linux-kernel - Re: [PATCH v2 03/14] KVM: SVM: Move SEV module params/variables to sev.c

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Date:   Thu, 14 Jan 2021 13:07:33 -0600
From:   Tom Lendacky <thomas.lendacky@....com>
To:     Sean Christopherson <seanjc@...gle.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>
Cc:     Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Borislav Petkov <bp@...e.de>,
        Brijesh Singh <brijesh.singh@....com>
Subject: Re: [PATCH v2 03/14] KVM: SVM: Move SEV module params/variables to
 sev.c

On 1/13/21 6:36 PM, Sean Christopherson wrote:
> Unconditionally invoke sev_hardware_setup() when configuring SVM and
> handle clearing the module params/variable 'sev' and 'sev_es' in
> sev_hardware_setup().  This allows making said variables static within
> sev.c and reduces the odds of a collision with guest code, e.g. the guest
> side of things has already laid claim to 'sev_enabled'.
> 
> Signed-off-by: Sean Christopherson <seanjc@...gle.com>

Reviewed-by: Tom Lendacky <thomas.lendacky@....com>

> ---
>   arch/x86/kvm/svm/sev.c | 11 +++++++++++
>   arch/x86/kvm/svm/svm.c | 15 +--------------
>   arch/x86/kvm/svm/svm.h |  2 --
>   3 files changed, 12 insertions(+), 16 deletions(-)
>