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

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Date:   Fri, 28 Feb 2020 14:52:38 -0800
From:   Sean Christopherson <sean.j.christopherson@...el.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     Sean Christopherson <sean.j.christopherson@...el.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: [PATCH 0/2] KVM: x86/mmu: Fast CR3 switch improvements

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(-)

-- 
2.24.1