KVM: s390: Use Makefile.kvm for common files

Signed-off-by: NDavid Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: NChristian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20211121125451.9489-4-dwmw2@infradead.org>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

arch/s390/kvm/Makefile

@@ -3,13 +3,11 @@
 #
 # Copyright IBM Corp. 2008
 
-KVM := ../../../virt/kvm
-common-objs = $(KVM)/kvm_main.o $(KVM)/eventfd.o  $(KVM)/async_pf.o \
-	      $(KVM)/irqchip.o $(KVM)/vfio.o $(KVM)/binary_stats.o
+include $(srctree)/virt/kvm/Makefile.kvm
 
 ccflags-y := -Ivirt/kvm -Iarch/s390/kvm
 
-kvm-objs := $(common-objs) kvm-s390.o intercept.o interrupt.o priv.o sigp.o
-kvm-objs += diag.o gaccess.o guestdbg.o vsie.o pv.o
+kvm-y += kvm-s390.o intercept.o interrupt.o priv.o sigp.o
+kvm-y += diag.o gaccess.o guestdbg.o vsie.o pv.o
 
 obj-$(CONFIG_KVM) += kvm.o