linux-kernel - Re: [PATCH v3 08/12] KVM: SVM: add warning for mistmatch between AVIC state and AVIC access page state

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Message-ID: <ded9040c-a841-319f-0147-92e6fd6264cc@redhat.com>
Date:   Tue, 3 Aug 2021 10:45:48 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Maxim Levitsky <mlevitsk@...hat.com>, kvm@...r.kernel.org
Cc:     Wanpeng Li <wanpengli@...cent.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Joerg Roedel <joro@...tes.org>, Borislav Petkov <bp@...en8.de>,
        Sean Christopherson <seanjc@...gle.com>,
        Jim Mattson <jmattson@...gle.com>,
        "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>,
        "open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)" 
        <linux-kernel@...r.kernel.org>,
        Suravee Suthikulpanit <suravee.suthikulpanit@....com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH v3 08/12] KVM: SVM: add warning for mistmatch between AVIC
 state and AVIC access page state

On 02/08/21 20:33, Maxim Levitsky wrote:
>   
> +	WARN_ON_ONCE(vcpu->kvm->arch.apic_access_memslot_enabled !=
> +		     kvm_vcpu_apicv_active(vcpu));

This should also check !vcpu->kvm->arch.apicv_inhibit_reasons instead of 
apic_access_memslot_enabled.

Paolo