From: Gleb Natapov <g...@redhat.com>
Otherwise some cpus may start executing code before others
are fully initialized.
Signed-off-by: Gleb Natapov <g...@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosa...@redhat.com>
diff --git a/qemu-kvm.c b/qemu-kvm.c
index 15b9129..b6c36e0 100644
--- a/qemu-kvm.c
+++ b/qemu-kvm.c
@@ -1924,18 +1924,6 @@ static void process_irqchip_events(CPUState *env)
static int kvm_main_loop_cpu(CPUState *env)
{
- setup_kernel_sigmask(env);
-
- pthread_mutex_lock(&qemu_mutex);
-
- kvm_arch_init_vcpu(env);
-#ifdef TARGET_I386
- kvm_tpr_vcpu_start(env);
-#endif
-
- cpu_single_env = env;
- kvm_arch_load_regs(env);
-
while (1) {
int run_cpu = !is_cpu_stopped(env);
if (run_cpu && !kvm_irqchip_in_kernel()) {
@@ -1973,15 +1961,28 @@ static void *ap_main_loop(void *_env)
on_vcpu(env, kvm_arch_do_ioperm, data);
#endif
- /* signal VCPU creation */
+ setup_kernel_sigmask(env);
+
pthread_mutex_lock(&qemu_mutex);
+ cpu_single_env = env;
+
+ kvm_arch_init_vcpu(env);
+#ifdef TARGET_I386
+ kvm_tpr_vcpu_start(env);
+#endif
+
+ kvm_arch_load_regs(env);
+
+ /* signal VCPU creation */
current_env->created = 1;
pthread_cond_signal(&qemu_vcpu_cond);
/* and wait for machine initialization */
while (!qemu_system_ready)
qemu_cond_wait(&qemu_system_cond);
- pthread_mutex_unlock(&qemu_mutex);
+
+ /* re-initialize cpu_single_env after re-acquiring qemu_mutex */
+ cpu_single_env = env;
kvm_main_loop_cpu(env);
return NULL;
--
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