meson: convert hw/xen

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

configure

@@ -2740,6 +2740,8 @@ if test "$xen" != "no" ; then
     fi
     QEMU_CFLAGS="$QEMU_CFLAGS $($pkg_config --cflags $xen_pc)"
     libs_softmmu="$($pkg_config --libs $xen_pc) $libs_softmmu"
+    xen_cflags="$($pkg_config --cflags $xen_pc)"
+    xen_libs="$($pkg_config --libs $xen_pc)"
   else
 
     xen_libs="-lxenstore -lxenctrl -lxenguest"
@@ -3020,9 +3022,8 @@ EOF
 
     if test "$xen" = yes; then
       if test $xen_ctrl_version -ge 40701  ; then
-        libs_softmmu="$xen_stable_libs $libs_softmmu"
+        xen_libs="$xen_libs $xen_stable_libs "
       fi
-      libs_softmmu="$xen_libs $libs_softmmu"
     fi
   fi
 fi
@@ -7313,6 +7314,8 @@ fi
 if test "$xen" = "yes" ; then
   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
+  echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
+  echo "XEN_LIBS=$xen_libs" >> $config_host_mak
 fi
 if test "$linux_aio" = "yes" ; then
   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak

hw/Makefile.objs

@@ -35,7 +35,6 @@ devices-dirs-y += usb/
 devices-dirs-$(CONFIG_VFIO) += vfio/
 devices-dirs-y += virtio/
 devices-dirs-y += watchdog/
-devices-dirs-$(CONFIG_XEN) += xen/
 devices-dirs-$(CONFIG_MEM_DEVICE) += mem/
 devices-dirs-$(CONFIG_NUBUS) += nubus/
 devices-dirs-y += semihosting/

hw/meson.build

@@ -0,0 +1 @@
+subdir('xen')

hw/xen/Makefile.objs

@@ -1,7 +0,0 @@
-# xen backend driver support
-common-obj-y += xen-legacy-backend.o xen_devconfig.o xen_pvdev.o xen-bus.o xen-bus-helper.o xen-backend.o
-
-obj-$(CONFIG_XEN_PCI_PASSTHROUGH) += xen-host-pci-device.o
-obj-$(CONFIG_XEN_PCI_PASSTHROUGH) += xen_pt.o xen_pt_config_init.o xen_pt_graphics.o xen_pt_msi.o
-obj-$(CONFIG_XEN_PCI_PASSTHROUGH) += xen_pt_load_rom.o
-obj-$(call lnot,$(CONFIG_XEN_PCI_PASSTHROUGH)) += xen_pt_stub.o

hw/xen/meson.build

@@ -0,0 +1,20 @@
+softmmu_ss.add(when: ['CONFIG_XEN', xen], if_true: files(
+  'xen-backend.c',
+  'xen-bus-helper.c',
+  'xen-bus.c',
+  'xen-legacy-backend.c',
+  'xen_devconfig.c',
+  'xen_pvdev.c',
+))
+
+xen_specific_ss = ss.source_set()
+xen_specific_ss.add(when: 'CONFIG_XEN_PCI_PASSTHROUGH', if_true: files(
+  'xen-host-pci-device.c',
+  'xen_pt.c',
+  'xen_pt_config_init.c',
+  'xen_pt_graphics.c',
+  'xen_pt_load_rom.c',
+  'xen_pt_msi.c',
+), if_false: files('xen_pt_stub.c'))
+
+specific_ss.add_all(when: ['CONFIG_XEN', xen], if_true: xen_specific_ss)

meson.build

@@ -325,6 +325,11 @@ numa = not_found
 if 'CONFIG_NUMA' in config_host
   numa = declare_dependency(link_args: config_host['NUMA_LIBS'].split())
 endif
+xen = not_found
+if 'CONFIG_XEN_BACKEND' in config_host
+  xen = declare_dependency(compile_args: config_host['XEN_CFLAGS'].split(),
+                           link_args: config_host['XEN_LIBS'].split())
+endif
 
 create_config = find_program('scripts/create_config')
 minikconf = find_program('scripts/minikconf.py')
@@ -678,6 +683,7 @@ subdir('migration')
 subdir('monitor')
 subdir('net')
 subdir('replay')
+subdir('hw')
 
 # needed for fuzzing binaries
 subdir('tests/qtest/libqos')