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 /* For hppa, force bios to output to serial by disabling graphics. */ 139 { "hppa", "hppa", "-vga none", "SeaBIOS wants SYSTEM HALT" }, 140 { "aarch64", "virt", "-cpu cortex-a57", "TT", sizeof(kernel_aarch64), 141 kernel_aarch64 }, 142 { "arm", "microbit", "", "T", sizeof(kernel_nrf51), kernel_nrf51 }, 143 144 { NULL } 145 }; 146 147 static bool check_guest_output(QTestState *qts, const testdef_t *test, int fd) 148 { 149 int nbr = 0, pos = 0, ccnt; 150 time_t now, start = time(NULL); 151 char ch; 152 153 /* Poll serial output... */ 154 while (1) { 155 ccnt = 0; 156 while (ccnt++ < 512 && (nbr = read(fd, &ch, 1)) == 1) { 157 if (ch == test->expect[pos]) { 158 pos += 1; 159 if (test->expect[pos] == '\0') { 160 /* We've reached the end of the expected string! */ 161 return true; 162 } 163 } else { 164 pos = 0; 165 } 166 } 167 g_assert(nbr >= 0); 168 /* Wait only if the child is still alive. */ 169 if (!qtest_probe_child(qts)) { 170 break; 171 } 172 /* Wait at most 360 seconds. */ 173 now = time(NULL); 174 if (now - start >= 360) { 175 break; 176 } 177 g_usleep(10000); 178 } 179 180 return false; 181 } 182 183 static void test_machine(const void *data) 184 { 185 const testdef_t *test = data; 186 char serialtmp[] = "/tmp/qtest-boot-serial-sXXXXXX"; 187 char codetmp[] = "/tmp/qtest-boot-serial-cXXXXXX"; 188 const char *codeparam = ""; 189 const uint8_t *code = NULL; 190 QTestState *qts; 191 int ser_fd; 192 193 ser_fd = mkstemp(serialtmp); 194 g_assert(ser_fd != -1); 195 196 if (test->kernel) { 197 code = test->kernel; 198 codeparam = "-kernel"; 199 } else if (test->bios) { 200 code = test->bios; 201 codeparam = "-bios"; 202 } 203 204 if (code) { 205 ssize_t wlen; 206 int code_fd; 207 208 code_fd = mkstemp(codetmp); 209 g_assert(code_fd != -1); 210 wlen = write(code_fd, code, test->codesize); 211 g_assert(wlen == test->codesize); 212 close(code_fd); 213 } 214 215 /* 216 * Make sure that this test uses tcg if available: It is used as a 217 * fast-enough smoketest for that. 218 */ 219 qts = qtest_initf("%s %s -M %s -no-shutdown " 220 "-chardev file,id=serial0,path=%s " 221 "-serial chardev:serial0 -accel tcg -accel kvm %s", 222 codeparam, code ? codetmp : "", test->machine, 223 serialtmp, test->extra); 224 if (code) { 225 unlink(codetmp); 226 } 227 228 if (!check_guest_output(qts, test, ser_fd)) { 229 g_error("Failed to find expected string. Please check '%s'", 230 serialtmp); 231 } 232 unlink(serialtmp); 233 234 qtest_quit(qts); 235 236 close(ser_fd); 237 } 238 239 int main(int argc, char *argv[]) 240 { 241 const char *arch = qtest_get_arch(); 242 int i; 243 244 g_test_init(&argc, &argv, NULL); 245 246 for (i = 0; tests[i].arch != NULL; i++) { 247 if (strcmp(arch, tests[i].arch) == 0) { 248 char *name = g_strdup_printf("boot-serial/%s", tests[i].machine); 249 qtest_add_data_func(name, &tests[i], test_machine); 250 g_free(name); 251 } 252 } 253 254 return g_test_run(); 255 } 256