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Zhang Xiantao82470192007-12-17 13:59:56 +08001#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 ioapic_redir_entry {
44 u64 bits;
45 struct {
46 u8 vector;
47 u8 delivery_mode:3;
48 u8 dest_mode:1;
49 u8 delivery_status:1;
50 u8 polarity:1;
51 u8 remote_irr:1;
52 u8 trig_mode:1;
53 u8 mask:1;
54 u8 reserve:7;
55 u8 reserved[4];
56 u8 dest_id;
57 } fields;
58 } redirtbl[IOAPIC_NUM_PINS];
59 struct kvm_io_device dev;
60 struct kvm *kvm;
Marcelo Tosattif5244722008-07-26 17:01:00 -030061 void (*ack_notifier)(void *opaque, int irq);
Zhang Xiantao82470192007-12-17 13:59:56 +080062};
63
64#ifdef DEBUG
65#define ASSERT(x) \
66do { \
67 if (!(x)) { \
68 printk(KERN_EMERG "assertion failed %s: %d: %s\n", \
69 __FILE__, __LINE__, #x); \
70 BUG(); \
71 } \
72} while (0)
73#else
74#define ASSERT(x) do { } while (0)
75#endif
76
77static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
78{
79 return kvm->arch.vioapic;
80}
81
Zhang Xiantao82470192007-12-17 13:59:56 +080082struct kvm_vcpu *kvm_get_lowest_prio_vcpu(struct kvm *kvm, u8 vector,
83 unsigned long bitmap);
Marcelo Tosattif5244722008-07-26 17:01:00 -030084void kvm_ioapic_update_eoi(struct kvm *kvm, int vector, int trigger_mode);
Zhang Xiantao82470192007-12-17 13:59:56 +080085int kvm_ioapic_init(struct kvm *kvm);
86void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level);
87void kvm_ioapic_reset(struct kvm_ioapic *ioapic);
Sheng Yang68b76f52008-11-24 14:32:54 +080088u32 kvm_ioapic_get_delivery_bitmask(struct kvm_ioapic *ioapic, u8 dest,
89 u8 dest_mode);
Zhang Xiantao82470192007-12-17 13:59:56 +080090
91#endif