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kvm: set cpu_single_env around KVM_RUN ioctl

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Zero cpu_single_env before leaving global lock protection, and
restore on return.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Marcelo Tosatti 2010-05-04 09:45:19 -03:00
parent 618a568da4
commit 273faf1b6d
1 changed files with 2 additions and 0 deletions
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2
kvm-all.c
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@ -838,9 +838,11 @@ int kvm_cpu_exec(CPUState *env)
}
kvm_arch_pre_run(env, run);
cpu_single_env = NULL;
qemu_mutex_unlock_iothread();
ret = kvm_vcpu_ioctl(env, KVM_RUN, 0);
qemu_mutex_lock_iothread();
cpu_single_env = env;
kvm_arch_post_run(env, run);
if (ret == -EINTR || ret == -EAGAIN) {