/* * Test serial output of some machines. * * Copyright 2016 Thomas Huth, Red Hat Inc. * * This work is licensed under the terms of the GNU GPL, version 2 * or later. See the COPYING file in the top-level directory. * * This test is used to check that the serial output of the firmware * (that we provide for some machines) or some small mini-kernels that * we provide here contains an expected string. Thus we check that the * firmware/kernel still boots at least to a certain point and so we * know that the machine is not completely broken. */ #include "qemu/osdep.h" #include "libqtest.h" static const uint8_t kernel_mcf5208[] = { 0x41, 0xf9, 0xfc, 0x06, 0x00, 0x00, /* lea 0xfc060000,%a0 */ 0x10, 0x3c, 0x00, 0x54, /* move.b #'T',%d0 */ 0x11, 0x7c, 0x00, 0x04, 0x00, 0x08, /* move.b #4,8(%a0) Enable TX */ 0x11, 0x40, 0x00, 0x0c, /* move.b %d0,12(%a0) Print 'T' */ 0x60, 0xfa /* bra.s loop */ }; static const uint8_t kernel_pls3adsp1800[] = { 0xb0, 0x00, 0x84, 0x00, /* imm 0x8400 */ 0x30, 0x60, 0x00, 0x04, /* addik r3,r0,4 */ 0x30, 0x80, 0x00, 0x54, /* addik r4,r0,'T' */ 0xf0, 0x83, 0x00, 0x00, /* sbi r4,r3,0 */ 0xb8, 0x00, 0xff, 0xfc /* bri -4 loop */ }; static const uint8_t kernel_plml605[] = { 0xe0, 0x83, 0x00, 0xb0, /* imm 0x83e0 */ 0x00, 0x10, 0x60, 0x30, /* addik r3,r0,0x1000 */ 0x54, 0x00, 0x80, 0x30, /* addik r4,r0,'T' */ 0x00, 0x00, 0x83, 0xf0, /* sbi r4,r3,0 */ 0xfc, 0xff, 0x00, 0xb8 /* bri -4 loop */ }; static const uint8_t bios_moxiesim[] = { 0x20, 0x10, 0x00, 0x00, 0x03, 0xf8, /* ldi.s r1,0x3f8 */ 0x1b, 0x20, 0x00, 0x00, 0x00, 0x54, /* ldi.b r2,'T' */ 0x1e, 0x12, /* st.b r1,r2 */ 0x1a, 0x00, 0x00, 0x00, 0x10, 0x00 /* jmpa 0x1000 */ }; static const uint8_t bios_raspi2[] = { 0x08, 0x30, 0x9f, 0xe5, /* ldr r3,[pc,#8] Get base */ 0x54, 0x20, 0xa0, 0xe3, /* mov r2,#'T' */ 0x00, 0x20, 0xc3, 0xe5, /* strb r2,[r3] */ 0xfb, 0xff, 0xff, 0xea, /* b loop */ 0x00, 0x10, 0x20, 0x3f, /* 0x3f201000 = UART0 base addr */ }; static const uint8_t kernel_aarch64[] = { 0x81, 0x0a, 0x80, 0x52, /* mov w1, #0x54 */ 0x02, 0x20, 0xa1, 0xd2, /* mov x2, #0x9000000 */ 0x41, 0x00, 0x00, 0x39, /* strb w1, [x2] */ 0xfd, 0xff, 0xff, 0x17, /* b -12 (loop) */ }; static const uint8_t kernel_nrf51[] = { 0x00, 0x00, 0x00, 0x00, /* Stack top address */ 0x09, 0x00, 0x00, 0x00, /* Reset handler address */ 0x04, 0x4a, /* ldr r2, [pc, #16] Get ENABLE */ 0x04, 0x21, /* movs r1, #4 */ 0x11, 0x60, /* str r1, [r2] */ 0x04, 0x4a, /* ldr r2, [pc, #16] Get STARTTX */ 0x01, 0x21, /* movs r1, #1 */ 0x11, 0x60, /* str r1, [r2] */ 0x03, 0x4a, /* ldr r2, [pc, #12] Get TXD */ 0x54, 0x21, /* movs r1, 'T' */ 0x11, 0x60, /* str r1, [r2] */ 0xfe, 0xe7, /* b . */ 0x00, 0x25, 0x00, 0x40, /* 0x40002500 = UART ENABLE */ 0x08, 0x20, 0x00, 0x40, /* 0x40002008 = UART STARTTX */ 0x1c, 0x25, 0x00, 0x40 /* 0x4000251c = UART TXD */ }; typedef struct testdef { const char *arch; /* Target architecture */ const char *machine; /* Name of the machine */ const char *extra; /* Additional parameters */ const char *expect; /* Expected string in the serial output */ size_t codesize; /* Size of the kernel or bios data */ const uint8_t *kernel; /* Set in case we use our own mini kernel */ const uint8_t *bios; /* Set in case we use our own mini bios */ } testdef_t; static testdef_t tests[] = { { "alpha", "clipper", "", "PCI:" }, { "ppc", "ppce500", "", "U-Boot" }, { "ppc", "40p", "-vga none -boot d", "Trying cd:," }, { "ppc", "g3beige", "", "PowerPC,750" }, { "ppc", "mac99", "", "PowerPC,G4" }, { "ppc", "sam460ex", "-m 256", "DRAM: 256 MiB" }, { "ppc64", "ppce500", "", "U-Boot" }, { "ppc64", "40p", "-m 192", "Memory: 192M" }, { "ppc64", "mac99", "", "PowerPC,970FX" }, { "ppc64", "pseries", "", "Open Firmware" }, { "ppc64", "powernv", "-cpu POWER8", "OPAL" }, { "ppc64", "sam460ex", "-device e1000", "8086 100e" }, { "i386", "isapc", "-cpu qemu32 -device sga", "SGABIOS" }, { "i386", "pc", "-device sga", "SGABIOS" }, { "i386", "q35", "-device sga", "SGABIOS" }, { "x86_64", "isapc", "-cpu qemu32 -device sga", "SGABIOS" }, { "x86_64", "q35", "-device sga", "SGABIOS" }, { "sparc", "LX", "", "TMS390S10" }, { "sparc", "SS-4", "", "MB86904" }, { "sparc", "SS-600MP", "", "TMS390Z55" }, { "sparc64", "sun4u", "", "UltraSPARC" }, { "s390x", "s390-ccw-virtio", "", "virtio device" }, { "m68k", "mcf5208evb", "", "TT", sizeof(kernel_mcf5208), kernel_mcf5208 }, { "microblaze", "petalogix-s3adsp1800", "", "TT", sizeof(kernel_pls3adsp1800), kernel_pls3adsp1800 }, { "microblazeel", "petalogix-ml605", "", "TT", sizeof(kernel_plml605), kernel_plml605 }, { "moxie", "moxiesim", "", "TT", sizeof(bios_moxiesim), 0, bios_moxiesim }, { "arm", "raspi2", "", "TT", sizeof(bios_raspi2), 0, bios_raspi2 }, { "hppa", "hppa", "", "SeaBIOS wants SYSTEM HALT" }, { "aarch64", "virt", "-cpu cortex-a57", "TT", sizeof(kernel_aarch64), kernel_aarch64 }, { "arm", "microbit", "", "T", sizeof(kernel_nrf51), kernel_nrf51 }, { NULL } }; static bool check_guest_output(QTestState *qts, const testdef_t *test, int fd) { int nbr = 0, pos = 0, ccnt; time_t now, start = time(NULL); char ch; /* Poll serial output... */ while (1) { ccnt = 0; while (ccnt++ < 512 && (nbr = read(fd, &ch, 1)) == 1) { if (ch == test->expect[pos]) { pos += 1; if (test->expect[pos] == '\0') { /* We've reached the end of the expected string! */ return true; } } else { pos = 0; } } g_assert(nbr >= 0); /* Wait only if the child is still alive. */ if (!qtest_probe_child(qts)) { break; } /* Wait at most 360 seconds. */ now = time(NULL); if (now - start >= 360) { break; } g_usleep(10000); } return false; } static void test_machine(const void *data) { const testdef_t *test = data; char serialtmp[] = "/tmp/qtest-boot-serial-sXXXXXX"; char codetmp[] = "/tmp/qtest-boot-serial-cXXXXXX"; const char *codeparam = ""; const uint8_t *code = NULL; QTestState *qts; int ser_fd; ser_fd = mkstemp(serialtmp); g_assert(ser_fd != -1); if (test->kernel) { code = test->kernel; codeparam = "-kernel"; } else if (test->bios) { code = test->bios; codeparam = "-bios"; } if (code) { ssize_t wlen; int code_fd; code_fd = mkstemp(codetmp); g_assert(code_fd != -1); wlen = write(code_fd, code, test->codesize); g_assert(wlen == test->codesize); close(code_fd); } /* * Make sure that this test uses tcg if available: It is used as a * fast-enough smoketest for that. */ qts = qtest_initf("%s %s -M %s,accel=tcg:kvm -no-shutdown " "-chardev file,id=serial0,path=%s " "-serial chardev:serial0 %s", codeparam, code ? codetmp : "", test->machine, serialtmp, test->extra); if (code) { unlink(codetmp); } if (!check_guest_output(qts, test, ser_fd)) { g_error("Failed to find expected string. Please check '%s'", serialtmp); } unlink(serialtmp); qtest_quit(qts); close(ser_fd); } int main(int argc, char *argv[]) { const char *arch = qtest_get_arch(); int i; g_test_init(&argc, &argv, NULL); for (i = 0; tests[i].arch != NULL; i++) { if (strcmp(arch, tests[i].arch) == 0) { char *name = g_strdup_printf("boot-serial/%s", tests[i].machine); qtest_add_data_func(name, &tests[i], test_machine); g_free(name); } } return g_test_run(); }