--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/arch/x86/include/asm/cpu.h	Sun Jan 11 20:20:11 2009 +0100
@@ -0,0 +1,20 @@
+#ifndef _ASM_X86_CPU_H
+#define _ASM_X86_CPU_H
+
+#include <linux/device.h>
+#include <linux/cpu.h>
+#include <linux/topology.h>
+#include <linux/nodemask.h>
+#include <linux/percpu.h>
+
+struct x86_cpu {
+	struct cpu cpu;
+};
+
+#ifdef CONFIG_HOTPLUG_CPU
+extern int arch_register_cpu(int num);
+extern void arch_unregister_cpu(int);
+#endif
+
+DECLARE_PER_CPU(int, cpu_state);
+#endif /* _ASM_X86_CPU_H */