linux-kernel - Re: [PATCH 20/43] KVM: SVM: Don't bother writing vmcb->save.rip at vCPU RESET/INIT

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Message-ID: <CAAeT=FzHOCDH3-vZWOx798x6pGekCgjD8w1m8xPbrPh-ddR+vA@mail.gmail.com>
Date:   Tue, 18 May 2021 22:34:11 -0700
From:   Reiji Watanabe <reijiw@...gle.com>
To:     Sean Christopherson <seanjc@...gle.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        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
Subject: Re: [PATCH 20/43] KVM: SVM: Don't bother writing vmcb->save.rip at
 vCPU RESET/INIT

On Fri, Apr 23, 2021 at 5:51 PM Sean Christopherson <seanjc@...gle.com> wrote:
>
> Remove unnecessary initialization of vmcb->save.rip during vCPU RESET/INIT,
> as svm_vcpu_run() unconditionally propagates VCPU_REGS_RIP to save.rip.
>
> No true functional change intended.
>
> Signed-off-by: Sean Christopherson <seanjc@...gle.com>

Reviewed-by: Reiji Watanabe <reijiw@...gle.com>