diff options
Diffstat (limited to 'cpus.c')
| -rw-r--r-- | cpus.c | 126 |
1 files changed, 54 insertions, 72 deletions
@@ -148,7 +148,8 @@ static bool cpu_thread_is_idle(CPUState *env) if (env->stopped || !vm_running) { return true; } - if (!env->halted || qemu_cpu_has_work(env)) { + if (!env->halted || qemu_cpu_has_work(env) || + (kvm_enabled() && kvm_irqchip_in_kernel())) { return false; } return true; @@ -166,29 +167,8 @@ static bool all_cpu_threads_idle(void) return true; } -static CPUDebugExcpHandler *debug_excp_handler; - -CPUDebugExcpHandler *cpu_set_debug_excp_handler(CPUDebugExcpHandler *handler) +static void cpu_handle_guest_debug(CPUState *env) { - CPUDebugExcpHandler *old_handler = debug_excp_handler; - - debug_excp_handler = handler; - return old_handler; -} - -static void cpu_handle_debug_exception(CPUState *env) -{ - CPUWatchpoint *wp; - - if (!env->watchpoint_hit) { - QTAILQ_FOREACH(wp, &env->watchpoints, entry) { - wp->flags &= ~BP_WATCHPOINT_HIT; - } - } - if (debug_excp_handler) { - debug_excp_handler(env); - } - gdb_set_stop_cpu(env); qemu_system_debug_request(); #ifdef CONFIG_IOTHREAD @@ -245,11 +225,58 @@ static void qemu_init_sigbus(void) prctl(PR_MCE_KILL, PR_MCE_KILL_SET, PR_MCE_KILL_EARLY, 0, 0); } +static void qemu_kvm_eat_signals(CPUState *env) +{ + struct timespec ts = { 0, 0 }; + siginfo_t siginfo; + sigset_t waitset; + sigset_t chkset; + int r; + + sigemptyset(&waitset); + sigaddset(&waitset, SIG_IPI); + sigaddset(&waitset, SIGBUS); + + do { + r = sigtimedwait(&waitset, &siginfo, &ts); + if (r == -1 && !(errno == EAGAIN || errno == EINTR)) { + perror("sigtimedwait"); + exit(1); + } + + switch (r) { + case SIGBUS: + if (kvm_on_sigbus_vcpu(env, siginfo.si_code, siginfo.si_addr)) { + sigbus_reraise(); + } + break; + default: + break; + } + + r = sigpending(&chkset); + if (r == -1) { + perror("sigpending"); + exit(1); + } + } while (sigismember(&chkset, SIG_IPI) || sigismember(&chkset, SIGBUS)); + +#ifndef CONFIG_IOTHREAD + if (sigismember(&chkset, SIGIO) || sigismember(&chkset, SIGALRM)) { + qemu_notify_event(); + } +#endif +} + #else /* !CONFIG_LINUX */ static void qemu_init_sigbus(void) { } + +static void qemu_kvm_eat_signals(CPUState *env) +{ +} #endif /* !CONFIG_LINUX */ #ifndef _WIN32 @@ -455,49 +482,6 @@ static void qemu_tcg_init_cpu_signals(void) #endif } -static void qemu_kvm_eat_signals(CPUState *env) -{ - struct timespec ts = { 0, 0 }; - siginfo_t siginfo; - sigset_t waitset; - sigset_t chkset; - int r; - - sigemptyset(&waitset); - sigaddset(&waitset, SIG_IPI); - sigaddset(&waitset, SIGBUS); - - do { - r = sigtimedwait(&waitset, &siginfo, &ts); - if (r == -1 && !(errno == EAGAIN || errno == EINTR)) { - perror("sigtimedwait"); - exit(1); - } - - switch (r) { - case SIGBUS: - if (kvm_on_sigbus_vcpu(env, siginfo.si_code, siginfo.si_addr)) { - sigbus_reraise(); - } - break; - default: - break; - } - - r = sigpending(&chkset); - if (r == -1) { - perror("sigpending"); - exit(1); - } - } while (sigismember(&chkset, SIG_IPI) || sigismember(&chkset, SIGBUS)); - -#ifndef CONFIG_IOTHREAD - if (sigismember(&chkset, SIGIO) || sigismember(&chkset, SIGALRM)) { - qemu_notify_event(); - } -#endif -} - #else /* _WIN32 */ HANDLE qemu_event_handle; @@ -526,10 +510,6 @@ static void qemu_event_increment(void) } } -static void qemu_kvm_eat_signals(CPUState *env) -{ -} - static int qemu_signal_init(void) { return 0; @@ -796,6 +776,7 @@ static void *qemu_kvm_cpu_thread_fn(void *arg) qemu_mutex_lock(&qemu_global_mutex); qemu_thread_get_self(env->thread); + env->thread_id = qemu_get_thread_id(); r = kvm_init_vcpu(env); if (r < 0) { @@ -818,7 +799,7 @@ static void *qemu_kvm_cpu_thread_fn(void *arg) if (cpu_can_run(env)) { r = kvm_cpu_exec(env); if (r == EXCP_DEBUG) { - cpu_handle_debug_exception(env); + cpu_handle_guest_debug(env); } } qemu_kvm_wait_io_event(env); @@ -837,6 +818,7 @@ static void *qemu_tcg_cpu_thread_fn(void *arg) /* signal CPU creation */ qemu_mutex_lock(&qemu_global_mutex); for (env = first_cpu; env != NULL; env = env->next_cpu) { + env->thread_id = qemu_get_thread_id(); env->created = 1; } qemu_cond_signal(&qemu_cpu_cond); @@ -1110,7 +1092,7 @@ bool cpu_exec_all(void) r = tcg_cpu_exec(env); } if (r == EXCP_DEBUG) { - cpu_handle_debug_exception(env); + cpu_handle_guest_debug(env); break; } } else if (env->stop || env->stopped) { |