[net-next-2.6.git] / virt / kvm / ioapic.h

#ifndef __KVM_IO_APIC_H
#define __KVM_IO_APIC_H

#include <linux/kvm_host.h>

#include "iodev.h"

struct kvm;
struct kvm_vcpu;

#define IOAPIC_NUM_PINS  KVM_IOAPIC_NUM_PINS
#define IOAPIC_VERSION_ID 0x11	/* IOAPIC version */
#define IOAPIC_EDGE_TRIG  0
#define IOAPIC_LEVEL_TRIG 1

#define IOAPIC_DEFAULT_BASE_ADDRESS  0xfec00000
#define IOAPIC_MEM_LENGTH            0x100

/* Direct registers. */
#define IOAPIC_REG_SELECT  0x00
#define IOAPIC_REG_WINDOW  0x10
#define IOAPIC_REG_EOI     0x40	/* IA64 IOSAPIC only */

/* Indirect registers. */
#define IOAPIC_REG_APIC_ID 0x00	/* x86 IOAPIC only */
#define IOAPIC_REG_VERSION 0x01
#define IOAPIC_REG_ARB_ID  0x02	/* x86 IOAPIC only */

/*ioapic delivery mode*/
#define	IOAPIC_FIXED			0x0
#define	IOAPIC_LOWEST_PRIORITY		0x1
#define	IOAPIC_PMI			0x2
#define	IOAPIC_NMI			0x4
#define	IOAPIC_INIT			0x5
#define	IOAPIC_EXTINT			0x7

struct kvm_ioapic {
	u64 base_address;
	u32 ioregsel;
	u32 id;
	u32 irr;
	u32 pad;
	union kvm_ioapic_redirect_entry redirtbl[IOAPIC_NUM_PINS];
	unsigned long irq_states[IOAPIC_NUM_PINS];
	struct kvm_io_device dev;
	struct kvm *kvm;
	void (*ack_notifier)(void *opaque, int irq);
	spinlock_t lock;
	DECLARE_BITMAP(handled_vectors, 256);
};

#ifdef DEBUG
#define ASSERT(x)  							\
do {									\
	if (!(x)) {							\
		printk(KERN_EMERG "assertion failed %s: %d: %s\n",	\
		       __FILE__, __LINE__, #x);				\
		BUG();							\
	}								\
} while (0)
#else
#define ASSERT(x) do { } while (0)
#endif

static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
{
	return kvm->arch.vioapic;
}

int kvm_apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source,
		int short_hand, int dest, int dest_mode);
int kvm_apic_compare_prio(struct kvm_vcpu *vcpu1, struct kvm_vcpu *vcpu2);
void kvm_ioapic_update_eoi(struct kvm *kvm, int vector, int trigger_mode);
int kvm_ioapic_init(struct kvm *kvm);
void kvm_ioapic_destroy(struct kvm *kvm);
int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level);
void kvm_ioapic_reset(struct kvm_ioapic *ioapic);
int kvm_irq_delivery_to_apic(struct kvm *kvm, struct kvm_lapic *src,
		struct kvm_lapic_irq *irq);
int kvm_get_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state);
int kvm_set_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state);

#endif
Commit	Line	Data
82470196 ZX	1	#ifndef __KVM_IO_APIC_H
	2	#define __KVM_IO_APIC_H
	3
	4	#include <linux/kvm_host.h>
	5
	6	#include "iodev.h"
	7
	8	struct kvm;
	9	struct kvm_vcpu;
	10
	11	#define IOAPIC_NUM_PINS KVM_IOAPIC_NUM_PINS
	12	#define IOAPIC_VERSION_ID 0x11 /* IOAPIC version */
	13	#define IOAPIC_EDGE_TRIG 0
	14	#define IOAPIC_LEVEL_TRIG 1
	15
	16	#define IOAPIC_DEFAULT_BASE_ADDRESS 0xfec00000
	17	#define IOAPIC_MEM_LENGTH 0x100
	18
	19	/* Direct registers. */
	20	#define IOAPIC_REG_SELECT 0x00
	21	#define IOAPIC_REG_WINDOW 0x10
	22	#define IOAPIC_REG_EOI 0x40 /* IA64 IOSAPIC only */
	23
	24	/* Indirect registers. */
	25	#define IOAPIC_REG_APIC_ID 0x00 /* x86 IOAPIC only */
	26	#define IOAPIC_REG_VERSION 0x01
	27	#define IOAPIC_REG_ARB_ID 0x02 /* x86 IOAPIC only */
	28
	29	/ioapic delivery mode/
	30	#define IOAPIC_FIXED 0x0
	31	#define IOAPIC_LOWEST_PRIORITY 0x1
	32	#define IOAPIC_PMI 0x2
	33	#define IOAPIC_NMI 0x4
	34	#define IOAPIC_INIT 0x5
	35	#define IOAPIC_EXTINT 0x7
	36
	37	struct kvm_ioapic {
	38	u64 base_address;
	39	u32 ioregsel;
	40	u32 id;
	41	u32 irr;
	42	u32 pad;
cf9e4e15	43	union kvm_ioapic_redirect_entry redirtbl[IOAPIC_NUM_PINS];
1a6e4a8c	44	unsigned long irq_states[IOAPIC_NUM_PINS];
82470196 ZX	45	struct kvm_io_device dev;
82470196 ZX	46	struct kvm *kvm;
f5244726	47	void (ack_notifier)(void opaque, int irq);
46a47b1e	48	spinlock_t lock;
46a929bc	49	DECLARE_BITMAP(handled_vectors, 256);
82470196 ZX	50	};
	51
	52	#ifdef DEBUG
	53	#define ASSERT(x) \
	54	do { \
	55	if (!(x)) { \
	56	printk(KERN_EMERG "assertion failed %s: %d: %s\n", \
	57	__FILE__, __LINE__, #x); \
	58	BUG(); \
	59	} \
	60	} while (0)
	61	#else
	62	#define ASSERT(x) do { } while (0)
	63	#endif
	64
	65	static inline struct kvm_ioapic ioapic_irqchip(struct kvm kvm)
	66	{
	67	return kvm->arch.vioapic;
	68	}
	69
343f94fe GN	70	int kvm_apic_match_dest(struct kvm_vcpu vcpu, struct kvm_lapic source,
343f94fe GN	71	int short_hand, int dest, int dest_mode);
e1035715	72	int kvm_apic_compare_prio(struct kvm_vcpu vcpu1, struct kvm_vcpu vcpu2);
f5244726	73	void kvm_ioapic_update_eoi(struct kvm *kvm, int vector, int trigger_mode);
82470196	74	int kvm_ioapic_init(struct kvm *kvm);
72bb2fcd	75	void kvm_ioapic_destroy(struct kvm *kvm);
4925663a	76	int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level);
82470196	77	void kvm_ioapic_reset(struct kvm_ioapic *ioapic);
58c2dde1 GN	78	int kvm_irq_delivery_to_apic(struct kvm kvm, struct kvm_lapic src,
58c2dde1 GN	79	struct kvm_lapic_irq *irq);
eba0226b GN	80	int kvm_get_ioapic(struct kvm kvm, struct kvm_ioapic_state state);
	81	int kvm_set_ioapic(struct kvm kvm, struct kvm_ioapic_state state);
	82
82470196	83	#endif