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 "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 static const uint8_t kernel_stm32vldiscovery[] = { 98 0x00, 0x00, 0x00, 0x00, /* Stack top address */ 99 0x1d, 0x00, 0x00, 0x00, /* Reset handler address */ 100 0x00, 0x00, 0x00, 0x00, /* NMI */ 101 0x00, 0x00, 0x00, 0x00, /* Hard fault */ 102 0x00, 0x00, 0x00, 0x00, /* Memory management fault */ 103 0x00, 0x00, 0x00, 0x00, /* Bus fault */ 104 0x00, 0x00, 0x00, 0x00, /* Usage fault */ 105 0x0b, 0x4b, /* ldr r3, [pc, #44] Get RCC */ 106 0x44, 0xf2, 0x04, 0x02, /* movw r2, #16388 */ 107 0x1a, 0x60, /* str r2, [r3] */ 108 0x0a, 0x4b, /* ldr r3, [pc, #40] Get GPIOA */ 109 0x1a, 0x68, /* ldr r2, [r3] */ 110 0x22, 0xf0, 0xf0, 0x02, /* bic r2, r2, #240 */ 111 0x1a, 0x60, /* str r2, [r3] */ 112 0x1a, 0x68, /* ldr r2, [r3] */ 113 0x42, 0xf0, 0xb0, 0x02, /* orr r2, r2, #176 */ 114 0x1a, 0x60, /* str r2, [r3] */ 115 0x07, 0x4b, /* ldr r3, [pc, #26] Get BAUD */ 116 0x45, 0x22, /* movs r2, #69 */ 117 0x1a, 0x60, /* str r2, [r3] */ 118 0x06, 0x4b, /* ldr r3, [pc, #24] Get ENABLE */ 119 0x42, 0xf2, 0x08, 0x02, /* movw r2, #8200 */ 120 0x1a, 0x60, /* str r2, [r3] */ 121 0x05, 0x4b, /* ldr r3, [pc, #20] Get TXD */ 122 0x54, 0x22, /* movs r2, 'T' */ 123 0x1a, 0x60, /* str r2, [r3] */ 124 0xfe, 0xe7, /* b . */ 125 0x18, 0x10, 0x02, 0x40, /* 0x40021018 = RCC */ 126 0x04, 0x08, 0x01, 0x40, /* 0x40010804 = GPIOA */ 127 0x08, 0x38, 0x01, 0x40, /* 0x40013808 = USART1 BAUD */ 128 0x0c, 0x38, 0x01, 0x40, /* 0x4001380c = USART1 ENABLE */ 129 0x04, 0x38, 0x01, 0x40 /* 0x40013804 = USART1 TXD */ 130 }; 131 132 typedef struct testdef { 133 const char *arch; /* Target architecture */ 134 const char *machine; /* Name of the machine */ 135 const char *extra; /* Additional parameters */ 136 const char *expect; /* Expected string in the serial output */ 137 size_t codesize; /* Size of the kernel or bios data */ 138 const uint8_t *kernel; /* Set in case we use our own mini kernel */ 139 const uint8_t *bios; /* Set in case we use our own mini bios */ 140 } testdef_t; 141 142 static const testdef_t tests[] = { 143 { "alpha", "clipper", "", "PCI:" }, 144 { "avr", "arduino-duemilanove", "", "T", sizeof(bios_avr), NULL, bios_avr }, 145 { "avr", "arduino-mega-2560-v3", "", "T", sizeof(bios_avr), NULL, bios_avr}, 146 { "ppc", "ppce500", "", "U-Boot" }, 147 { "ppc", "40p", "-vga none -boot d", "Trying cd:," }, 148 { "ppc", "g3beige", "", "PowerPC,750" }, 149 { "ppc", "mac99", "", "PowerPC,G4" }, 150 { "ppc", "sam460ex", "-m 256", "DRAM: 256 MiB" }, 151 { "ppc64", "ppce500", "", "U-Boot" }, 152 { "ppc64", "40p", "-m 192", "Memory: 192M" }, 153 { "ppc64", "mac99", "", "PowerPC,970FX" }, 154 { "ppc64", "pseries", 155 "-machine " PSERIES_DEFAULT_CAPABILITIES, 156 "Open Firmware" }, 157 { "ppc64", "powernv8", "", "OPAL" }, 158 { "ppc64", "powernv9", "", "OPAL" }, 159 { "ppc64", "sam460ex", "-device e1000", "8086 100e" }, 160 { "i386", "isapc", "-cpu qemu32 -M graphics=off", "SeaBIOS" }, 161 { "i386", "pc", "-M graphics=off", "SeaBIOS" }, 162 { "i386", "q35", "-M graphics=off", "SeaBIOS" }, 163 { "x86_64", "isapc", "-cpu qemu32 -M graphics=off", "SeaBIOS" }, 164 { "x86_64", "q35", "-M graphics=off", "SeaBIOS" }, 165 { "sparc", "LX", "", "TMS390S10" }, 166 { "sparc", "SS-4", "", "MB86904" }, 167 { "sparc", "SS-600MP", "", "TMS390Z55" }, 168 { "sparc64", "sun4u", "", "UltraSPARC" }, 169 { "s390x", "s390-ccw-virtio", "", "device" }, 170 { "m68k", "mcf5208evb", "", "TT", sizeof(kernel_mcf5208), kernel_mcf5208 }, 171 { "m68k", "next-cube", "", "TT", sizeof(bios_nextcube), 0, bios_nextcube }, 172 { "microblaze", "petalogix-s3adsp1800", "", "TT", 173 sizeof(kernel_pls3adsp1800), kernel_pls3adsp1800 }, 174 { "microblazeel", "petalogix-ml605", "", "TT", 175 sizeof(kernel_plml605), kernel_plml605 }, 176 { "arm", "raspi2b", "", "TT", sizeof(bios_raspi2), 0, bios_raspi2 }, 177 /* For hppa, force bios to output to serial by disabling graphics. */ 178 { "hppa", "hppa", "-vga none", "SeaBIOS wants SYSTEM HALT" }, 179 { "aarch64", "virt", "-cpu max", "TT", sizeof(kernel_aarch64), 180 kernel_aarch64 }, 181 { "arm", "microbit", "", "T", sizeof(kernel_nrf51), kernel_nrf51 }, 182 { "arm", "stm32vldiscovery", "", "T", 183 sizeof(kernel_stm32vldiscovery), kernel_stm32vldiscovery }, 184 185 { NULL } 186 }; 187 188 static bool check_guest_output(QTestState *qts, const testdef_t *test, int fd) 189 { 190 int nbr = 0, pos = 0, ccnt; 191 time_t now, start = time(NULL); 192 char ch; 193 194 /* Poll serial output... */ 195 while (1) { 196 ccnt = 0; 197 while (ccnt++ < 512 && (nbr = read(fd, &ch, 1)) == 1) { 198 if (ch == test->expect[pos]) { 199 pos += 1; 200 if (test->expect[pos] == '\0') { 201 /* We've reached the end of the expected string! */ 202 return true; 203 } 204 } else { 205 pos = 0; 206 } 207 } 208 g_assert(nbr >= 0); 209 /* Wait only if the child is still alive. */ 210 if (!qtest_probe_child(qts)) { 211 break; 212 } 213 /* Wait at most 360 seconds. */ 214 now = time(NULL); 215 if (now - start >= 360) { 216 break; 217 } 218 g_usleep(10000); 219 } 220 221 return false; 222 } 223 224 static void test_machine(const void *data) 225 { 226 const testdef_t *test = data; 227 g_autofree char *serialtmp = NULL; 228 g_autofree char *codetmp = NULL; 229 const char *codeparam = ""; 230 const uint8_t *code = NULL; 231 QTestState *qts; 232 int ser_fd; 233 234 ser_fd = g_file_open_tmp("qtest-boot-serial-sXXXXXX", &serialtmp, NULL); 235 g_assert(ser_fd != -1); 236 close(ser_fd); 237 238 if (test->kernel) { 239 code = test->kernel; 240 codeparam = "-kernel"; 241 } else if (test->bios) { 242 code = test->bios; 243 codeparam = "-bios"; 244 } 245 246 if (code) { 247 ssize_t wlen; 248 int code_fd; 249 250 code_fd = g_file_open_tmp("qtest-boot-serial-cXXXXXX", &codetmp, NULL); 251 g_assert(code_fd != -1); 252 wlen = write(code_fd, code, test->codesize); 253 g_assert(wlen == test->codesize); 254 close(code_fd); 255 } 256 257 /* 258 * Make sure that this test uses tcg if available: It is used as a 259 * fast-enough smoketest for that. 260 */ 261 qts = qtest_initf("%s %s -M %s -no-shutdown " 262 "-chardev file,id=serial0,path=%s " 263 "-serial chardev:serial0 -accel tcg -accel kvm %s", 264 codeparam, code ? codetmp : "", test->machine, 265 serialtmp, test->extra); 266 if (code) { 267 unlink(codetmp); 268 } 269 270 ser_fd = open(serialtmp, O_RDONLY); 271 g_assert(ser_fd != -1); 272 if (!check_guest_output(qts, test, ser_fd)) { 273 g_error("Failed to find expected string. Please check '%s'", 274 serialtmp); 275 } 276 unlink(serialtmp); 277 278 qtest_quit(qts); 279 280 close(ser_fd); 281 } 282 283 int main(int argc, char *argv[]) 284 { 285 const char *arch = qtest_get_arch(); 286 int i; 287 288 g_test_init(&argc, &argv, NULL); 289 290 if (!qtest_has_accel("tcg") && !qtest_has_accel("kvm")) { 291 g_test_skip("No KVM or TCG accelerator available"); 292 return 0; 293 } 294 295 for (i = 0; tests[i].arch != NULL; i++) { 296 if (g_str_equal(arch, tests[i].arch) && 297 qtest_has_machine(tests[i].machine)) { 298 char *name = g_strdup_printf("boot-serial/%s", tests[i].machine); 299 qtest_add_data_func(name, &tests[i], test_machine); 300 g_free(name); 301 } 302 } 303 304 return g_test_run(); 305 } 306