diff options
| -rw-r--r-- | Makefile.objs | 2 | ||||
| -rw-r--r-- | cpu-exec.c | 1 | ||||
| -rw-r--r-- | cpus.c | 62 | ||||
| -rw-r--r-- | qemu-options.hx | 8 | ||||
| -rw-r--r-- | qtest.c | 354 | ||||
| -rw-r--r-- | qtest.h | 35 | ||||
| -rwxr-xr-x | scripts/qtest | 5 | ||||
| -rw-r--r-- | vl.c | 10 |
8 files changed, 473 insertions, 4 deletions
diff --git a/Makefile.objs b/Makefile.objs index 226b01df96..e9842b0538 100644 --- a/Makefile.objs +++ b/Makefile.objs @@ -322,6 +322,8 @@ hw-obj-$(CONFIG_DP8393X) += dp8393x.o hw-obj-$(CONFIG_DS1225Y) += ds1225y.o hw-obj-$(CONFIG_MIPSNET) += mipsnet.o +hw-obj-y += qtest.o + # Sound sound-obj-y = sound-obj-$(CONFIG_SB16) += sb16.o diff --git a/cpu-exec.c b/cpu-exec.c index 0fa8325b27..d153f978e1 100644 --- a/cpu-exec.c +++ b/cpu-exec.c @@ -21,6 +21,7 @@ #include "disas.h" #include "tcg.h" #include "qemu-barrier.h" +#include "qtest.h" int tb_invalidated_flag; @@ -741,6 +741,48 @@ static void *qemu_kvm_cpu_thread_fn(void *arg) return NULL; } +static void *qemu_dummy_cpu_thread_fn(void *arg) +{ +#ifdef _WIN32 + fprintf(stderr, "qtest is not supported under Windows\n"); + exit(1); +#else + CPUArchState *env = arg; + sigset_t waitset; + int r; + + qemu_mutex_lock_iothread(); + qemu_thread_get_self(env->thread); + env->thread_id = qemu_get_thread_id(); + + sigemptyset(&waitset); + sigaddset(&waitset, SIG_IPI); + + /* signal CPU creation */ + env->created = 1; + qemu_cond_signal(&qemu_cpu_cond); + + cpu_single_env = env; + while (1) { + cpu_single_env = NULL; + qemu_mutex_unlock_iothread(); + do { + int sig; + r = sigwait(&waitset, &sig); + } while (r == -1 && (errno == EAGAIN || errno == EINTR)); + if (r == -1) { + perror("sigwait"); + exit(1); + } + qemu_mutex_lock_iothread(); + cpu_single_env = env; + qemu_wait_io_event_common(env); + } + + return NULL; +#endif +} + static void tcg_exec_all(void); static void *qemu_tcg_cpu_thread_fn(void *arg) @@ -803,7 +845,7 @@ void qemu_cpu_kick(void *_env) CPUArchState *env = _env; qemu_cond_broadcast(env->halt_cond); - if (kvm_enabled() && !env->thread_kicked) { + if (!tcg_enabled() && !env->thread_kicked) { qemu_cpu_kick_thread(env); env->thread_kicked = true; } @@ -832,7 +874,7 @@ int qemu_cpu_is_self(void *_env) void qemu_mutex_lock_iothread(void) { - if (kvm_enabled()) { + if (!tcg_enabled()) { qemu_mutex_lock(&qemu_global_mutex); } else { iothread_requesting_mutex = true; @@ -947,6 +989,18 @@ static void qemu_kvm_start_vcpu(CPUArchState *env) } } +static void qemu_dummy_start_vcpu(CPUArchState *env) +{ + env->thread = g_malloc0(sizeof(QemuThread)); + env->halt_cond = g_malloc0(sizeof(QemuCond)); + qemu_cond_init(env->halt_cond); + qemu_thread_create(env->thread, qemu_dummy_cpu_thread_fn, env, + QEMU_THREAD_JOINABLE); + while (env->created == 0) { + qemu_cond_wait(&qemu_cpu_cond, &qemu_global_mutex); + } +} + void qemu_init_vcpu(void *_env) { CPUArchState *env = _env; @@ -956,8 +1010,10 @@ void qemu_init_vcpu(void *_env) env->stopped = 1; if (kvm_enabled()) { qemu_kvm_start_vcpu(env); - } else { + } else if (tcg_enabled()) { qemu_tcg_init_vcpu(env); + } else { + qemu_dummy_start_vcpu(env); } } diff --git a/qemu-options.hx b/qemu-options.hx index 662f571527..fe88939805 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -2715,6 +2715,14 @@ the @var{simple} tracing backend. @end table ETEXI +DEF("qtest", HAS_ARG, QEMU_OPTION_qtest, + "-qtest CHR specify tracing options\n", + QEMU_ARCH_ALL) + +DEF("qtest-log", HAS_ARG, QEMU_OPTION_qtest_log, + "-qtest-log LOG specify tracing options\n", + QEMU_ARCH_ALL) + HXCOMM This is the last statement. Insert new options before this line! STEXI @end table diff --git a/qtest.c b/qtest.c new file mode 100644 index 0000000000..46ebda1a35 --- /dev/null +++ b/qtest.c @@ -0,0 +1,354 @@ +/* + * Test Server + * + * Copyright IBM, Corp. 2011 + * + * Authors: + * Anthony Liguori <aliguori@us.ibm.com> + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#include "qtest.h" +#include "qemu-char.h" +#include "ioport.h" +#include "memory.h" +#include "hw/irq.h" +#include "sysemu.h" + +#define MAX_IRQ 256 + +const char *qtest_chrdev; +const char *qtest_log; +int qtest_allowed = 0; + +static FILE *qtest_log_fp; +static CharDriverState *qtest_chr; +static GString *inbuf; +static int irq_levels[MAX_IRQ]; +static struct timeval start_time; +static bool qtest_opened; + +#define FMT_timeval "%" PRId64 ".%06" PRId64 + +/** + * QTest Protocol + * + * Line based protocol, request/response based. Server can send async messages + * so clients should always handle many async messages before the response + * comes in. + * + * Valid requests + * + * > outb ADDR VALUE + * < OK + * + * > outw ADDR VALUE + * < OK + * + * > outl ADDR VALUE + * < OK + * + * > inb ADDR + * < OK VALUE + * + * > inw ADDR + * < OK VALUE + * + * > inl 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. + */ + +static int hex2nib(char ch) +{ + if (ch >= '0' && ch <= '9') { + return ch - '0'; + } else if (ch >= 'a' && ch <= 'f') { + return 10 + (ch - 'a'); + } else if (ch >= 'A' && ch <= 'F') { + return 10 + (ch - 'a'); + } else { + return -1; + } +} + +static void qtest_get_time(struct timeval *tv) +{ + gettimeofday(tv, NULL); + tv->tv_sec -= start_time.tv_sec; + tv->tv_usec -= start_time.tv_usec; + if (tv->tv_usec < 0) { + tv->tv_usec += 1000000; + tv->tv_sec -= 1; + } +} + +static void qtest_send_prefix(CharDriverState *chr) +{ + struct timeval tv; + + if (!qtest_log_fp || !qtest_opened) { + return; + } + + qtest_get_time(&tv); + fprintf(qtest_log_fp, "[S +" FMT_timeval "] ", + tv.tv_sec, tv.tv_usec); +} + +static void qtest_send(CharDriverState *chr, const char *fmt, ...) +{ + va_list ap; + char buffer[1024]; + size_t len; + + va_start(ap, fmt); + len = vsnprintf(buffer, sizeof(buffer), fmt, ap); + va_end(ap); + + qemu_chr_fe_write(chr, (uint8_t *)buffer, len); + if (qtest_log_fp && qtest_opened) { + fprintf(qtest_log_fp, "%s", buffer); + } +} + +static void qtest_process_command(CharDriverState *chr, gchar **words) +{ + const gchar *command; + + g_assert(words); + + command = words[0]; + + if (qtest_log_fp) { + struct timeval tv; + int i; + + qtest_get_time(&tv); + fprintf(qtest_log_fp, "[R +" FMT_timeval "]", + tv.tv_sec, tv.tv_usec); + for (i = 0; words[i]; i++) { + fprintf(qtest_log_fp, " %s", words[i]); + } + fprintf(qtest_log_fp, "\n"); + } + + g_assert(command); + 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); + + if (words[0][3] == 'b') { + cpu_outb(addr, value); + } else if (words[0][3] == 'w') { + cpu_outw(addr, value); + } else if (words[0][3] == 'l') { + cpu_outl(addr, value); + } + qtest_send_prefix(chr); + qtest_send(chr, "OK\n"); + } else if (strcmp(words[0], "inb") == 0 || + strcmp(words[0], "inw") == 0 || + strcmp(words[0], "inl") == 0) { + uint16_t addr; + uint32_t value = -1U; + + g_assert(words[1]); + addr = strtol(words[1], NULL, 0); + + if (words[0][2] == 'b') { + value = cpu_inb(addr); + } else if (words[0][2] == 'w') { + value = cpu_inw(addr); + } else if (words[0][2] == 'l') { + value = cpu_inl(addr); + } + qtest_send_prefix(chr); + qtest_send(chr, "OK 0x%04x\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); + + data = g_malloc(len); + cpu_physical_memory_read(addr, data, len); + + qtest_send_prefix(chr); + qtest_send(chr, "OK 0x"); + for (i = 0; i < len; i++) { + qtest_send(chr, "%02x", data[i]); + } + qtest_send(chr, "\n"); + + g_free(data); + } else if (strcmp(words[0], "write") == 0) { + uint64_t addr, len, i; + uint8_t *data; + size_t data_len; + + g_assert(words[1] && words[2] && words[3]); + addr = strtoul(words[1], NULL, 0); + len = strtoul(words[2], NULL, 0); + + data_len = strlen(words[3]); + if (data_len < 3) { + qtest_send(chr, "ERR invalid argument size\n"); + return; + } + + data = g_malloc(len); + for (i = 0; i < len; i++) { + if ((i * 2 + 4) <= data_len) { + data[i] = hex2nib(words[3][i * 2 + 2]) << 4; + data[i] |= hex2nib(words[3][i * 2 + 3]); + } else { + data[i] = 0; + } + } + cpu_physical_memory_write(addr, data, len); + g_free(data); + + qtest_send_prefix(chr); + qtest_send(chr, "OK\n"); + } else { + qtest_send_prefix(chr); + qtest_send(chr, "FAIL Unknown command `%s'\n", words[0]); + } +} + +static void qtest_process_inbuf(CharDriverState *chr, GString *inbuf) +{ + char *end; + + while ((end = strchr(inbuf->str, '\n')) != NULL) { + size_t offset; + GString *cmd; + gchar **words; + + offset = end - inbuf->str; + + cmd = g_string_new_len(inbuf->str, offset); + g_string_erase(inbuf, 0, offset + 1); + + words = g_strsplit(cmd->str, " ", 0); + qtest_process_command(chr, words); + g_strfreev(words); + + g_string_free(cmd, TRUE); + } +} + +static void qtest_read(void *opaque, const uint8_t *buf, int size) +{ + CharDriverState *chr = opaque; + + g_string_append_len(inbuf, (const gchar *)buf, size); + qtest_process_inbuf(chr, inbuf); +} + +static int qtest_can_read(void *opaque) +{ + return 1024; +} + +static void qtest_event(void *opaque, int event) +{ + int i; + + switch (event) { + case CHR_EVENT_OPENED: + qemu_system_reset(false); + for (i = 0; i < ARRAY_SIZE(irq_levels); i++) { + irq_levels[i] = 0; + } + gettimeofday(&start_time, NULL); + qtest_opened = true; + if (qtest_log_fp) { + fprintf(qtest_log_fp, "[I " FMT_timeval "] OPENED\n", + start_time.tv_sec, start_time.tv_usec); + } + break; + case CHR_EVENT_CLOSED: + qtest_opened = false; + if (qtest_log_fp) { + struct timeval tv; + qtest_get_time(&tv); + fprintf(qtest_log_fp, "[I +" FMT_timeval "] CLOSED\n", + tv.tv_sec, tv.tv_usec); + } + break; + default: + break; + } +} + +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); + + chr = qemu_chr_new("qtest", qtest_chrdev, NULL); + + qemu_chr_add_handlers(chr, qtest_can_read, qtest_read, qtest_event, chr); + qemu_chr_fe_set_echo(chr, true); + + inbuf = g_string_new(""); + + if (qtest_log) { + if (strcmp(qtest_log, "none") != 0) { + qtest_log_fp = fopen(qtest_log, "w+"); + } + } else { + qtest_log_fp = stderr; + } + + qtest_chr = chr; + + return 0; +} diff --git a/qtest.h b/qtest.h new file mode 100644 index 0000000000..1478343ff0 --- /dev/null +++ b/qtest.h @@ -0,0 +1,35 @@ +/* + * Test Server + * + * Copyright IBM, Corp. 2011 + * + * Authors: + * Anthony Liguori <aliguori@us.ibm.com> + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#ifndef QTEST_H +#define QTEST_H + +#include "qemu-common.h" + +extern int qtest_allowed; +extern const char *qtest_chrdev; +extern const char *qtest_log; + +static inline bool qtest_enabled(void) +{ + return qtest_allowed; +} + +static inline int qtest_available(void) +{ + return 1; +} + +int qtest_init(void); + +#endif diff --git a/scripts/qtest b/scripts/qtest new file mode 100755 index 0000000000..4ef6c1c500 --- /dev/null +++ b/scripts/qtest @@ -0,0 +1,5 @@ +#!/bin/sh + +export QTEST_QEMU_BINARY=$1 +shift +"$@" @@ -152,6 +152,7 @@ int main(int argc, char **argv) #ifdef CONFIG_VIRTFS #include "fsdev/qemu-fsdev.h" #endif +#include "qtest.h" #include "disas.h" @@ -1312,7 +1313,7 @@ int qemu_shutdown_requested(void) void qemu_kill_report(void) { - if (shutdown_signal != -1) { + if (!qtest_enabled() && shutdown_signal != -1) { fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal); if (shutdown_pid == 0) { /* This happens for eg ^C at the terminal, so it's worth @@ -2098,6 +2099,7 @@ static struct { { "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed }, { "xen", "Xen", xen_available, xen_init, &xen_allowed }, { "kvm", "KVM", kvm_available, kvm_init, &kvm_allowed }, + { "qtest", "QTest", qtest_available, qtest_init, &qtest_allowed }, }; static int configure_accelerator(void) @@ -3181,6 +3183,12 @@ int main(int argc, char **argv, char **envp) fclose(fp); break; } + case QEMU_OPTION_qtest: + qtest_chrdev = optarg; + break; + case QEMU_OPTION_qtest_log: + qtest_log = optarg; + break; default: os_parse_cmd_args(popt->index, optarg); } |