From: Jan Kiszka <jan.kiszka@web.de> To: Avi Kivity <avi@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com> Cc: kvm@vger.kernel.org, qemu-devel@nongnu.org Subject: [PATCH 05/18] kvm: Set up signal mask also for !CONFIG_IOTHREAD Date: Mon, 10 Jan 2011 09:31:58 +0100 [thread overview] Message-ID: <ce38ce90f07ddfc5b8cabf0666947b2379e3a00e.1294648329.git.jan.kiszka@web.de> (raw) In-Reply-To: <cover.1294648329.git.jan.kiszka@web.de> In-Reply-To: <cover.1294648329.git.jan.kiszka@web.de> From: Jan Kiszka <jan.kiszka@siemens.com> Block SIG_IPI and SIGBUS, unblock them during KVM_RUN, just like in io-thread mode. This will be required to process SIGBUS and for self-IPIs. As Windows doesn't support signal services, we need to provide a stub for the init function. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> --- cpus.c | 17 ++++++++++++++--- 1 files changed, 14 insertions(+), 3 deletions(-) diff --git a/cpus.c b/cpus.c index a21e2d6..bf0fb85 100644 --- a/cpus.c +++ b/cpus.c @@ -223,7 +223,6 @@ fail: return err; } -#ifdef CONFIG_IOTHREAD static void dummy_signal(int sig) { } @@ -238,6 +237,13 @@ static void qemu_kvm_init_cpu_signals(CPUState *env) sigact.sa_handler = dummy_signal; sigaction(SIG_IPI, &sigact, NULL); +#ifndef CONFIG_IOTHREAD + sigemptyset(&set); + sigaddset(&set, SIG_IPI); + sigaddset(&set, SIGBUS); + pthread_sigmask(SIG_BLOCK, &set, NULL); +#endif + pthread_sigmask(SIG_BLOCK, NULL, &set); sigdelset(&set, SIG_IPI); sigdelset(&set, SIGBUS); @@ -247,7 +253,6 @@ static void qemu_kvm_init_cpu_signals(CPUState *env) exit(1); } } -#endif #else /* _WIN32 */ @@ -276,6 +281,10 @@ static void qemu_event_increment(void) exit (1); } } + +static void qemu_kvm_init_cpu_signals(CPUState *env) +{ +} #endif /* _WIN32 */ #ifndef CONFIG_IOTHREAD @@ -296,8 +305,10 @@ void qemu_init_vcpu(void *_env) env->nr_cores = smp_cores; env->nr_threads = smp_threads; - if (kvm_enabled()) + if (kvm_enabled()) { kvm_init_vcpu(env); + qemu_kvm_init_cpu_signals(env); + } return; } -- 1.7.1
WARNING: multiple messages have this Message-ID (diff)
From: Jan Kiszka <jan.kiszka@web.de> To: Avi Kivity <avi@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com> Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org Subject: [Qemu-devel] [PATCH 05/18] kvm: Set up signal mask also for !CONFIG_IOTHREAD Date: Mon, 10 Jan 2011 09:31:58 +0100 [thread overview] Message-ID: <ce38ce90f07ddfc5b8cabf0666947b2379e3a00e.1294648329.git.jan.kiszka@web.de> (raw) In-Reply-To: <cover.1294648329.git.jan.kiszka@web.de> In-Reply-To: <cover.1294648329.git.jan.kiszka@web.de> From: Jan Kiszka <jan.kiszka@siemens.com> Block SIG_IPI and SIGBUS, unblock them during KVM_RUN, just like in io-thread mode. This will be required to process SIGBUS and for self-IPIs. As Windows doesn't support signal services, we need to provide a stub for the init function. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> --- cpus.c | 17 ++++++++++++++--- 1 files changed, 14 insertions(+), 3 deletions(-) diff --git a/cpus.c b/cpus.c index a21e2d6..bf0fb85 100644 --- a/cpus.c +++ b/cpus.c @@ -223,7 +223,6 @@ fail: return err; } -#ifdef CONFIG_IOTHREAD static void dummy_signal(int sig) { } @@ -238,6 +237,13 @@ static void qemu_kvm_init_cpu_signals(CPUState *env) sigact.sa_handler = dummy_signal; sigaction(SIG_IPI, &sigact, NULL); +#ifndef CONFIG_IOTHREAD + sigemptyset(&set); + sigaddset(&set, SIG_IPI); + sigaddset(&set, SIGBUS); + pthread_sigmask(SIG_BLOCK, &set, NULL); +#endif + pthread_sigmask(SIG_BLOCK, NULL, &set); sigdelset(&set, SIG_IPI); sigdelset(&set, SIGBUS); @@ -247,7 +253,6 @@ static void qemu_kvm_init_cpu_signals(CPUState *env) exit(1); } } -#endif #else /* _WIN32 */ @@ -276,6 +281,10 @@ static void qemu_event_increment(void) exit (1); } } + +static void qemu_kvm_init_cpu_signals(CPUState *env) +{ +} #endif /* _WIN32 */ #ifndef CONFIG_IOTHREAD @@ -296,8 +305,10 @@ void qemu_init_vcpu(void *_env) env->nr_cores = smp_cores; env->nr_threads = smp_threads; - if (kvm_enabled()) + if (kvm_enabled()) { kvm_init_vcpu(env); + qemu_kvm_init_cpu_signals(env); + } return; } -- 1.7.1
next prev parent reply other threads:[~2011-01-10 8:33 UTC|newest] Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-01-10 8:31 [PATCH 00/18] [uq/master] MCE & IO exit fixes, prepare for VCPU loop reuse Jan Kiszka 2011-01-10 8:31 ` [Qemu-devel] " Jan Kiszka 2011-01-10 8:31 ` [PATCH 01/18] Revert "kvm: Drop return value of kvm_cpu_exec" Jan Kiszka 2011-01-10 8:31 ` [Qemu-devel] " Jan Kiszka 2011-01-10 8:31 ` [PATCH 02/18] kvm: Drop redundant kvm_enabled from kvm_cpu_thread_fn Jan Kiszka 2011-01-10 8:31 ` [Qemu-devel] " Jan Kiszka 2011-01-10 8:31 ` [PATCH 03/18] kvm: Provide sigbus services arch-independently Jan Kiszka 2011-01-10 8:31 ` [Qemu-devel] " Jan Kiszka 2011-01-10 10:13 ` Paolo Bonzini 2011-01-10 10:13 ` [Qemu-devel] " Paolo Bonzini 2011-01-10 10:30 ` Jan Kiszka 2011-01-10 10:30 ` [Qemu-devel] " Jan Kiszka 2011-01-10 8:31 ` [PATCH 04/18] Refactor signal setup functions in cpus.c Jan Kiszka 2011-01-10 8:31 ` [Qemu-devel] " Jan Kiszka 2011-01-10 8:31 ` Jan Kiszka [this message] 2011-01-10 8:31 ` [Qemu-devel] [PATCH 05/18] kvm: Set up signal mask also for !CONFIG_IOTHREAD Jan Kiszka 2011-01-10 8:31 ` [PATCH 06/18] kvm: Refactor qemu_kvm_eat_signals Jan Kiszka 2011-01-10 8:31 ` [Qemu-devel] " Jan Kiszka 2011-01-10 10:15 ` Paolo Bonzini 2011-01-10 10:15 ` [Qemu-devel] " Paolo Bonzini 2011-01-10 8:32 ` [PATCH 07/18] kvm: Add MCE signal support for !CONFIG_IOTHREAD Jan Kiszka 2011-01-10 8:32 ` [Qemu-devel] " Jan Kiszka 2011-01-24 11:17 ` Marcelo Tosatti 2011-01-24 11:17 ` [Qemu-devel] " Marcelo Tosatti 2011-01-24 12:36 ` Jan Kiszka 2011-01-24 12:36 ` [Qemu-devel] " Jan Kiszka 2011-01-26 8:09 ` Jan Kiszka 2011-01-26 8:09 ` [Qemu-devel] " Jan Kiszka 2011-01-26 12:01 ` Marcelo Tosatti 2011-01-26 12:01 ` [Qemu-devel] " Marcelo Tosatti 2011-01-26 12:06 ` Jan Kiszka 2011-01-26 12:06 ` [Qemu-devel] " Jan Kiszka 2011-01-10 8:32 ` [PATCH 08/18] kvm: Handle kvm_init_vcpu errors Jan Kiszka 2011-01-10 8:32 ` [Qemu-devel] " Jan Kiszka 2011-01-10 8:32 ` [PATCH 09/18] Refactor kvm&tcg function names in cpus.c Jan Kiszka 2011-01-10 8:32 ` [Qemu-devel] " Jan Kiszka 2011-01-10 8:32 ` [PATCH 10/18] Fix a few coding style violations " Jan Kiszka 2011-01-10 8:32 ` [Qemu-devel] " Jan Kiszka 2011-01-10 8:32 ` [PATCH 11/18] Introduce VCPU self-signaling service Jan Kiszka 2011-01-10 8:32 ` [Qemu-devel] " Jan Kiszka 2011-01-24 11:47 ` Marcelo Tosatti 2011-01-24 11:47 ` [Qemu-devel] " Marcelo Tosatti 2011-01-24 12:36 ` Jan Kiszka 2011-01-24 12:36 ` [Qemu-devel] " Jan Kiszka 2011-01-10 8:32 ` [PATCH 12/18] kvm: Move irqchip event processing out of inner loop Jan Kiszka 2011-01-10 8:32 ` [Qemu-devel] " Jan Kiszka 2011-01-10 8:32 ` [PATCH 13/18] kvm: Unconditionally reenter kernel after IO exits Jan Kiszka 2011-01-10 8:32 ` [Qemu-devel] " Jan Kiszka 2011-01-10 8:32 ` [PATCH 14/18] kvm: Remove static return code of kvm_handle_io Jan Kiszka 2011-01-10 8:32 ` [Qemu-devel] " Jan Kiszka 2011-01-10 8:32 ` [PATCH 15/18] kvm: Leave kvm_cpu_exec directly after KVM_EXIT_SHUTDOWN Jan Kiszka 2011-01-10 8:32 ` [Qemu-devel] " Jan Kiszka 2011-01-10 8:32 ` [PATCH 16/18] kvm: Separate TCG from KVM cpu execution Jan Kiszka 2011-01-10 8:32 ` [Qemu-devel] " Jan Kiszka 2011-01-10 8:32 ` [PATCH 17/18] kvm: x86: Prepare VCPU loop for in-kernel irqchip Jan Kiszka 2011-01-10 8:32 ` [Qemu-devel] " Jan Kiszka 2011-01-10 8:32 ` [PATCH 18/18] kvm: Drop return values from kvm_arch_pre/post_run Jan Kiszka 2011-01-10 8:32 ` [Qemu-devel] " Jan Kiszka 2011-01-10 10:10 ` [PATCH 00/18] [uq/master] MCE & IO exit fixes, prepare for VCPU loop reuse Jan Kiszka 2011-01-10 10:10 ` [Qemu-devel] " Jan Kiszka
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