[PATCH] KVM: make sure there is a vcpu context loaded when destroying the mmu

This makes the vmwrite errors on vm shutdown go away.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/kvm/kvm_main.c

@@ -272,7 +272,9 @@ static void kvm_free_physmem(struct kvm *kvm)
 
 static void kvm_free_vcpu(struct kvm_vcpu *vcpu)
 {
+	vcpu_load(vcpu->kvm, vcpu_slot(vcpu));
 	kvm_mmu_destroy(vcpu);
+	vcpu_put(vcpu);
 	kvm_arch_ops->vcpu_free(vcpu);
 }