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[Qemu-devel] [PATCH 11/18] Introduce VCPU self-signaling service
From: |
Jan Kiszka |
Subject: |
[Qemu-devel] [PATCH 11/18] Introduce VCPU self-signaling service |
Date: |
Mon, 10 Jan 2011 09:32:04 +0100 |
From: Jan Kiszka <address@hidden>
Introduce qemu_cpu_kick_self to send SIG_IPI to the calling VCPU
context. First user will be kvm.
Signed-off-by: Jan Kiszka <address@hidden>
---
cpus.c | 19 ++++++++++++++++++-
qemu-common.h | 1 +
2 files changed, 19 insertions(+), 1 deletions(-)
diff --git a/cpus.c b/cpus.c
index 89b4bd7..4a4d130 100644
--- a/cpus.c
+++ b/cpus.c
@@ -450,7 +450,17 @@ void pause_all_vcpus(void)
void qemu_cpu_kick(void *env)
{
- return;
+}
+
+void qemu_cpu_kick_self(void)
+{
+#ifndef _WIN32
+ assert(cpu_single_env);
+
+ raise(SIG_IPI);
+#else
+ abort();
+#endif
}
void qemu_notify_event(void)
@@ -789,6 +799,13 @@ void qemu_cpu_kick(void *_env)
qemu_thread_signal(env->thread, SIG_IPI);
}
+void qemu_cpu_kick_self(void)
+{
+ assert(cpu_single_env);
+
+ qemu_thread_signal(cpu_single_env->thread, SIG_IPI);
+}
+
int qemu_cpu_self(void *_env)
{
CPUState *env = _env;
diff --git a/qemu-common.h b/qemu-common.h
index 63d9943..220c8c8 100644
--- a/qemu-common.h
+++ b/qemu-common.h
@@ -287,6 +287,7 @@ void qemu_notify_event(void);
/* Unblock cpu */
void qemu_cpu_kick(void *env);
+void qemu_cpu_kick_self(void);
int qemu_cpu_self(void *env);
/* work queue */
--
1.7.1
- [Qemu-devel] [PATCH 06/18] kvm: Refactor qemu_kvm_eat_signals, (continued)
- [Qemu-devel] [PATCH 06/18] kvm: Refactor qemu_kvm_eat_signals, Jan Kiszka, 2011/01/10
- [Qemu-devel] [PATCH 09/18] Refactor kvm&tcg function names in cpus.c, Jan Kiszka, 2011/01/10
- [Qemu-devel] [PATCH 10/18] Fix a few coding style violations in cpus.c, Jan Kiszka, 2011/01/10
- [Qemu-devel] [PATCH 13/18] kvm: Unconditionally reenter kernel after IO exits, Jan Kiszka, 2011/01/10
- [Qemu-devel] [PATCH 15/18] kvm: Leave kvm_cpu_exec directly after KVM_EXIT_SHUTDOWN, Jan Kiszka, 2011/01/10
- [Qemu-devel] [PATCH 17/18] kvm: x86: Prepare VCPU loop for in-kernel irqchip, Jan Kiszka, 2011/01/10
- [Qemu-devel] [PATCH 02/18] kvm: Drop redundant kvm_enabled from kvm_cpu_thread_fn, Jan Kiszka, 2011/01/10
- [Qemu-devel] [PATCH 01/18] Revert "kvm: Drop return value of kvm_cpu_exec", Jan Kiszka, 2011/01/10
- [Qemu-devel] [PATCH 05/18] kvm: Set up signal mask also for !CONFIG_IOTHREAD, Jan Kiszka, 2011/01/10
- [Qemu-devel] [PATCH 11/18] Introduce VCPU self-signaling service,
Jan Kiszka <=
- [Qemu-devel] [PATCH 18/18] kvm: Drop return values from kvm_arch_pre/post_run, Jan Kiszka, 2011/01/10
- [Qemu-devel] [PATCH 16/18] kvm: Separate TCG from KVM cpu execution, Jan Kiszka, 2011/01/10
- [Qemu-devel] [PATCH 14/18] kvm: Remove static return code of kvm_handle_io, Jan Kiszka, 2011/01/10
- [Qemu-devel] [PATCH 12/18] kvm: Move irqchip event processing out of inner loop, Jan Kiszka, 2011/01/10
- [Qemu-devel] [PATCH 07/18] kvm: Add MCE signal support for !CONFIG_IOTHREAD, Jan Kiszka, 2011/01/10