KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_get_mpstate

Move vcpu_load() and vcpu_put() into the architecture specific
implementations of kvm_arch_vcpu_ioctl_get_mpstate().

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index d27a1dd..4297f50 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -2833,9 +2833,16 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
 int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
 				    struct kvm_mp_state *mp_state)
 {
+	int ret;
+
+	vcpu_load(vcpu);
+
 	/* CHECK_STOP and LOAD are not supported yet */
-	return is_vcpu_stopped(vcpu) ? KVM_MP_STATE_STOPPED :
-				       KVM_MP_STATE_OPERATING;
+	ret = is_vcpu_stopped(vcpu) ? KVM_MP_STATE_STOPPED :
+				      KVM_MP_STATE_OPERATING;
+
+	vcpu_put(vcpu);
+	return ret;
 }
 
 int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,