summaryrefslogtreecommitdiff
path: root/kvm_ioapic.h
blob: 5b1759889b16e265e8b32ffd2056b50f21cc0d40 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
#ifndef __KVM_IO_APIC_H
#define __KVM_IO_APIC_H

#include "kvm_host.h"
#include "kvm_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

typedef struct kvm_ioapic {
	uint64_t base_address;
	uint32_t ioregsel;
	uint32_t id;
	uint32_t irr;
	uint32_t 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);
	kmutex_t lock;
#ifdef XXX
	DECLARE_BITMAP(handled_vectors, 256);
#else
	unsigned long handled_vectors[BT_BITOUL(256)];
#endif /*XXX*/
} kvm_ioapic_t;


struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm);
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