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    Subject[PATCH 28/46] KVM: Discard unnecessary kvm_mmu_flush_tlb() in kvm_mmu_load()
    Date
    From: Sheng Yang <sheng@linux.intel.com>

    set_cr3() should already cover the TLB flushing.

    Signed-off-by: Sheng Yang <sheng@linux.intel.com>
    Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
    ---
    arch/x86/kvm/mmu.c | 2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)

    diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
    index f1f0815..87c67f4 100644
    --- a/arch/x86/kvm/mmu.c
    +++ b/arch/x86/kvm/mmu.c
    @@ -2373,8 +2373,8 @@ int kvm_mmu_load(struct kvm_vcpu *vcpu)
    spin_unlock(&vcpu->kvm->mmu_lock);
    if (r)
    goto out;
    + /* set_cr3() should ensure TLB has been flushed */
    kvm_x86_ops->set_cr3(vcpu, vcpu->arch.mmu.root_hpa);
    - kvm_mmu_flush_tlb(vcpu);
    out:
    return r;
    }
    --
    1.6.4.1


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