xen: move Xen-testing predicates to common header

Move xen_domain and related tests out of asm-x86 to xen/xen.h so they
can be included whenever they are necessary.

Signed-off-by: Jeremy Fitzhardinge <[email protected]>
Signed-off-by: Jesse Barnes <[email protected]>

drivers/xen/balloon.c

@@ -52,6 +52,8 @@
 
 #include <asm/xen/hypervisor.h>
 #include <asm/xen/hypercall.h>
+
+#include <xen/xen.h>
 #include <xen/interface/xen.h>
 #include <xen/interface/memory.h>
 #include <xen/xenbus.h>

drivers/xen/cpu_hotplug.c

@@ -1,5 +1,6 @@
 #include <linux/notifier.h>
 
+#include <xen/xen.h>
 #include <xen/xenbus.h>
 
 #include <asm/xen/hypervisor.h>

drivers/xen/evtchn.c

@@ -48,6 +48,8 @@
 #include <linux/gfp.h>
 #include <linux/mutex.h>
 #include <linux/cpu.h>
+
+#include <xen/xen.h>
 #include <xen/events.h>
 #include <xen/evtchn.h>
 #include <asm/xen/hypervisor.h>

drivers/xen/grant-table.c

@@ -37,6 +37,7 @@
 #include <linux/vmalloc.h>
 #include <linux/uaccess.h>
 
+#include <xen/xen.h>
 #include <xen/interface/xen.h>
 #include <xen/page.h>
 #include <xen/grant_table.h>

drivers/xen/sys-hypervisor.c

@@ -14,6 +14,7 @@
 #include <asm/xen/hypervisor.h>
 #include <asm/xen/hypercall.h>
 
+#include <xen/xen.h>
 #include <xen/xenbus.h>
 #include <xen/interface/xen.h>
 #include <xen/interface/version.h>

drivers/xen/xenbus/xenbus_probe.c

@@ -49,6 +49,8 @@
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <asm/xen/hypervisor.h>
+
+#include <xen/xen.h>
 #include <xen/xenbus.h>
 #include <xen/events.h>
 #include <xen/page.h>

drivers/xen/xenfs/super.c

@@ -13,6 +13,8 @@
 #include <linux/fs.h>
 #include <linux/magic.h>
 
+#include <xen/xen.h>
+
 #include "xenfs.h"
 
 #include <asm/xen/hypervisor.h>