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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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