linux-kernel - Re: [PATCH v5 08/34] KVM: SVM: Prevent debugging under SEV-ES

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Message-ID: <98928403-7b70-74bc-e647-0f1a71ec98ca@redhat.com>
Date:   Mon, 14 Dec 2020 16:35:52 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Tom Lendacky <thomas.lendacky@....com>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, x86@...nel.org
Cc:     Jim Mattson <jmattson@...gle.com>, Joerg Roedel <joro@...tes.org>,
        Sean Christopherson <seanjc@...gle.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Borislav Petkov <bp@...en8.de>, Ingo Molnar <mingo@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Brijesh Singh <brijesh.singh@....com>
Subject: Re: [PATCH v5 08/34] KVM: SVM: Prevent debugging under SEV-ES

On 10/12/20 18:09, Tom Lendacky wrote:
> +static inline bool sev_guest(struct kvm *kvm)
> +{
> +#ifdef CONFIG_KVM_AMD_SEV
> +	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
> +
> +	return sev->active;
> +#else
> +	return false;
> +#endif
> +}
> +
> +static inline bool sev_es_guest(struct kvm *kvm)
> +{
> +#ifdef CONFIG_KVM_AMD_SEV
> +	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
> +
> +	return sev_guest(kvm) && sev->es_active;
> +#else
> +	return false;
> +#endif
> +}
> +

This code movement could have been done before.

Paolo