From 25f8f6b4c295940ae5d83c19509353afc1dbc9a4 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Mon, 13 Jun 2016 11:12:21 +0200
Subject: [PATCH] xen: move xen_sysdev to xen_backend.c

Commit 9432e53a5bc88681b2d3aec4dac9db07c5476d1b added xen_sysdev as a
system device to serve as an anchor for removable virtual buses. This
introduced a build failure for non-x86 builds with CONFIG_XEN_BACKEND
set, as xen_sysdev was defined in a x86 specific file while being
consumed in an architecture independent source.

Move the xen_sysdev definition and initialization to xen_backend.c to
avoid the build failure.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
---
 hw/xen/xen_backend.c      | 41 +++++++++++++++++++++++++++++++++++++++
 hw/xenpv/xen_machine_pv.c | 40 --------------------------------------
 2 files changed, 41 insertions(+), 40 deletions(-)

diff --git a/hw/xen/xen_backend.c b/hw/xen/xen_backend.c
index e7ce724567..bab79b1912 100644
--- a/hw/xen/xen_backend.c
+++ b/hw/xen/xen_backend.c
@@ -26,12 +26,17 @@
 #include <sys/signal.h>
 
 #include "hw/hw.h"
+#include "hw/sysbus.h"
 #include "sysemu/char.h"
 #include "qemu/log.h"
 #include "hw/xen/xen_backend.h"
 
 #include <xen/grant_table.h>
 
+#define TYPE_XENSYSDEV "xensysdev"
+
+DeviceState *xen_sysdev;
+
 /* ------------------------------------------------------------- */
 
 /* public */
@@ -762,6 +767,10 @@ int xen_be_init(void)
         /* Check if xen_init() have been called */
         goto err;
     }
+
+    xen_sysdev = qdev_create(NULL, TYPE_XENSYSDEV);
+    qdev_init_nofail(xen_sysdev);
+
     return 0;
 
 err:
@@ -862,3 +871,35 @@ void xen_be_printf(struct XenDevice *xendev, int msg_level, const char *fmt, ...
     }
     qemu_log_flush();
 }
+
+static int xen_sysdev_init(SysBusDevice *dev)
+{
+    return 0;
+}
+
+static Property xen_sysdev_properties[] = {
+    {/* end of property list */},
+};
+
+static void xen_sysdev_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+
+    k->init = xen_sysdev_init;
+    dc->props = xen_sysdev_properties;
+}
+
+static const TypeInfo xensysdev_info = {
+    .name          = TYPE_XENSYSDEV,
+    .parent        = TYPE_SYS_BUS_DEVICE,
+    .instance_size = sizeof(SysBusDevice),
+    .class_init    = xen_sysdev_class_init,
+};
+
+static void xenbe_register_types(void)
+{
+    type_register_static(&xensysdev_info);
+}
+
+type_init(xenbe_register_types);
diff --git a/hw/xenpv/xen_machine_pv.c b/hw/xenpv/xen_machine_pv.c
index f68cf48a29..48f725c9cd 100644
--- a/hw/xenpv/xen_machine_pv.c
+++ b/hw/xenpv/xen_machine_pv.c
@@ -25,15 +25,10 @@
 #include "qemu/osdep.h"
 #include "hw/hw.h"
 #include "hw/boards.h"
-#include "hw/sysbus.h"
 #include "hw/xen/xen_backend.h"
 #include "xen_domainbuild.h"
 #include "sysemu/block-backend.h"
 
-#define TYPE_XENSYSDEV "xensysdev"
-
-DeviceState *xen_sysdev;
-
 static void xen_init_pv(MachineState *machine)
 {
     DriveInfo *dinfo;
@@ -72,9 +67,6 @@ static void xen_init_pv(MachineState *machine)
         break;
     }
 
-    xen_sysdev = qdev_create(NULL, TYPE_XENSYSDEV);
-    qdev_init_nofail(xen_sysdev);
-
     xen_be_register("console", &xen_console_ops);
     xen_be_register("vkbd", &xen_kbdmouse_ops);
     xen_be_register("vfb", &xen_framebuffer_ops);
@@ -112,38 +104,6 @@ static void xen_init_pv(MachineState *machine)
     xen_init_display(xen_domid);
 }
 
-static int xen_sysdev_init(SysBusDevice *dev)
-{
-    return 0;
-}
-
-static Property xen_sysdev_properties[] = {
-    {/* end of property list */},
-};
-
-static void xen_sysdev_class_init(ObjectClass *klass, void *data)
-{
-    DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
-
-    k->init = xen_sysdev_init;
-    dc->props = xen_sysdev_properties;
-}
-
-static const TypeInfo xensysdev_info = {
-    .name          = TYPE_XENSYSDEV,
-    .parent        = TYPE_SYS_BUS_DEVICE,
-    .instance_size = sizeof(SysBusDevice),
-    .class_init    = xen_sysdev_class_init,
-};
-
-static void xenpv_register_types(void)
-{
-    type_register_static(&xensysdev_info);
-}
-
-type_init(xenpv_register_types);
-
 static void xenpv_machine_init(MachineClass *mc)
 {
     mc->desc = "Xen Para-virtualized PC";