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
 8struct kvm;
 9struct 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
37struct kvm_ioapic {
38	u64 base_address;
39	u32 ioregsel;
40	u32 id;
41	u32 irr;
42	u32 pad;
43	union kvm_ioapic_redirect_entry redirtbl[IOAPIC_NUM_PINS];
44	unsigned long irq_states[IOAPIC_NUM_PINS];
45	struct kvm_io_device dev;
46	struct kvm *kvm;
47	void (*ack_notifier)(void *opaque, int irq);
48	spinlock_t lock;
49	DECLARE_BITMAP(handled_vectors, 256);
50};
51
52#ifdef DEBUG
53#define ASSERT(x)  							\
54do {									\
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
65static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
66{
67	return kvm->arch.vioapic;
68}
69
70int kvm_apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source,
71		int short_hand, int dest, int dest_mode);
72int kvm_apic_compare_prio(struct kvm_vcpu *vcpu1, struct kvm_vcpu *vcpu2);
73void kvm_ioapic_update_eoi(struct kvm *kvm, int vector, int trigger_mode);
74int kvm_ioapic_init(struct kvm *kvm);
75void kvm_ioapic_destroy(struct kvm *kvm);
76int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level);
77void kvm_ioapic_reset(struct kvm_ioapic *ioapic);
78int kvm_irq_delivery_to_apic(struct kvm *kvm, struct kvm_lapic *src,
79		struct kvm_lapic_irq *irq);
80int kvm_get_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state);
81int kvm_set_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state);
82
83#endif