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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; | |
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 |