linux-kernel - Re: [PATCH 0/2] KVM: x86/mmu: Fast CR3 switch improvements

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Message-ID: <d930b38e-4306-4b1c-3bf9-20d1384b6788@redhat.com>
Date:   Mon, 2 Mar 2020 17:20:11 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Sean Christopherson <sean.j.christopherson@...el.com>
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
Subject: Re: [PATCH 0/2] KVM: x86/mmu: Fast CR3 switch improvements

On 28/02/20 23:52, Sean Christopherson wrote:
> Two improvements for fast CR3 switch, implemented with nested VMX in mind,
> but they should be helpful in general.
> 
> Sean Christopherson (2):
>   KVM: x86/mmu: Ignore guest CR3 on fast root switch for direct MMU
>   KVM: x86/mmu: Reuse the current root if possible for fast switch
> 
>  arch/x86/kvm/mmu/mmu.c | 19 +++++++++++++++----
>  1 file changed, 15 insertions(+), 4 deletions(-)
> 

Queued, thanks.

Paolo