diff options
| -rw-r--r-- | cpus.c | 87 |
1 files changed, 36 insertions, 51 deletions
@@ -346,11 +346,37 @@ static void sigfd_handler(void *opaque) } } -static int qemu_signalfd_init(sigset_t mask) +static int qemu_signal_init(void) { int sigfd; + sigset_t set; - sigfd = qemu_signalfd(&mask); +#ifdef CONFIG_IOTHREAD + /* SIGUSR2 used by posix-aio-compat.c */ + sigemptyset(&set); + sigaddset(&set, SIGUSR2); + pthread_sigmask(SIG_UNBLOCK, &set, NULL); + + sigemptyset(&set); + sigaddset(&set, SIGIO); + sigaddset(&set, SIGALRM); + sigaddset(&set, SIG_IPI); + sigaddset(&set, SIGBUS); + pthread_sigmask(SIG_BLOCK, &set, NULL); +#else + sigemptyset(&set); + sigaddset(&set, SIGBUS); + if (kvm_enabled()) { + /* + * We need to process timer signals synchronously to avoid a race + * between exit_request check and KVM vcpu entry. + */ + sigaddset(&set, SIGIO); + sigaddset(&set, SIGALRM); + } +#endif + + sigfd = qemu_signalfd(&set); if (sigfd == -1) { fprintf(stderr, "failed to create signalfd\n"); return -errno; @@ -438,6 +464,12 @@ static void qemu_event_increment(void) static void qemu_kvm_eat_signals(CPUState *env) { } + +static int qemu_signal_init(void) +{ + return 0; +} + #endif /* _WIN32 */ #ifndef CONFIG_IOTHREAD @@ -471,39 +503,14 @@ static void qemu_kvm_init_cpu_signals(CPUState *env) #endif } -#ifndef _WIN32 -static sigset_t block_synchronous_signals(void) -{ - sigset_t set; - - sigemptyset(&set); - sigaddset(&set, SIGBUS); - if (kvm_enabled()) { - /* - * We need to process timer signals synchronously to avoid a race - * between exit_request check and KVM vcpu entry. - */ - sigaddset(&set, SIGIO); - sigaddset(&set, SIGALRM); - } - - return set; -} -#endif - int qemu_init_main_loop(void) { -#ifndef _WIN32 - sigset_t blocked_signals; int ret; - blocked_signals = block_synchronous_signals(); - - ret = qemu_signalfd_init(blocked_signals); + ret = qemu_signal_init(); if (ret) { return ret; } -#endif qemu_init_sigbus(); @@ -651,35 +658,13 @@ static void qemu_tcg_init_cpu_signals(void) pthread_sigmask(SIG_UNBLOCK, &set, NULL); } -static sigset_t block_io_signals(void) -{ - sigset_t set; - - /* SIGUSR2 used by posix-aio-compat.c */ - sigemptyset(&set); - sigaddset(&set, SIGUSR2); - pthread_sigmask(SIG_UNBLOCK, &set, NULL); - - sigemptyset(&set); - sigaddset(&set, SIGIO); - sigaddset(&set, SIGALRM); - sigaddset(&set, SIG_IPI); - sigaddset(&set, SIGBUS); - pthread_sigmask(SIG_BLOCK, &set, NULL); - - return set; -} - int qemu_init_main_loop(void) { int ret; - sigset_t blocked_signals; qemu_init_sigbus(); - blocked_signals = block_io_signals(); - - ret = qemu_signalfd_init(blocked_signals); + ret = qemu_signal_init(); if (ret) { return ret; } |