t *test, int fd)
  95 {
  96     bool output_ok = false;
  97     int i, nbr, pos = 0, ccnt;
  98     char ch;
  99
 100     /* Poll serial output... Wait at most 60 seconds */
 101     for (i = 0; i < 6000; ++i) {
 102         ccnt = 0;
 103         while ((nbr = read(fd, &ch, 1)) == 1 && ccnt++ < 512) {
 104             if (ch == test->expect[pos]) {
 105                 pos += 1;
 106                 if (test->expect[pos] == '\0') {
 107                     /* We've reached the end of the expected string! */
 108                     output_ok = true;
 109                     goto done;
 110                 }
 111             } else {
 112                 pos = 0;
 113             }
 114         }
 115         g_assert(nbr >= 0);
 116         g_usleep(10000);
 117     }
 118
 119 done:
 120     g_assert(output_ok);
 121 }
 122
 123 static void test_machine(const void *data)
 124 {
 125     const testdef_t *test = data;
 126     char serialtmp[] = "/tmp/qtest-boot-serial-sXXXXXX";
 127     char codetmp[] = "/tmp/qtest-boot-serial-cXXXXXX";
 128     const char *codeparam = "";
 129     const uint8_t *code = NULL;
 130     int ser_fd;
 131
 132     ser_fd = mkstemp(serialtmp);
 133     g_assert(ser_fd != -1);
 134
 135     if (test->kernel) {
 136         code = test->kernel;
 137         codeparam = "-kernel";
 138     } else if (test->bios) {
 139         code = test->bios;
 140         codeparam = "-bios";
 141     }
 142
 143     if (code) {
 144         ssize_t wlen;
 145         int code_fd;
 146
 147         code_fd = mkstemp(codetmp);
 148         g_assert(code_fd != -1);
 149         wlen = write(code_fd, code, test->codesize);
 150         g_assert(wlen == test->codesize);
 151         close(code_fd);
 152     }
 153
 154     /*
 155      * Make sure that this test uses tcg if available: It is used as a
 156      * fast-enough smoketest for that.
 157      */
 158     global_qtest = qtest_startf("%s %s -M %s,accel=tcg:kvm "
 159                                 "-chardev file,id=serial0,path=%s "
 160                                 "-no-shutdown -serial chardev:serial0 %s",
 161                                 codeparam, code ? codetmp : "",
 162                                 test->machine, serialtmp, test->extra);
 163     unlink(serialtmp);
 164     if (code) {
 165         unlink(codetmp);
 166     }
 167
 168     check_guest_output(test, ser_fd);
 169     qtest_quit(global_qtest);
 170
 171     close(ser_fd);
 172 }
 173
 174 int main(int argc, char *argv[])
 175 {
 176     const char *arch = qtest_get_arch();
 177     int i;
 178
 179     g_test_init(&argc, &argv, NULL);
 180
 181     for (i = 0; tests[i].arch != NULL; i++) {
 182         if (strcmp(arch, tests[i].arch) == 0) {
 183             char *name = g_strdup_printf("boot-serial/%s", tests[i].machine);
 184             qtest_add_data_func(name, &tests[i], test_machine);
 185             g_free(name);
 186         }
 187     }
 188
 189     return g_test_run();
 190 }