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 } 260