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KVM: x86/mmu: Add separate override for MMU sync during fast CR3 switch

Telusuri Sumber 
Add a separate "skip" override for MMU sync, a future change to avoid
TLB flushes on nested VMX transitions may need to sync the MMU even if
the TLB flush is unnecessary.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200320212833.3507-32-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson
2020-03-20 14:28:27 -07:00
committed by Paolo Bonzini
orang tua b869855bad
melakukan 4a632ac6ca
4 mengubah file dengan 11 tambahan dan 9 penghapusan
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2
arch/x86/kvm/vmx/nested.c
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@@ -1101,7 +1101,7 @@ static int nested_vmx_load_cr3(struct kvm_vcpu *vcpu, unsigned long cr3, bool ne
}
if (!nested_ept)
kvm_mmu_new_cr3(vcpu, cr3, false);
kvm_mmu_new_cr3(vcpu, cr3, false, false);
vcpu->arch.cr3 = cr3;
kvm_register_mark_available(vcpu, VCPU_EXREG_CR3);