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82470196 ZX |
1 | #ifndef __KVM_X86_LAPIC_H |
2 | #define __KVM_X86_LAPIC_H | |
3 | ||
4 | #include "iodev.h" | |
5 | ||
6 | #include <linux/kvm_host.h> | |
7 | ||
66450a21 JK |
8 | #define KVM_APIC_INIT 0 |
9 | #define KVM_APIC_SIPI 1 | |
10 | ||
e9d90d47 AK |
11 | struct kvm_timer { |
12 | struct hrtimer timer; | |
13 | s64 period; /* unit: ns */ | |
14 | u32 timer_mode_mask; | |
15 | u64 tscdeadline; | |
16 | atomic_t pending; /* accumulated triggered timers */ | |
e9d90d47 AK |
17 | }; |
18 | ||
82470196 ZX |
19 | struct kvm_lapic { |
20 | unsigned long base_address; | |
21 | struct kvm_io_device dev; | |
d3c7b77d MT |
22 | struct kvm_timer lapic_timer; |
23 | u32 divide_count; | |
82470196 | 24 | struct kvm_vcpu *vcpu; |
33e4c686 | 25 | bool irr_pending; |
8680b94b MT |
26 | /* Number of bits set in ISR. */ |
27 | s16 isr_count; | |
28 | /* The highest vector set in ISR; if -1 - invalid, must scan ISR. */ | |
29 | int highest_isr_cache; | |
5eadf916 MT |
30 | /** |
31 | * APIC register page. The layout matches the register layout seen by | |
32 | * the guest 1:1, because it is accessed by the vmx microcode. | |
33 | * Note: Only one register, the TPR, is used by the microcode. | |
34 | */ | |
82470196 | 35 | void *regs; |
b93463aa AK |
36 | gpa_t vapic_addr; |
37 | struct page *vapic_page; | |
66450a21 JK |
38 | unsigned long pending_events; |
39 | unsigned int sipi_vector; | |
82470196 ZX |
40 | }; |
41 | int kvm_create_lapic(struct kvm_vcpu *vcpu); | |
42 | void kvm_free_lapic(struct kvm_vcpu *vcpu); | |
43 | ||
44 | int kvm_apic_has_interrupt(struct kvm_vcpu *vcpu); | |
45 | int kvm_apic_accept_pic_intr(struct kvm_vcpu *vcpu); | |
46 | int kvm_get_apic_interrupt(struct kvm_vcpu *vcpu); | |
66450a21 | 47 | void kvm_apic_accept_events(struct kvm_vcpu *vcpu); |
82470196 ZX |
48 | void kvm_lapic_reset(struct kvm_vcpu *vcpu); |
49 | u64 kvm_lapic_get_cr8(struct kvm_vcpu *vcpu); | |
50 | void kvm_lapic_set_tpr(struct kvm_vcpu *vcpu, unsigned long cr8); | |
58fbbf26 | 51 | void kvm_lapic_set_eoi(struct kvm_vcpu *vcpu); |
82470196 | 52 | void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value); |
8b2cf73c | 53 | u64 kvm_lapic_get_base(struct kvm_vcpu *vcpu); |
fc61b800 | 54 | void kvm_apic_set_version(struct kvm_vcpu *vcpu); |
82470196 | 55 | |
cf9e65b7 | 56 | void kvm_apic_update_tmr(struct kvm_vcpu *vcpu, u32 *tmr); |
82470196 ZX |
57 | int kvm_apic_match_physical_addr(struct kvm_lapic *apic, u16 dest); |
58 | int kvm_apic_match_logical_addr(struct kvm_lapic *apic, u8 mda); | |
b4f2225c YZ |
59 | int kvm_apic_set_irq(struct kvm_vcpu *vcpu, struct kvm_lapic_irq *irq, |
60 | unsigned long *dest_map); | |
89342082 | 61 | int kvm_apic_local_deliver(struct kvm_lapic *apic, int lvt_type); |
82470196 | 62 | |
1e08ec4a | 63 | bool kvm_irq_delivery_to_apic_fast(struct kvm *kvm, struct kvm_lapic *src, |
b4f2225c | 64 | struct kvm_lapic_irq *irq, int *r, unsigned long *dest_map); |
1e08ec4a | 65 | |
82470196 ZX |
66 | u64 kvm_get_apic_base(struct kvm_vcpu *vcpu); |
67 | void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data); | |
64eb0620 GN |
68 | void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu, |
69 | struct kvm_lapic_state *s); | |
82470196 | 70 | int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu); |
82470196 | 71 | |
a3e06bbe LJ |
72 | u64 kvm_get_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu); |
73 | void kvm_set_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu, u64 data); | |
74 | ||
83d4c286 | 75 | void kvm_apic_write_nodecode(struct kvm_vcpu *vcpu, u32 offset); |
c7c9c56c | 76 | void kvm_apic_set_eoi_accelerated(struct kvm_vcpu *vcpu, int vector); |
83d4c286 | 77 | |
b93463aa AK |
78 | void kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr); |
79 | void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu); | |
80 | void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu); | |
81 | ||
0105d1a5 GN |
82 | int kvm_x2apic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data); |
83 | int kvm_x2apic_msr_read(struct kvm_vcpu *vcpu, u32 msr, u64 *data); | |
10388a07 GN |
84 | |
85 | int kvm_hv_vapic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data); | |
86 | int kvm_hv_vapic_msr_read(struct kvm_vcpu *vcpu, u32 msr, u64 *data); | |
87 | ||
88 | static inline bool kvm_hv_vapic_assist_page_enabled(struct kvm_vcpu *vcpu) | |
89 | { | |
90 | return vcpu->arch.hv_vapic & HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE; | |
91 | } | |
ae7a2a3f MT |
92 | |
93 | int kvm_lapic_enable_pv_eoi(struct kvm_vcpu *vcpu, u64 data); | |
c5cc421b | 94 | void kvm_lapic_init(void); |
c48f1496 GN |
95 | |
96 | static inline u32 kvm_apic_get_reg(struct kvm_lapic *apic, int reg_off) | |
97 | { | |
98 | return *((u32 *) (apic->regs + reg_off)); | |
99 | } | |
100 | ||
101 | extern struct static_key kvm_no_apic_vcpu; | |
102 | ||
103 | static inline bool kvm_vcpu_has_lapic(struct kvm_vcpu *vcpu) | |
104 | { | |
105 | if (static_key_false(&kvm_no_apic_vcpu)) | |
106 | return vcpu->arch.apic; | |
107 | return true; | |
108 | } | |
109 | ||
110 | extern struct static_key_deferred apic_hw_disabled; | |
111 | ||
112 | static inline int kvm_apic_hw_enabled(struct kvm_lapic *apic) | |
113 | { | |
114 | if (static_key_false(&apic_hw_disabled.key)) | |
115 | return apic->vcpu->arch.apic_base & MSR_IA32_APICBASE_ENABLE; | |
116 | return MSR_IA32_APICBASE_ENABLE; | |
117 | } | |
118 | ||
119 | extern struct static_key_deferred apic_sw_disabled; | |
120 | ||
121 | static inline int kvm_apic_sw_enabled(struct kvm_lapic *apic) | |
122 | { | |
123 | if (static_key_false(&apic_sw_disabled.key)) | |
124 | return kvm_apic_get_reg(apic, APIC_SPIV) & APIC_SPIV_APIC_ENABLED; | |
125 | return APIC_SPIV_APIC_ENABLED; | |
126 | } | |
127 | ||
128 | static inline bool kvm_apic_present(struct kvm_vcpu *vcpu) | |
129 | { | |
130 | return kvm_vcpu_has_lapic(vcpu) && kvm_apic_hw_enabled(vcpu->arch.apic); | |
131 | } | |
132 | ||
133 | static inline int kvm_lapic_enabled(struct kvm_vcpu *vcpu) | |
134 | { | |
135 | return kvm_apic_present(vcpu) && kvm_apic_sw_enabled(vcpu->arch.apic); | |
136 | } | |
137 | ||
8d14695f YZ |
138 | static inline int apic_x2apic_mode(struct kvm_lapic *apic) |
139 | { | |
140 | return apic->vcpu->arch.apic_base & X2APIC_ENABLE; | |
141 | } | |
142 | ||
c7c9c56c YZ |
143 | static inline bool kvm_apic_vid_enabled(struct kvm *kvm) |
144 | { | |
145 | return kvm_x86_ops->vm_has_apicv(kvm); | |
146 | } | |
147 | ||
148 | static inline u16 apic_cluster_id(struct kvm_apic_map *map, u32 ldr) | |
149 | { | |
150 | u16 cid; | |
151 | ldr >>= 32 - map->ldr_bits; | |
152 | cid = (ldr >> map->cid_shift) & map->cid_mask; | |
153 | ||
154 | BUG_ON(cid >= ARRAY_SIZE(map->logical_map)); | |
155 | ||
156 | return cid; | |
157 | } | |
158 | ||
159 | static inline u16 apic_logical_id(struct kvm_apic_map *map, u32 ldr) | |
160 | { | |
161 | ldr >>= (32 - map->ldr_bits); | |
162 | return ldr & map->lid_mask; | |
163 | } | |
164 | ||
66450a21 JK |
165 | static inline bool kvm_apic_has_events(struct kvm_vcpu *vcpu) |
166 | { | |
167 | return vcpu->arch.apic->pending_events; | |
168 | } | |
169 | ||
10606919 YZ |
170 | bool kvm_apic_pending_eoi(struct kvm_vcpu *vcpu, int vector); |
171 | ||
82470196 | 172 | #endif |