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;
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;
61 };
62
63 #ifdef DEBUG
64 #define ASSERT(x) \
65 do { \
66 if (!(x)) { \
67 printk(KERN_EMERG "assertion failed %s: %d: %s\n", \
68 __FILE__, __LINE__, #x); \
69 BUG(); \
70 } \
71 } while (0)
72 #else
73 #define ASSERT(x) do { } while (0)
74 #endif
75
76 static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
77 {
78 return kvm->arch.vioapic;
79 }
80
81 #ifdef CONFIG_IA64
82 static inline int irqchip_in_kernel(struct kvm *kvm)
83 {
84 return 1;
85 }
86 #endif
87
88 struct kvm_vcpu *kvm_get_lowest_prio_vcpu(struct kvm *kvm, u8 vector,
89 unsigned long bitmap);
90 void kvm_ioapic_update_eoi(struct kvm *kvm, int vector);
91 int kvm_ioapic_init(struct kvm *kvm);
92 void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level);
93 void kvm_ioapic_reset(struct kvm_ioapic *ioapic);
94
95 #endif
96
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