On 2012-07-05 04:18, Liu Ping Fan wrote:
> Vcpu state must be set completely before receiving INIT-IPI,SIPI
>
> Signed-off-by: Liu Ping Fan <pingfank@xxxxxxxxxxxxxxxxxx>
> ---
> kvm.h | 1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/kvm.h b/kvm.h
> index 9c7b0ea..5b3c228 100644
> --- a/kvm.h
> +++ b/kvm.h
> @@ -198,6 +198,7 @@ static inline void cpu_synchronize_post_init(CPUArchState *env)
> {
> if (kvm_enabled()) {
> kvm_cpu_synchronize_post_init(env);
> + smp_wmb();
> }
> }
>
>
In theory, there should be no vcpu kick-off after this without some
locking operations involved that imply barriers. Did you see real
inconsistencies without this explicit one?
Jan
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