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do not issue ioctl from within the io thread 

According to Documentation/kvm/api.txt, (and well, to common sense),
we should not be calling vcpu ioctls from within the iothread.
Since vcpu initialization issues a vcpu ioctl, move it a little bit
further in time to prevent it.

Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Glauber Costa 2009-08-25 18:13:36 -04:00 committed by Anthony Liguori
parent 67b3b71d51
commit 4e2f73ce3d
1 changed files with 1 additions and 1 deletions
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2
vl.c
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@ -3749,6 +3749,7 @@ static void *kvm_cpu_thread_fn(void *arg)
block_io_signals();
qemu_thread_self(env->thread);
kvm_init_vcpu(env);
/* signal CPU creation */
qemu_mutex_lock(&qemu_global_mutex);
@ -3944,7 +3945,6 @@ static void tcg_init_vcpu(void *_env)
static void kvm_start_vcpu(CPUState *env)
{
kvm_init_vcpu(env);
env->thread = qemu_mallocz(sizeof(QemuThread));
env->halt_cond = qemu_mallocz(sizeof(QemuCond));
qemu_cond_init(env->halt_cond);