Re: [PATCH] KVM: nVMX: promptly process interrupts delivered while in guest mode

Sean Christopherson
2021-10-20T19:37:45Z

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@vger.kernel.org
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---

Reviewed-by: Sean Christopherson <seanjc@google.com>