KVM: PPC: Exit guest context while handling exit

The x86 implementation of KVM accounts for host time while processing
guest exits. Do the same for us.
Signed-off-by: Alexander Graf <agraf@suse.de>

arch/powerpc/kvm/book3s_pr.c

@@ -601,6 +601,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	__hard_irq_enable();
 
 	trace_kvm_exit(exit_nr, vcpu);
+	kvm_guest_exit();
 	preempt_enable();
 
 	switch (exit_nr) {
@@ -872,6 +873,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
 		}
 	}
 
+	kvm_guest_enter();
 	trace_kvm_book3s_reenter(r, vcpu);
 
 	return r;

arch/powerpc/kvm/booke.c

@@ -650,6 +650,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	local_irq_enable();
 
 	trace_kvm_exit(exit_nr, vcpu);
+	kvm_guest_exit();
 
 	run->exit_reason = KVM_EXIT_UNKNOWN;
 	run->ready_for_interrupt_injection = 1;
@@ -952,6 +953,8 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
 		}
 	}
 
+	kvm_guest_enter();
+
 	return r;
 }