X-Git-Url: https://repo.jachan.dev/qemu.git/blobdiff_plain/c7f0f3b1c826901358a0656f80a5fabb88f73c61..43526ec8d1395fe4efbed15e9764b64641b95bcc:/qtest.c diff --git a/qtest.c b/qtest.c index 46ebda1a35..07a96120dc 100644 --- a/qtest.c +++ b/qtest.c @@ -11,27 +11,30 @@ * */ -#include "qtest.h" -#include "qemu-char.h" -#include "ioport.h" -#include "memory.h" +#include "sysemu/qtest.h" +#include "hw/qdev.h" +#include "sysemu/char.h" +#include "exec/ioport.h" +#include "exec/memory.h" #include "hw/irq.h" -#include "sysemu.h" +#include "sysemu/sysemu.h" +#include "sysemu/cpus.h" #define MAX_IRQ 256 const char *qtest_chrdev; const char *qtest_log; -int qtest_allowed = 0; +bool qtest_allowed; +static DeviceState *irq_intercept_dev; static FILE *qtest_log_fp; static CharDriverState *qtest_chr; static GString *inbuf; static int irq_levels[MAX_IRQ]; -static struct timeval start_time; +static qemu_timeval start_time; static bool qtest_opened; -#define FMT_timeval "%" PRId64 ".%06" PRId64 +#define FMT_timeval "%ld.%06ld" /** * QTest Protocol @@ -42,6 +45,30 @@ static bool qtest_opened; * * Valid requests * + * Clock management: + * + * The qtest client is completely in charge of the vm_clock. qtest commands + * let you adjust the value of the clock (monotonically). All the commands + * return the current value of the clock in nanoseconds. + * + * > clock_step + * < OK VALUE + * + * Advance the clock to the next deadline. Useful when waiting for + * asynchronous events. + * + * > clock_step NS + * < OK VALUE + * + * Advance the clock by NS nanoseconds. + * + * > clock_set NS + * < OK VALUE + * + * Advance the clock to NS nanoseconds (do nothing if it's already past). + * + * PIO and memory access: + * * > outb ADDR VALUE * < OK * @@ -60,24 +87,60 @@ static bool qtest_opened; * > inl ADDR * < OK VALUE * + * > writeb ADDR VALUE + * < OK + * + * > writew ADDR VALUE + * < OK + * + * > writel ADDR VALUE + * < OK + * + * > writeq ADDR VALUE + * < OK + * + * > readb ADDR + * < OK VALUE + * + * > readw ADDR + * < OK VALUE + * + * > readl ADDR + * < OK VALUE + * + * > readq ADDR + * < OK VALUE + * * > read ADDR SIZE * < OK DATA * * > write ADDR SIZE DATA * < OK * - * Valid async messages: - * - * IRQ raise NUM - * IRQ lower NUM - * * ADDR, SIZE, VALUE are all integers parsed with strtoul() with a base of 0. * * DATA is an arbitrarily long hex number prefixed with '0x'. If it's smaller * than the expected size, the value will be zero filled at the end of the data * sequence. * - * NUM is an IRQ number. + * IRQ management: + * + * > irq_intercept_in QOM-PATH + * < OK + * + * > irq_intercept_out QOM-PATH + * < OK + * + * Attach to the gpio-in (resp. gpio-out) pins exported by the device at + * QOM-PATH. When the pin is triggered, one of the following async messages + * will be printed to the qtest stream: + * + * IRQ raise NUM + * IRQ lower NUM + * + * where NUM is an IRQ number. For the PC, interrupts can be intercepted + * simply with "irq_intercept_in ioapic" (note that IRQ0 comes out with + * NUM=0 even though it is remapped to GSI 2). */ static int hex2nib(char ch) @@ -93,9 +156,9 @@ static int hex2nib(char ch) } } -static void qtest_get_time(struct timeval *tv) +static void qtest_get_time(qemu_timeval *tv) { - gettimeofday(tv, NULL); + qemu_gettimeofday(tv); tv->tv_sec -= start_time.tv_sec; tv->tv_usec -= start_time.tv_usec; if (tv->tv_usec < 0) { @@ -106,7 +169,7 @@ static void qtest_get_time(struct timeval *tv) static void qtest_send_prefix(CharDriverState *chr) { - struct timeval tv; + qemu_timeval tv; if (!qtest_log_fp || !qtest_opened) { return; @@ -114,10 +177,11 @@ static void qtest_send_prefix(CharDriverState *chr) qtest_get_time(&tv); fprintf(qtest_log_fp, "[S +" FMT_timeval "] ", - tv.tv_sec, tv.tv_usec); + tv.tv_sec, (long) tv.tv_usec); } -static void qtest_send(CharDriverState *chr, const char *fmt, ...) +static void GCC_FMT_ATTR(2, 3) qtest_send(CharDriverState *chr, + const char *fmt, ...) { va_list ap; char buffer[1024]; @@ -127,12 +191,26 @@ static void qtest_send(CharDriverState *chr, const char *fmt, ...) len = vsnprintf(buffer, sizeof(buffer), fmt, ap); va_end(ap); - qemu_chr_fe_write(chr, (uint8_t *)buffer, len); + qemu_chr_fe_write_all(chr, (uint8_t *)buffer, len); if (qtest_log_fp && qtest_opened) { fprintf(qtest_log_fp, "%s", buffer); } } +static void qtest_irq_handler(void *opaque, int n, int level) +{ + qemu_irq *old_irqs = opaque; + qemu_set_irq(old_irqs[n], level); + + if (irq_levels[n] != level) { + CharDriverState *chr = qtest_chr; + irq_levels[n] = level; + qtest_send_prefix(chr); + qtest_send(chr, "IRQ %s %d\n", + level ? "raise" : "lower", n); + } +} + static void qtest_process_command(CharDriverState *chr, gchar **words) { const gchar *command; @@ -142,12 +220,12 @@ static void qtest_process_command(CharDriverState *chr, gchar **words) command = words[0]; if (qtest_log_fp) { - struct timeval tv; + qemu_timeval tv; int i; qtest_get_time(&tv); fprintf(qtest_log_fp, "[R +" FMT_timeval "]", - tv.tv_sec, tv.tv_usec); + tv.tv_sec, (long) tv.tv_usec); for (i = 0; words[i]; i++) { fprintf(qtest_log_fp, " %s", words[i]); } @@ -155,15 +233,46 @@ static void qtest_process_command(CharDriverState *chr, gchar **words) } g_assert(command); - if (strcmp(words[0], "outb") == 0 || - strcmp(words[0], "outw") == 0 || - strcmp(words[0], "outl") == 0) { + if (strcmp(words[0], "irq_intercept_out") == 0 + || strcmp(words[0], "irq_intercept_in") == 0) { + DeviceState *dev; + + g_assert(words[1]); + dev = DEVICE(object_resolve_path(words[1], NULL)); + if (!dev) { + qtest_send_prefix(chr); + qtest_send(chr, "FAIL Unknown device\n"); + return; + } + + if (irq_intercept_dev) { + qtest_send_prefix(chr); + if (irq_intercept_dev != dev) { + qtest_send(chr, "FAIL IRQ intercept already enabled\n"); + } else { + qtest_send(chr, "OK\n"); + } + return; + } + + if (words[0][14] == 'o') { + qemu_irq_intercept_out(&dev->gpio_out, qtest_irq_handler, dev->num_gpio_out); + } else { + qemu_irq_intercept_in(dev->gpio_in, qtest_irq_handler, dev->num_gpio_in); + } + irq_intercept_dev = dev; + qtest_send_prefix(chr); + qtest_send(chr, "OK\n"); + + } else if (strcmp(words[0], "outb") == 0 || + strcmp(words[0], "outw") == 0 || + strcmp(words[0], "outl") == 0) { uint16_t addr; uint32_t value; g_assert(words[1] && words[2]); - addr = strtol(words[1], NULL, 0); - value = strtol(words[2], NULL, 0); + addr = strtoul(words[1], NULL, 0); + value = strtoul(words[2], NULL, 0); if (words[0][3] == 'b') { cpu_outb(addr, value); @@ -181,7 +290,7 @@ static void qtest_process_command(CharDriverState *chr, gchar **words) uint32_t value = -1U; g_assert(words[1]); - addr = strtol(words[1], NULL, 0); + addr = strtoul(words[1], NULL, 0); if (words[0][2] == 'b') { value = cpu_inb(addr); @@ -192,13 +301,70 @@ static void qtest_process_command(CharDriverState *chr, gchar **words) } qtest_send_prefix(chr); qtest_send(chr, "OK 0x%04x\n", value); + } else if (strcmp(words[0], "writeb") == 0 || + strcmp(words[0], "writew") == 0 || + strcmp(words[0], "writel") == 0 || + strcmp(words[0], "writeq") == 0) { + uint64_t addr; + uint64_t value; + + g_assert(words[1] && words[2]); + addr = strtoull(words[1], NULL, 0); + value = strtoull(words[2], NULL, 0); + + if (words[0][5] == 'b') { + uint8_t data = value; + cpu_physical_memory_write(addr, &data, 1); + } else if (words[0][5] == 'w') { + uint16_t data = value; + tswap16s(&data); + cpu_physical_memory_write(addr, &data, 2); + } else if (words[0][5] == 'l') { + uint32_t data = value; + tswap32s(&data); + cpu_physical_memory_write(addr, &data, 4); + } else if (words[0][5] == 'q') { + uint64_t data = value; + tswap64s(&data); + cpu_physical_memory_write(addr, &data, 8); + } + qtest_send_prefix(chr); + qtest_send(chr, "OK\n"); + } else if (strcmp(words[0], "readb") == 0 || + strcmp(words[0], "readw") == 0 || + strcmp(words[0], "readl") == 0 || + strcmp(words[0], "readq") == 0) { + uint64_t addr; + uint64_t value = UINT64_C(-1); + + g_assert(words[1]); + addr = strtoull(words[1], NULL, 0); + + if (words[0][4] == 'b') { + uint8_t data; + cpu_physical_memory_read(addr, &data, 1); + value = data; + } else if (words[0][4] == 'w') { + uint16_t data; + cpu_physical_memory_read(addr, &data, 2); + value = tswap16(data); + } else if (words[0][4] == 'l') { + uint32_t data; + cpu_physical_memory_read(addr, &data, 4); + value = tswap32(data); + } else if (words[0][4] == 'q') { + cpu_physical_memory_read(addr, &value, 8); + tswap64s(&value); + } + qtest_send_prefix(chr); + qtest_send(chr, "OK 0x%016" PRIx64 "\n", value); } else if (strcmp(words[0], "read") == 0) { uint64_t addr, len, i; uint8_t *data; g_assert(words[1] && words[2]); - addr = strtoul(words[1], NULL, 0); - len = strtoul(words[2], NULL, 0); + addr = strtoull(words[1], NULL, 0); + len = strtoull(words[2], NULL, 0); data = g_malloc(len); cpu_physical_memory_read(addr, data, len); @@ -217,8 +383,8 @@ static void qtest_process_command(CharDriverState *chr, gchar **words) size_t data_len; g_assert(words[1] && words[2] && words[3]); - addr = strtoul(words[1], NULL, 0); - len = strtoul(words[2], NULL, 0); + addr = strtoull(words[1], NULL, 0); + len = strtoull(words[2], NULL, 0); data_len = strlen(words[3]); if (data_len < 3) { @@ -240,6 +406,25 @@ static void qtest_process_command(CharDriverState *chr, gchar **words) qtest_send_prefix(chr); qtest_send(chr, "OK\n"); + } else if (strcmp(words[0], "clock_step") == 0) { + int64_t ns; + + if (words[1]) { + ns = strtoll(words[1], NULL, 0); + } else { + ns = qemu_clock_deadline(vm_clock); + } + qtest_clock_warp(qemu_get_clock_ns(vm_clock) + ns); + qtest_send_prefix(chr); + qtest_send(chr, "OK %"PRIi64"\n", (int64_t)qemu_get_clock_ns(vm_clock)); + } else if (strcmp(words[0], "clock_set") == 0) { + int64_t ns; + + g_assert(words[1]); + ns = strtoll(words[1], NULL, 0); + qtest_clock_warp(ns); + qtest_send_prefix(chr); + qtest_send(chr, "OK %"PRIi64"\n", (int64_t)qemu_get_clock_ns(vm_clock)); } else { qtest_send_prefix(chr); qtest_send(chr, "FAIL Unknown command `%s'\n", words[0]); @@ -291,20 +476,20 @@ static void qtest_event(void *opaque, int event) for (i = 0; i < ARRAY_SIZE(irq_levels); i++) { irq_levels[i] = 0; } - gettimeofday(&start_time, NULL); + qemu_gettimeofday(&start_time); qtest_opened = true; if (qtest_log_fp) { fprintf(qtest_log_fp, "[I " FMT_timeval "] OPENED\n", - start_time.tv_sec, start_time.tv_usec); + start_time.tv_sec, (long) start_time.tv_usec); } break; case CHR_EVENT_CLOSED: qtest_opened = false; if (qtest_log_fp) { - struct timeval tv; + qemu_timeval tv; qtest_get_time(&tv); fprintf(qtest_log_fp, "[I +" FMT_timeval "] CLOSED\n", - tv.tv_sec, tv.tv_usec); + tv.tv_sec, (long) tv.tv_usec); } break; default: @@ -312,27 +497,13 @@ static void qtest_event(void *opaque, int event) } } -static void qtest_set_irq(void *opaque, int irq, int level) -{ - CharDriverState *chr = qtest_chr; - bool changed; - - changed = (irq_levels[irq] != level); - irq_levels[irq] = level; - - if (changed) { - qtest_send_prefix(chr); - qtest_send(chr, "IRQ %s %d\n", - level ? "raise" : "lower", irq); - } -} - int qtest_init(void) { CharDriverState *chr; g_assert(qtest_chrdev != NULL); + configure_icount("0"); chr = qemu_chr_new("qtest", qtest_chrdev, NULL); qemu_chr_add_handlers(chr, qtest_can_read, qtest_read, qtest_event, chr);