#endif /* CONFIG_LINUX */
-static CPUArchState *next_cpu;
+static CPUState *next_cpu;
-static bool cpu_thread_is_idle(CPUArchState *env)
+static bool cpu_thread_is_idle(CPUState *cpu)
{
- CPUState *cpu = ENV_GET_CPU(env);
-
if (cpu->stop || cpu->queued_work_first) {
return false;
}
if (cpu->stopped || !runstate_is_running()) {
return true;
}
- if (!env->halted || qemu_cpu_has_work(cpu) ||
- kvm_async_interrupts_enabled()) {
+ if (!cpu->halted || qemu_cpu_has_work(cpu) ||
+ kvm_halt_in_kernel()) {
return false;
}
return true;
static bool all_cpu_threads_idle(void)
{
- CPUArchState *env;
+ CPUState *cpu;
- for (env = first_cpu; env != NULL; env = env->next_cpu) {
- if (!cpu_thread_is_idle(env)) {
+ for (cpu = first_cpu; cpu != NULL; cpu = cpu->next_cpu) {
+ if (!cpu_thread_is_idle(cpu)) {
return false;
}
}
int64_t cpu_get_icount(void)
{
int64_t icount;
- CPUArchState *env = cpu_single_env;
+ CPUState *cpu = current_cpu;
icount = qemu_icount;
- if (env) {
+ if (cpu) {
+ CPUArchState *env = cpu->env_ptr;
if (!can_do_io(env)) {
fprintf(stderr, "Bad clock read\n");
}
void hw_error(const char *fmt, ...)
{
va_list ap;
- CPUArchState *env;
CPUState *cpu;
va_start(ap, fmt);
fprintf(stderr, "qemu: hardware error: ");
vfprintf(stderr, fmt, ap);
fprintf(stderr, "\n");
- for (env = first_cpu; env != NULL; env = env->next_cpu) {
- cpu = ENV_GET_CPU(env);
+ for (cpu = first_cpu; cpu != NULL; cpu = cpu->next_cpu) {
fprintf(stderr, "CPU #%d:\n", cpu->cpu_index);
- cpu_dump_state(env, stderr, fprintf, CPU_DUMP_FPU);
+ cpu_dump_state(cpu, stderr, fprintf, CPU_DUMP_FPU);
}
va_end(ap);
abort();
void cpu_synchronize_all_states(void)
{
- CPUArchState *cpu;
+ CPUState *cpu;
for (cpu = first_cpu; cpu; cpu = cpu->next_cpu) {
cpu_synchronize_state(cpu);
void cpu_synchronize_all_post_reset(void)
{
- CPUArchState *cpu;
+ CPUState *cpu;
for (cpu = first_cpu; cpu; cpu = cpu->next_cpu) {
cpu_synchronize_post_reset(cpu);
void cpu_synchronize_all_post_init(void)
{
- CPUArchState *cpu;
+ CPUState *cpu;
for (cpu = first_cpu; cpu; cpu = cpu->next_cpu) {
cpu_synchronize_post_init(cpu);
return !runstate_is_running() || cpu->stopped;
}
-static void do_vm_stop(RunState state)
+static int do_vm_stop(RunState state)
{
+ int ret = 0;
+
if (runstate_is_running()) {
cpu_disable_ticks();
pause_all_vcpus();
runstate_set(state);
vm_state_notify(0, state);
bdrv_drain_all();
- bdrv_flush_all();
+ ret = bdrv_flush_all();
monitor_protocol_event(QEVENT_STOP, NULL);
}
+
+ return ret;
}
static bool cpu_can_run(CPUState *cpu)
return true;
}
-static void cpu_handle_guest_debug(CPUArchState *env)
+static void cpu_handle_guest_debug(CPUState *cpu)
{
- CPUState *cpu = ENV_GET_CPU(env);
-
- gdb_set_stop_cpu(env);
+ gdb_set_stop_cpu(cpu);
qemu_system_debug_request();
cpu->stopped = true;
}
static void cpu_signal(int sig)
{
- if (cpu_single_env) {
- cpu_exit(cpu_single_env);
+ if (current_cpu) {
+ cpu_exit(current_cpu);
}
exit_request = 1;
}
prctl(PR_MCE_KILL, PR_MCE_KILL_SET, PR_MCE_KILL_EARLY, 0, 0);
}
-static void qemu_kvm_eat_signals(CPUArchState *env)
+static void qemu_kvm_eat_signals(CPUState *cpu)
{
struct timespec ts = { 0, 0 };
siginfo_t siginfo;
switch (r) {
case SIGBUS:
- if (kvm_on_sigbus_vcpu(env, siginfo.si_code, siginfo.si_addr)) {
+ if (kvm_on_sigbus_vcpu(cpu, siginfo.si_code, siginfo.si_addr)) {
sigbus_reraise();
}
break;
{
}
-static void qemu_kvm_eat_signals(CPUArchState *env)
+static void qemu_kvm_eat_signals(CPUState *cpu)
{
}
#endif /* !CONFIG_LINUX */
{
}
-static void qemu_kvm_init_cpu_signals(CPUArchState *env)
+static void qemu_kvm_init_cpu_signals(CPUState *cpu)
{
int r;
sigset_t set;
pthread_sigmask(SIG_BLOCK, NULL, &set);
sigdelset(&set, SIG_IPI);
sigdelset(&set, SIGBUS);
- r = kvm_set_signal_mask(env, &set);
+ r = kvm_set_signal_mask(cpu, &set);
if (r) {
fprintf(stderr, "kvm_set_signal_mask: %s\n", strerror(-r));
exit(1);
}
#else /* _WIN32 */
-static void qemu_kvm_init_cpu_signals(CPUArchState *env)
+static void qemu_kvm_init_cpu_signals(CPUState *cpu)
{
abort();
}
wi.func = func;
wi.data = data;
+ wi.free = false;
if (cpu->queued_work_first == NULL) {
cpu->queued_work_first = &wi;
} else {
qemu_cpu_kick(cpu);
while (!wi.done) {
- CPUArchState *self_env = cpu_single_env;
+ CPUState *self_cpu = current_cpu;
qemu_cond_wait(&qemu_work_cond, &qemu_global_mutex);
- cpu_single_env = self_env;
+ current_cpu = self_cpu;
}
}
+void async_run_on_cpu(CPUState *cpu, void (*func)(void *data), void *data)
+{
+ struct qemu_work_item *wi;
+
+ if (qemu_cpu_is_self(cpu)) {
+ func(data);
+ return;
+ }
+
+ wi = g_malloc0(sizeof(struct qemu_work_item));
+ wi->func = func;
+ wi->data = data;
+ wi->free = true;
+ if (cpu->queued_work_first == NULL) {
+ cpu->queued_work_first = wi;
+ } else {
+ cpu->queued_work_last->next = wi;
+ }
+ cpu->queued_work_last = wi;
+ wi->next = NULL;
+ wi->done = false;
+
+ qemu_cpu_kick(cpu);
+}
+
static void flush_queued_work(CPUState *cpu)
{
struct qemu_work_item *wi;
cpu->queued_work_first = wi->next;
wi->func(wi->data);
wi->done = true;
+ if (wi->free) {
+ g_free(wi);
+ }
}
cpu->queued_work_last = NULL;
qemu_cond_broadcast(&qemu_work_cond);
static void qemu_tcg_wait_io_event(void)
{
- CPUArchState *env;
+ CPUState *cpu;
while (all_cpu_threads_idle()) {
/* Start accounting real time to the virtual clock if the CPUs
qemu_cond_wait(&qemu_io_proceeded_cond, &qemu_global_mutex);
}
- for (env = first_cpu; env != NULL; env = env->next_cpu) {
- qemu_wait_io_event_common(ENV_GET_CPU(env));
+ for (cpu = first_cpu; cpu != NULL; cpu = cpu->next_cpu) {
+ qemu_wait_io_event_common(cpu);
}
}
-static void qemu_kvm_wait_io_event(CPUArchState *env)
+static void qemu_kvm_wait_io_event(CPUState *cpu)
{
- CPUState *cpu = ENV_GET_CPU(env);
-
- while (cpu_thread_is_idle(env)) {
+ while (cpu_thread_is_idle(cpu)) {
qemu_cond_wait(cpu->halt_cond, &qemu_global_mutex);
}
- qemu_kvm_eat_signals(env);
+ qemu_kvm_eat_signals(cpu);
qemu_wait_io_event_common(cpu);
}
static void *qemu_kvm_cpu_thread_fn(void *arg)
{
- CPUArchState *env = arg;
- CPUState *cpu = ENV_GET_CPU(env);
+ CPUState *cpu = arg;
int r;
qemu_mutex_lock(&qemu_global_mutex);
qemu_thread_get_self(cpu->thread);
cpu->thread_id = qemu_get_thread_id();
- cpu_single_env = env;
+ current_cpu = cpu;
r = kvm_init_vcpu(cpu);
if (r < 0) {
exit(1);
}
- qemu_kvm_init_cpu_signals(env);
+ qemu_kvm_init_cpu_signals(cpu);
/* signal CPU creation */
cpu->created = true;
while (1) {
if (cpu_can_run(cpu)) {
- r = kvm_cpu_exec(env);
+ r = kvm_cpu_exec(cpu);
if (r == EXCP_DEBUG) {
- cpu_handle_guest_debug(env);
+ cpu_handle_guest_debug(cpu);
}
}
- qemu_kvm_wait_io_event(env);
+ qemu_kvm_wait_io_event(cpu);
}
return NULL;
fprintf(stderr, "qtest is not supported under Windows\n");
exit(1);
#else
- CPUArchState *env = arg;
- CPUState *cpu = ENV_GET_CPU(env);
+ CPUState *cpu = arg;
sigset_t waitset;
int r;
cpu->created = true;
qemu_cond_signal(&qemu_cpu_cond);
- cpu_single_env = env;
+ current_cpu = cpu;
while (1) {
- cpu_single_env = NULL;
+ current_cpu = NULL;
qemu_mutex_unlock_iothread();
do {
int sig;
exit(1);
}
qemu_mutex_lock_iothread();
- cpu_single_env = env;
+ current_cpu = cpu;
qemu_wait_io_event_common(cpu);
}
static void tcg_exec_all(void);
+static void tcg_signal_cpu_creation(CPUState *cpu, void *data)
+{
+ cpu->thread_id = qemu_get_thread_id();
+ cpu->created = true;
+}
+
static void *qemu_tcg_cpu_thread_fn(void *arg)
{
CPUState *cpu = arg;
- CPUArchState *env;
qemu_tcg_init_cpu_signals();
qemu_thread_get_self(cpu->thread);
- /* signal CPU creation */
qemu_mutex_lock(&qemu_global_mutex);
- for (env = first_cpu; env != NULL; env = env->next_cpu) {
- cpu = ENV_GET_CPU(env);
- cpu->thread_id = qemu_get_thread_id();
- cpu->created = true;
- }
+ qemu_for_each_cpu(tcg_signal_cpu_creation, NULL);
qemu_cond_signal(&qemu_cpu_cond);
/* wait for initial kick-off after machine start */
- while (ENV_GET_CPU(first_cpu)->stopped) {
+ while (first_cpu->stopped) {
qemu_cond_wait(tcg_halt_cond, &qemu_global_mutex);
/* process any pending work */
- for (env = first_cpu; env != NULL; env = env->next_cpu) {
- qemu_wait_io_event_common(ENV_GET_CPU(env));
+ for (cpu = first_cpu; cpu != NULL; cpu = cpu->next_cpu) {
+ qemu_wait_io_event_common(cpu);
}
}
}
#else /* _WIN32 */
if (!qemu_cpu_is_self(cpu)) {
- SuspendThread(cpu->hThread);
+ CONTEXT tcgContext;
+
+ if (SuspendThread(cpu->hThread) == (DWORD)-1) {
+ fprintf(stderr, "qemu:%s: GetLastError:%lu\n", __func__,
+ GetLastError());
+ exit(1);
+ }
+
+ /* On multi-core systems, we are not sure that the thread is actually
+ * suspended until we can get the context.
+ */
+ tcgContext.ContextFlags = CONTEXT_CONTROL;
+ while (GetThreadContext(cpu->hThread, &tcgContext) != 0) {
+ continue;
+ }
+
cpu_signal(0);
- ResumeThread(cpu->hThread);
+
+ if (ResumeThread(cpu->hThread) == (DWORD)-1) {
+ fprintf(stderr, "qemu:%s: GetLastError:%lu\n", __func__,
+ GetLastError());
+ exit(1);
+ }
}
#endif
}
void qemu_cpu_kick_self(void)
{
#ifndef _WIN32
- assert(cpu_single_env);
- CPUState *cpu_single_cpu = ENV_GET_CPU(cpu_single_env);
+ assert(current_cpu);
- if (!cpu_single_cpu->thread_kicked) {
- qemu_cpu_kick_thread(cpu_single_cpu);
- cpu_single_cpu->thread_kicked = true;
+ if (!current_cpu->thread_kicked) {
+ qemu_cpu_kick_thread(current_cpu);
+ current_cpu->thread_kicked = true;
}
#else
abort();
static bool qemu_in_vcpu_thread(void)
{
- return cpu_single_env && qemu_cpu_is_self(ENV_GET_CPU(cpu_single_env));
+ return current_cpu && qemu_cpu_is_self(current_cpu);
}
void qemu_mutex_lock_iothread(void)
} else {
iothread_requesting_mutex = true;
if (qemu_mutex_trylock(&qemu_global_mutex)) {
- qemu_cpu_kick_thread(ENV_GET_CPU(first_cpu));
+ qemu_cpu_kick_thread(first_cpu);
qemu_mutex_lock(&qemu_global_mutex);
}
iothread_requesting_mutex = false;
static int all_vcpus_paused(void)
{
- CPUArchState *penv = first_cpu;
+ CPUState *cpu = first_cpu;
- while (penv) {
- CPUState *pcpu = ENV_GET_CPU(penv);
- if (!pcpu->stopped) {
+ while (cpu) {
+ if (!cpu->stopped) {
return 0;
}
- penv = penv->next_cpu;
+ cpu = cpu->next_cpu;
}
return 1;
void pause_all_vcpus(void)
{
- CPUArchState *penv = first_cpu;
+ CPUState *cpu = first_cpu;
qemu_clock_enable(vm_clock, false);
- while (penv) {
- CPUState *pcpu = ENV_GET_CPU(penv);
- pcpu->stop = true;
- qemu_cpu_kick(pcpu);
- penv = penv->next_cpu;
+ while (cpu) {
+ cpu->stop = true;
+ qemu_cpu_kick(cpu);
+ cpu = cpu->next_cpu;
}
if (qemu_in_vcpu_thread()) {
cpu_stop_current();
if (!kvm_enabled()) {
- while (penv) {
- CPUState *pcpu = ENV_GET_CPU(penv);
- pcpu->stop = 0;
- pcpu->stopped = true;
- penv = penv->next_cpu;
+ cpu = first_cpu;
+ while (cpu) {
+ cpu->stop = false;
+ cpu->stopped = true;
+ cpu = cpu->next_cpu;
}
return;
}
while (!all_vcpus_paused()) {
qemu_cond_wait(&qemu_pause_cond, &qemu_global_mutex);
- penv = first_cpu;
- while (penv) {
- qemu_cpu_kick(ENV_GET_CPU(penv));
- penv = penv->next_cpu;
+ cpu = first_cpu;
+ while (cpu) {
+ qemu_cpu_kick(cpu);
+ cpu = cpu->next_cpu;
}
}
}
+void cpu_resume(CPUState *cpu)
+{
+ cpu->stop = false;
+ cpu->stopped = false;
+ qemu_cpu_kick(cpu);
+}
+
void resume_all_vcpus(void)
{
- CPUArchState *penv = first_cpu;
+ CPUState *cpu = first_cpu;
qemu_clock_enable(vm_clock, true);
- while (penv) {
- CPUState *pcpu = ENV_GET_CPU(penv);
- pcpu->stop = false;
- pcpu->stopped = false;
- qemu_cpu_kick(pcpu);
- penv = penv->next_cpu;
+ while (cpu) {
+ cpu_resume(cpu);
+ cpu = cpu->next_cpu;
}
}
}
}
-static void qemu_kvm_start_vcpu(CPUArchState *env)
+static void qemu_kvm_start_vcpu(CPUState *cpu)
{
- CPUState *cpu = ENV_GET_CPU(env);
-
cpu->thread = g_malloc0(sizeof(QemuThread));
cpu->halt_cond = g_malloc0(sizeof(QemuCond));
qemu_cond_init(cpu->halt_cond);
- qemu_thread_create(cpu->thread, qemu_kvm_cpu_thread_fn, env,
+ qemu_thread_create(cpu->thread, qemu_kvm_cpu_thread_fn, cpu,
QEMU_THREAD_JOINABLE);
while (!cpu->created) {
qemu_cond_wait(&qemu_cpu_cond, &qemu_global_mutex);
}
}
-static void qemu_dummy_start_vcpu(CPUArchState *env)
+static void qemu_dummy_start_vcpu(CPUState *cpu)
{
- CPUState *cpu = ENV_GET_CPU(env);
-
cpu->thread = g_malloc0(sizeof(QemuThread));
cpu->halt_cond = g_malloc0(sizeof(QemuCond));
qemu_cond_init(cpu->halt_cond);
- qemu_thread_create(cpu->thread, qemu_dummy_cpu_thread_fn, env,
+ qemu_thread_create(cpu->thread, qemu_dummy_cpu_thread_fn, cpu,
QEMU_THREAD_JOINABLE);
while (!cpu->created) {
qemu_cond_wait(&qemu_cpu_cond, &qemu_global_mutex);
}
}
-void qemu_init_vcpu(void *_env)
+void qemu_init_vcpu(CPUState *cpu)
{
- CPUArchState *env = _env;
- CPUState *cpu = ENV_GET_CPU(env);
-
cpu->nr_cores = smp_cores;
cpu->nr_threads = smp_threads;
cpu->stopped = true;
if (kvm_enabled()) {
- qemu_kvm_start_vcpu(env);
+ qemu_kvm_start_vcpu(cpu);
} else if (tcg_enabled()) {
qemu_tcg_init_vcpu(cpu);
} else {
- qemu_dummy_start_vcpu(env);
+ qemu_dummy_start_vcpu(cpu);
}
}
void cpu_stop_current(void)
{
- if (cpu_single_env) {
- CPUState *cpu_single_cpu = ENV_GET_CPU(cpu_single_env);
- cpu_single_cpu->stop = false;
- cpu_single_cpu->stopped = true;
- cpu_exit(cpu_single_env);
+ if (current_cpu) {
+ current_cpu->stop = false;
+ current_cpu->stopped = true;
+ cpu_exit(current_cpu);
qemu_cond_signal(&qemu_pause_cond);
}
}
-void vm_stop(RunState state)
+int vm_stop(RunState state)
{
if (qemu_in_vcpu_thread()) {
qemu_system_vmstop_request(state);
* vm_stop() has been requested.
*/
cpu_stop_current();
- return;
+ return 0;
}
- do_vm_stop(state);
+
+ return do_vm_stop(state);
}
/* does a state transition even if the VM is already stopped,
current state is forgotten forever */
-void vm_stop_force_state(RunState state)
+int vm_stop_force_state(RunState state)
{
if (runstate_is_running()) {
- vm_stop(state);
+ return vm_stop(state);
} else {
runstate_set(state);
+ return 0;
}
}
next_cpu = first_cpu;
}
for (; next_cpu != NULL && !exit_request; next_cpu = next_cpu->next_cpu) {
- CPUArchState *env = next_cpu;
- CPUState *cpu = ENV_GET_CPU(env);
+ CPUState *cpu = next_cpu;
+ CPUArchState *env = cpu->env_ptr;
qemu_clock_enable(vm_clock,
(env->singlestep_enabled & SSTEP_NOTIMER) == 0);
if (cpu_can_run(cpu)) {
r = tcg_cpu_exec(env);
if (r == EXCP_DEBUG) {
- cpu_handle_guest_debug(env);
+ cpu_handle_guest_debug(cpu);
break;
}
} else if (cpu->stop || cpu->stopped) {
void set_numa_modes(void)
{
- CPUArchState *env;
CPUState *cpu;
int i;
- for (env = first_cpu; env != NULL; env = env->next_cpu) {
- cpu = ENV_GET_CPU(env);
+ for (cpu = first_cpu; cpu != NULL; cpu = cpu->next_cpu) {
for (i = 0; i < nb_numa_nodes; i++) {
if (test_bit(cpu->cpu_index, node_cpumask[i])) {
cpu->numa_node = i;
}
}
-void set_cpu_log(const char *optarg)
-{
- int mask;
- const CPULogItem *item;
-
- mask = cpu_str_to_log_mask(optarg);
- if (!mask) {
- printf("Log items (comma separated):\n");
- for (item = cpu_log_items; item->mask != 0; item++) {
- printf("%-10s %s\n", item->name, item->help);
- }
- exit(1);
- }
- cpu_set_log(mask);
-}
-
-void set_cpu_log_filename(const char *optarg)
-{
- cpu_set_log_filename(optarg);
-}
-
void list_cpus(FILE *f, fprintf_function cpu_fprintf, const char *optarg)
{
/* XXX: implement xxx_cpu_list for targets that still miss it */
CpuInfoList *qmp_query_cpus(Error **errp)
{
CpuInfoList *head = NULL, *cur_item = NULL;
- CPUArchState *env;
+ CPUState *cpu;
- for (env = first_cpu; env != NULL; env = env->next_cpu) {
- CPUState *cpu = ENV_GET_CPU(env);
+ for (cpu = first_cpu; cpu != NULL; cpu = cpu->next_cpu) {
CpuInfoList *info;
+#if defined(TARGET_I386)
+ X86CPU *x86_cpu = X86_CPU(cpu);
+ CPUX86State *env = &x86_cpu->env;
+#elif defined(TARGET_PPC)
+ PowerPCCPU *ppc_cpu = POWERPC_CPU(cpu);
+ CPUPPCState *env = &ppc_cpu->env;
+#elif defined(TARGET_SPARC)
+ SPARCCPU *sparc_cpu = SPARC_CPU(cpu);
+ CPUSPARCState *env = &sparc_cpu->env;
+#elif defined(TARGET_MIPS)
+ MIPSCPU *mips_cpu = MIPS_CPU(cpu);
+ CPUMIPSState *env = &mips_cpu->env;
+#endif
- cpu_synchronize_state(env);
+ cpu_synchronize_state(cpu);
info = g_malloc0(sizeof(*info));
info->value = g_malloc0(sizeof(*info->value));
info->value->CPU = cpu->cpu_index;
- info->value->current = (env == first_cpu);
- info->value->halted = env->halted;
+ info->value->current = (cpu == first_cpu);
+ info->value->halted = cpu->halted;
info->value->thread_id = cpu->thread_id;
#if defined(TARGET_I386)
info->value->has_pc = true;
cpu_index = 0;
}
- for (env = first_cpu; env; env = env->next_cpu) {
- cpu = ENV_GET_CPU(env);
- if (cpu_index == cpu->cpu_index) {
- break;
- }
- }
-
- if (env == NULL) {
+ cpu = qemu_get_cpu(cpu_index);
+ if (cpu == NULL) {
error_set(errp, QERR_INVALID_PARAMETER_VALUE, "cpu-index",
"a CPU number");
return;
}
+ env = cpu->env_ptr;
f = fopen(filename, "wb");
if (!f) {
- error_set(errp, QERR_OPEN_FILE_FAILED, filename);
+ error_setg_file_open(errp, errno, filename);
return;
}
f = fopen(filename, "wb");
if (!f) {
- error_set(errp, QERR_OPEN_FILE_FAILED, filename);
+ error_setg_file_open(errp, errno, filename);
return;
}
void qmp_inject_nmi(Error **errp)
{
#if defined(TARGET_I386)
- CPUArchState *env;
+ CPUState *cs;
+
+ for (cs = first_cpu; cs != NULL; cs = cs->next_cpu) {
+ X86CPU *cpu = X86_CPU(cs);
+ CPUX86State *env = &cpu->env;
- for (env = first_cpu; env != NULL; env = env->next_cpu) {
if (!env->apic_state) {
- cpu_interrupt(env, CPU_INTERRUPT_NMI);
+ cpu_interrupt(cs, CPU_INTERRUPT_NMI);
} else {
apic_deliver_nmi(env->apic_state);
}
projects / qemu.git / blobdiff