On Wed, Oct 20, 2021, Paolo Bonzini wrote:
> Since commit c300ab9f08df ("KVM: x86: Replace late check_nested_events() hack with
> more precise fix") there is no longer the certainty that check_nested_events()
> tries to inject an external interrupt vmexit to L1 on every call to vcpu_enter_guest.
> Therefore, even in that case we need to set KVM_REQ_EVENT. This ensures
> that inject_pending_event() is called, and from there kvm_check_nested_events().
>
> Fixes: c300ab9f08df ("KVM: x86: Replace late check_nested_events() hack with more precise fix")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
> ---
Reviewed-by: Sean Christopherson <seanjc@xxxxxxxxxx>
