linux-kernel - Re: [PATCH v2 2/3] KVM: LAPIC: lapic timer interrupt is injected by posted interrupt

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Message-ID: <c5530947-d48d-e3da-3056-ed64f7fa9a9d@redhat.com>
Date:   Tue, 11 Jun 2019 13:40:03 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Wanpeng Li <kernellwp@...il.com>, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org
Cc:     Radim Krčmář <rkrcmar@...hat.com>
Subject: Re: [PATCH v2 2/3] KVM: LAPIC: lapic timer interrupt is injected by
 posted interrupt

On 06/06/19 07:31, Wanpeng Li wrote:
> +static inline bool can_posted_interrupt_inject_timer(struct kvm_vcpu *vcpu)
> +{
> +	return posted_interrupt_inject_timer_enabled(vcpu) &&
> +		!vcpu_halt_in_guest(vcpu);
> +}
> +

I agree with Radim, what you want here is just use kvm_hlt_in_guest.

I'll post shortly a prerequisite patch to block APF artificial halt when
kvm_hlt_in_guest is true.

Paolo