diff --git a/arch/x86/include/arch/apicdef.h b/arch/x86/include/arch/apicdef.h
new file mode 100644
index 0000000..242c45e
--- /dev/null
+++ b/arch/x86/include/arch/apicdef.h
@@ -0,0 +1,392 @@
+#ifndef __ASM_APICDEF_H
+#define __ASM_APICDEF_H
+
+/*
+ * Constants for various Intel APICs. (local APIC, IOAPIC, etc.)
+ *
+ * Alan Cox <Alan.Cox@linux.org>, 1995.
+ * Ingo Molnar <mingo@redhat.com>, 1999, 2000
+ */
+
+#define		APIC_DEFAULT_PHYS_BASE	0xfee00000
+ 
+#define		APIC_ID		0x20
+#define			APIC_ID_MASK		(0xFFu<<24)
+#define			GET_xAPIC_ID(x)		(((x)>>24)&0xFFu)
+#define			SET_xAPIC_ID(x)		(((x)<<24))
+#define		APIC_LVR	0x30
+#define			APIC_LVR_MASK		0xFF00FF
+#define			APIC_LVR_DIRECTED_EOI	(1 << 24)
+#define			GET_APIC_VERSION(x)	((x)&0xFF)
+#define			GET_APIC_MAXLVT(x)	(((x)>>16)&0xFF)
+#define			APIC_INTEGRATED(x)	((x)&0xF0)
+#define			APIC_XAPIC(x)		((x) >= 0x14)
+#define		APIC_TASKPRI	0x80
+#define			APIC_TPRI_MASK		0xFF
+#define		APIC_ARBPRI	0x90
+#define			APIC_ARBPRI_MASK	0xFF
+#define		APIC_PROCPRI	0xA0
+#define		APIC_EOI	0xB0
+#define			APIC_EIO_ACK		0x0		/* Write this to the EOI register */
+#define		APIC_RRR	0xC0
+#define		APIC_LDR	0xD0
+#define			APIC_LDR_MASK		(0xFFu<<24)
+#define			GET_xAPIC_LOGICAL_ID(x)	(((x)>>24)&0xFF)
+#define			SET_xAPIC_LOGICAL_ID(x)	(((x)<<24))
+#define			APIC_ALL_CPUS		0xFF
+#define		APIC_DFR	0xE0
+#define			APIC_DFR_CLUSTER		0x0FFFFFFFul
+#define			APIC_DFR_FLAT			0xFFFFFFFFul
+#define		APIC_SPIV	0xF0
+#define			APIC_SPIV_FOCUS_DISABLED	(1<<9)
+#define			APIC_SPIV_APIC_ENABLED		(1<<8)
+#define			APIC_SPIV_DIRECTED_EOI		(1<<12)
+#define		APIC_ISR	0x100
+#define         APIC_ISR_NR     0x8     /* Number of 32 bit ISR registers. */
+#define		APIC_TMR	0x180
+#define 	APIC_IRR	0x200
+#define 	APIC_ESR	0x280
+#define			APIC_ESR_SEND_CS	0x00001
+#define			APIC_ESR_RECV_CS	0x00002
+#define			APIC_ESR_SEND_ACC	0x00004
+#define			APIC_ESR_RECV_ACC	0x00008
+#define			APIC_ESR_SENDILL	0x00020
+#define			APIC_ESR_RECVILL	0x00040
+#define			APIC_ESR_ILLREGA	0x00080
+#define		APIC_ICR	0x300
+#define			APIC_DEST_NOSHORT	0x00000
+#define			APIC_DEST_SELF		0x40000
+#define			APIC_DEST_ALLINC	0x80000
+#define			APIC_DEST_ALLBUT	0xC0000
+#define			APIC_SHORT_MASK		0xC0000
+#define			APIC_ICR_RR_MASK	0x30000
+#define			APIC_ICR_RR_INVALID	0x00000
+#define			APIC_ICR_RR_INPROG	0x10000
+#define			APIC_ICR_RR_VALID	0x20000
+#define			APIC_INT_LEVELTRIG	0x08000
+#define			APIC_INT_ASSERT		0x04000
+#define			APIC_ICR_BUSY		0x01000
+#define			APIC_DEST_MASK		0x00800
+#define			APIC_DEST_LOGICAL	0x00800
+#define			APIC_DEST_PHYSICAL	0x00000
+#define			APIC_DM_FIXED		0x00000
+#define			APIC_DM_LOWEST		0x00100
+#define			APIC_DM_SMI		0x00200
+#define			APIC_DM_REMRD		0x00300
+#define			APIC_DM_NMI		0x00400
+#define			APIC_DM_INIT		0x00500
+#define			APIC_DM_STARTUP		0x00600
+#define			APIC_DM_EXTINT		0x00700
+#define			APIC_VECTOR_MASK	0x000FF
+#define		APIC_ICR2	0x310
+#define			GET_xAPIC_DEST_FIELD(x)	(((x)>>24)&0xFF)
+#define			SET_xAPIC_DEST_FIELD(x)	((x)<<24)
+#define		APIC_LVTT	0x320
+#define		APIC_LVTTHMR	0x330
+#define		APIC_LVTPC	0x340
+#define		APIC_LVT0	0x350
+#define		APIC_CMCI	0x2F0
+
+#define			APIC_TIMER_MODE_MASK		(0x3<<17)
+#define			APIC_TIMER_MODE_ONESHOT		(0x0<<17)
+#define			APIC_TIMER_MODE_PERIODIC	(0x1<<17)
+#define			APIC_TIMER_MODE_TSC_DEADLINE	(0x2<<17)
+#define			APIC_LVT_MASKED			(1<<16)
+#define			APIC_LVT_LEVEL_TRIGGER		(1<<15)
+#define			APIC_LVT_REMOTE_IRR		(1<<14)
+#define			APIC_INPUT_POLARITY		(1<<13)
+#define			APIC_SEND_PENDING		(1<<12)
+#define			APIC_MODE_MASK			0x700
+#define			GET_APIC_DELIVERY_MODE(x)	(((x)>>8)&0x7)
+#define			SET_APIC_DELIVERY_MODE(x,y)	(((x)&~0x700)|((y)<<8))
+#define				APIC_MODE_FIXED		0x0
+#define				APIC_MODE_NMI		0x4
+#define				APIC_MODE_EXTINT	0x7
+#define 	APIC_LVT1	0x360
+#define		APIC_LVTERR	0x370
+#define		APIC_TMICT	0x380
+#define		APIC_TMCCT	0x390
+#define		APIC_TDCR	0x3E0
+#define			APIC_TDR_DIV_TMBASE	(1<<2)
+#define			APIC_TDR_DIV_1		0xB
+#define			APIC_TDR_DIV_2		0x0
+#define			APIC_TDR_DIV_4		0x1
+#define			APIC_TDR_DIV_8		0x2
+#define			APIC_TDR_DIV_16		0x3
+#define			APIC_TDR_DIV_32		0x8
+#define			APIC_TDR_DIV_64		0x9
+#define			APIC_TDR_DIV_128	0xA
+
+/* Only available in x2APIC mode */
+#define		APIC_SELF_IPI	0x3F0
+
+#define APIC_BASE 0xfee00000
+
+/* It's only used in x2APIC mode of an x2APIC unit. */
+#define APIC_MSR_BASE 0x800
+
+#define MAX_IO_APICS 128
+
+/*
+ * the local APIC register structure, memory mapped. Not terribly well
+ * tested, but we might eventually use this one in the future - the
+ * problem why we cannot use it right now is the P5 APIC, it has an
+ * errata which cannot take 8-bit reads and writes, only 32-bit ones ...
+ */
+#define u32 unsigned int
+
+#define lapic ((volatile struct local_apic *)APIC_BASE)
+
+#ifndef __ASSEMBLY__
+struct __packed local_apic {
+
+/*000*/	struct { u32 __reserved[4]; } __reserved_01;
+
+/*010*/	struct { u32 __reserved[4]; } __reserved_02;
+
+/*020*/	struct { /* APIC ID Register */
+		u32   __reserved_1	: 24,
+			phys_apic_id	:  4,
+			__reserved_2	:  4;
+		u32 __reserved[3];
+	} id;
+
+/*030*/	const
+	struct { /* APIC Version Register */
+		u32   version		:  8,
+			__reserved_1	:  8,
+			max_lvt		:  8,
+			__reserved_2	:  8;
+		u32 __reserved[3];
+	} version;
+
+/*040*/	struct { u32 __reserved[4]; } __reserved_03;
+
+/*050*/	struct { u32 __reserved[4]; } __reserved_04;
+
+/*060*/	struct { u32 __reserved[4]; } __reserved_05;
+
+/*070*/	struct { u32 __reserved[4]; } __reserved_06;
+
+/*080*/	struct { /* Task Priority Register */
+		u32   priority	:  8,
+			__reserved_1	: 24;
+		u32 __reserved_2[3];
+	} tpr;
+
+/*090*/	const
+	struct { /* Arbitration Priority Register */
+		u32   priority	:  8,
+			__reserved_1	: 24;
+		u32 __reserved_2[3];
+	} apr;
+
+/*0A0*/	const
+	struct { /* Processor Priority Register */
+		u32   priority	:  8,
+			__reserved_1	: 24;
+		u32 __reserved_2[3];
+	} ppr;
+
+/*0B0*/	struct { /* End Of Interrupt Register */
+		u32   eoi;
+		u32 __reserved[3];
+	} eoi;
+
+/*0C0*/	struct { u32 __reserved[4]; } __reserved_07;
+
+/*0D0*/	struct { /* Logical Destination Register */
+		u32   __reserved_1	: 24,
+			logical_dest	:  8;
+		u32 __reserved_2[3];
+	} ldr;
+
+/*0E0*/	struct { /* Destination Format Register */
+		u32   __reserved_1	: 28,
+			model		:  4;
+		u32 __reserved_2[3];
+	} dfr;
+
+/*0F0*/	struct { /* Spurious Interrupt Vector Register */
+		u32	spurious_vector	:  8,
+			apic_enabled	:  1,
+			focus_cpu	:  1,
+			__reserved_2	: 22;
+		u32 __reserved_3[3];
+	} svr;
+
+/*100*/	struct { /* In Service Register */
+/*170*/		u32 bitfield;
+		u32 __reserved[3];
+	} isr [8];
+
+/*180*/	struct { /* Trigger Mode Register */
+/*1F0*/		u32 bitfield;
+		u32 __reserved[3];
+	} tmr [8];
+
+/*200*/	struct { /* Interrupt Request Register */
+/*270*/		u32 bitfield;
+		u32 __reserved[3];
+	} irr [8];
+
+/*280*/	union { /* Error Status Register */
+		struct {
+			u32   send_cs_error			:  1,
+				receive_cs_error		:  1,
+				send_accept_error		:  1,
+				receive_accept_error		:  1,
+				__reserved_1			:  1,
+				send_illegal_vector		:  1,
+				receive_illegal_vector		:  1,
+				illegal_register_address	:  1,
+				__reserved_2			: 24;
+			u32 __reserved_3[3];
+		} error_bits;
+		struct {
+			u32 errors;
+			u32 __reserved_3[3];
+		} all_errors;
+	} esr;
+
+/*290*/	struct { u32 __reserved[4]; } __reserved_08;
+
+/*2A0*/	struct { u32 __reserved[4]; } __reserved_09;
+
+/*2B0*/	struct { u32 __reserved[4]; } __reserved_10;
+
+/*2C0*/	struct { u32 __reserved[4]; } __reserved_11;
+
+/*2D0*/	struct { u32 __reserved[4]; } __reserved_12;
+
+/*2E0*/	struct { u32 __reserved[4]; } __reserved_13;
+
+/*2F0*/	struct { u32 __reserved[4]; } __reserved_14;
+
+/*300*/	struct { /* Interrupt Command Register 1 */
+		u32   vector			:  8,
+			delivery_mode		:  3,
+			destination_mode	:  1,
+			delivery_status		:  1,
+			__reserved_1		:  1,
+			level			:  1,
+			trigger			:  1,
+			__reserved_2		:  2,
+			shorthand		:  2,
+			__reserved_3		:  12;
+		u32 __reserved_4[3];
+	} icr1;
+
+/*310*/	struct { /* Interrupt Command Register 2 */
+		union {
+			u32   __reserved_1	: 24,
+				phys_dest	:  4,
+				__reserved_2	:  4;
+			u32   __reserved_3	: 24,
+				logical_dest	:  8;
+		} dest;
+		u32 __reserved_4[3];
+	} icr2;
+
+/*320*/	struct { /* LVT - Timer */
+		u32   vector		:  8,
+			__reserved_1	:  4,
+			delivery_status	:  1,
+			__reserved_2	:  3,
+			mask		:  1,
+			timer_mode	:  1,
+			__reserved_3	: 14;
+		u32 __reserved_4[3];
+	} lvt_timer;
+
+/*330*/	struct { /* LVT - Thermal Sensor */
+		u32  vector		:  8,
+			delivery_mode	:  3,
+			__reserved_1	:  1,
+			delivery_status	:  1,
+			__reserved_2	:  3,
+			mask		:  1,
+			__reserved_3	: 15;
+		u32 __reserved_4[3];
+	} lvt_thermal;
+
+/*340*/	struct { /* LVT - Performance Counter */
+		u32   vector		:  8,
+			delivery_mode	:  3,
+			__reserved_1	:  1,
+			delivery_status	:  1,
+			__reserved_2	:  3,
+			mask		:  1,
+			__reserved_3	: 15;
+		u32 __reserved_4[3];
+	} lvt_pc;
+
+/*350*/	struct { /* LVT - LINT0 */
+		u32   vector		:  8,
+			delivery_mode	:  3,
+			__reserved_1	:  1,
+			delivery_status	:  1,
+			polarity	:  1,
+			remote_irr	:  1,
+			trigger		:  1,
+			mask		:  1,
+			__reserved_2	: 15;
+		u32 __reserved_3[3];
+	} lvt_lint0;
+
+/*360*/	struct { /* LVT - LINT1 */
+		u32   vector		:  8,
+			delivery_mode	:  3,
+			__reserved_1	:  1,
+			delivery_status	:  1,
+			polarity	:  1,
+			remote_irr	:  1,
+			trigger		:  1,
+			mask		:  1,
+			__reserved_2	: 15;
+		u32 __reserved_3[3];
+	} lvt_lint1;
+
+/*370*/	struct { /* LVT - Error */
+		u32   vector		:  8,
+			__reserved_1	:  4,
+			delivery_status	:  1,
+			__reserved_2	:  3,
+			mask		:  1,
+			__reserved_3	: 15;
+		u32 __reserved_4[3];
+	} lvt_error;
+
+/*380*/	struct { /* Timer Initial Count Register */
+		u32   initial_count;
+		u32 __reserved_2[3];
+	} timer_icr;
+
+/*390*/	const
+	struct { /* Timer Current Count Register */
+		u32   curr_count;
+		u32 __reserved_2[3];
+	} timer_ccr;
+
+/*3A0*/	struct { u32 __reserved[4]; } __reserved_16;
+
+/*3B0*/	struct { u32 __reserved[4]; } __reserved_17;
+
+/*3C0*/	struct { u32 __reserved[4]; } __reserved_18;
+
+/*3D0*/	struct { u32 __reserved[4]; } __reserved_19;
+
+/*3E0*/	struct { /* Timer Divide Configuration Register */
+		u32   divisor		:  4,
+			__reserved_1	: 28;
+		u32 __reserved_2[3];
+	} timer_dcr;
+
+/*3F0*/	struct { u32 __reserved[4]; } __reserved_20;
+
+};
+#endif /* !__ASSEMBLY__ */
+
+#undef u32
+
+#endif
