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SubjectRe: [PATCH v3 4/4] KVM: Add flush_on_enter before guest enter
On Fri, Nov 10, 2017 at 01:49:47AM -0800, Wanpeng Li wrote:
> @@ -2887,7 +2899,7 @@ static void kvm_steal_time_set_preempted(struct kvm_vcpu *vcpu)
> if (!(vcpu->arch.st.msr_val & KVM_MSR_ENABLED))
> return;
>
> - vcpu->arch.st.steal.preempted = KVM_VCPU_PREEMPTED;
> + vcpu->arch.st.steal.preempted |= KVM_VCPU_PREEMPTED;

I don't understand this one... If there is concurrency its wrong, if
there is no concurrency it still doesn't make sense as there should not
be any FLUSH flags to preserve..

>
> kvm_write_guest_offset_cached(vcpu->kvm, &vcpu->arch.st.stime,
> &vcpu->arch.st.steal.preempted,

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