linux-kernel - Re: [PATCH v2 9/9] x86/kvm/mmu: check if MMU reconfiguration is needed in init_kvm_nested

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Message-ID: <20180926151711.GK27433@linux.intel.com>
Date:   Wed, 26 Sep 2018 08:17:11 -0700
From:   Sean Christopherson <sean.j.christopherson@...el.com>
To:     Vitaly Kuznetsov <vkuznets@...hat.com>
Cc:     kvm@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Jim Mattson <jmattson@...gle.com>,
        Liran Alon <liran.alon@...cle.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 9/9] x86/kvm/mmu: check if MMU reconfiguration is
 needed in init_kvm_nested_mmu()

On Tue, Sep 25, 2018 at 07:58:44PM +0200, Vitaly Kuznetsov wrote:
> We don't use root page role for nested_mmu, however, optimizing out
> re-initialization in case nothing changed is still valuable as this
> is done for every nested vmentry.
> 
> Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>
> ---

Reviewed-by: Sean Christopherson <sean.j.christopherson@...el.com>