This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / xen / cpu_hotplug.h

diff --git a/include/xen/cpu_hotplug.h b/include/xen/cpu_hotplug.h
new file mode 100644 (file)
index 0000000..fad14d8
--- /dev/null
+++ b/include/xen/cpu_hotplug.h
@@ -0,0 +1,44 @@
+#ifndef __XEN_CPU_HOTPLUG_H__
+#define __XEN_CPU_HOTPLUG_H__
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/cpumask.h>
+
+#if defined(CONFIG_HOTPLUG_CPU)
+
+#if defined(CONFIG_X86)
+void cpu_initialize_context(unsigned int cpu);
+#else
+#define cpu_initialize_context(cpu)    ((void)0)
+#endif
+
+int cpu_up_check(unsigned int cpu);
+void init_xenbus_allowed_cpumask(void);
+int smp_suspend(void);
+void smp_resume(void);
+
+void cpu_bringup(void);
+
+#else /* !defined(CONFIG_HOTPLUG_CPU) */
+
+#define cpu_up_check(cpu)              (0)
+#define init_xenbus_allowed_cpumask()  ((void)0)
+
+static inline int smp_suspend(void)
+{
+       if (num_online_cpus() > 1) {
+               printk(KERN_WARNING "Can't suspend SMP guests "
+                      "without CONFIG_HOTPLUG_CPU\n");
+               return -EOPNOTSUPP;
+       }
+       return 0;
+}
+
+static inline void smp_resume(void)
+{
+}
+
+#endif /* !defined(CONFIG_HOTPLUG_CPU) */
+
+#endif /* __XEN_CPU_HOTPLUG_H__ */