Commit 45bd07b9 authored by Avi Kivity's avatar Avi Kivity
Browse files

KVM: MMU: make kvm_mmu_reset_context() flush the guest TLB 



kvm_set_cr0() and kvm_set_cr4(), and possible other functions,
assume that kvm_mmu_reset_context() flushes the guest TLB.  However,
it does not.

Fix by flushing the tlb (and syncing the new root as well).

Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 411c588d

arch/x86/kvm/mmu.c

+11 −1
Original line number Diff line number Diff line
@@ -3054,8 +3054,18 @@ static void destroy_kvm_mmu(struct kvm_vcpu *vcpu) 


int kvm_mmu_reset_context(struct kvm_vcpu *vcpu)

{

	int r;



	destroy_kvm_mmu(vcpu);

	return init_kvm_mmu(vcpu);

	r = init_kvm_mmu(vcpu);



	if (r)

		goto err;



	kvm_mmu_sync_roots(vcpu);

	kvm_mmu_flush_tlb(vcpu);

err:

	return r;

}

EXPORT_SYMBOL_GPL(kvm_mmu_reset_context);

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