1 #ifndef __KVM_X86_LAPIC_H
2 #define __KVM_X86_LAPIC_H
6 #include <linux/kvm_host.h>
8 #define KVM_APIC_INIT 0
9 #define KVM_APIC_SIPI 1
13 s64 period; /* unit: ns */
16 atomic_t pending; /* accumulated triggered timers */
20 unsigned long base_address;
21 struct kvm_io_device dev;
22 struct kvm_timer lapic_timer;
24 struct kvm_vcpu *vcpu;
26 /* Number of bits set in ISR. */
28 /* The highest vector set in ISR; if -1 - invalid, must scan ISR. */
29 int highest_isr_cache;
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.
37 struct page *vapic_page;
38 unsigned long pending_events;
39 unsigned int sipi_vector;
41 int kvm_create_lapic(struct kvm_vcpu *vcpu);
42 void kvm_free_lapic(struct kvm_vcpu *vcpu);
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);
47 void kvm_apic_accept_events(struct kvm_vcpu *vcpu);
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);
51 void kvm_lapic_set_eoi(struct kvm_vcpu *vcpu);
52 void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value);
53 u64 kvm_lapic_get_base(struct kvm_vcpu *vcpu);
54 void kvm_apic_set_version(struct kvm_vcpu *vcpu);
56 int kvm_apic_match_physical_addr(struct kvm_lapic *apic, u16 dest);
57 int kvm_apic_match_logical_addr(struct kvm_lapic *apic, u8 mda);
58 int kvm_apic_set_irq(struct kvm_vcpu *vcpu, struct kvm_lapic_irq *irq,
59 unsigned long *dest_map);
60 int kvm_apic_local_deliver(struct kvm_lapic *apic, int lvt_type);
62 bool kvm_irq_delivery_to_apic_fast(struct kvm *kvm, struct kvm_lapic *src,
63 struct kvm_lapic_irq *irq, int *r, unsigned long *dest_map);
65 u64 kvm_get_apic_base(struct kvm_vcpu *vcpu);
66 void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data);
67 void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu,
68 struct kvm_lapic_state *s);
69 int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu);
71 u64 kvm_get_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu);
72 void kvm_set_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu, u64 data);
74 void kvm_apic_write_nodecode(struct kvm_vcpu *vcpu, u32 offset);
75 void kvm_apic_set_eoi_accelerated(struct kvm_vcpu *vcpu, int vector);
77 void kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr);
78 void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu);
79 void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu);
81 int kvm_x2apic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data);
82 int kvm_x2apic_msr_read(struct kvm_vcpu *vcpu, u32 msr, u64 *data);
84 int kvm_hv_vapic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data);
85 int kvm_hv_vapic_msr_read(struct kvm_vcpu *vcpu, u32 msr, u64 *data);
87 static inline bool kvm_hv_vapic_assist_page_enabled(struct kvm_vcpu *vcpu)
89 return vcpu->arch.hv_vapic & HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE;
92 int kvm_lapic_enable_pv_eoi(struct kvm_vcpu *vcpu, u64 data);
93 void kvm_lapic_init(void);
95 static inline u32 kvm_apic_get_reg(struct kvm_lapic *apic, int reg_off)
97 return *((u32 *) (apic->regs + reg_off));
100 extern struct static_key kvm_no_apic_vcpu;
102 static inline bool kvm_vcpu_has_lapic(struct kvm_vcpu *vcpu)
104 if (static_key_false(&kvm_no_apic_vcpu))
105 return vcpu->arch.apic;
109 extern struct static_key_deferred apic_hw_disabled;
111 static inline int kvm_apic_hw_enabled(struct kvm_lapic *apic)
113 if (static_key_false(&apic_hw_disabled.key))
114 return apic->vcpu->arch.apic_base & MSR_IA32_APICBASE_ENABLE;
115 return MSR_IA32_APICBASE_ENABLE;
118 extern struct static_key_deferred apic_sw_disabled;
120 static inline int kvm_apic_sw_enabled(struct kvm_lapic *apic)
122 if (static_key_false(&apic_sw_disabled.key))
123 return kvm_apic_get_reg(apic, APIC_SPIV) & APIC_SPIV_APIC_ENABLED;
124 return APIC_SPIV_APIC_ENABLED;
127 static inline bool kvm_apic_present(struct kvm_vcpu *vcpu)
129 return kvm_vcpu_has_lapic(vcpu) && kvm_apic_hw_enabled(vcpu->arch.apic);
132 static inline int kvm_lapic_enabled(struct kvm_vcpu *vcpu)
134 return kvm_apic_present(vcpu) && kvm_apic_sw_enabled(vcpu->arch.apic);
137 static inline int apic_x2apic_mode(struct kvm_lapic *apic)
139 return apic->vcpu->arch.apic_base & X2APIC_ENABLE;
142 static inline bool kvm_apic_vid_enabled(struct kvm *kvm)
144 return kvm_x86_ops->vm_has_apicv(kvm);
147 static inline u16 apic_cluster_id(struct kvm_apic_map *map, u32 ldr)
150 ldr >>= 32 - map->ldr_bits;
151 cid = (ldr >> map->cid_shift) & map->cid_mask;
153 BUG_ON(cid >= ARRAY_SIZE(map->logical_map));
158 static inline u16 apic_logical_id(struct kvm_apic_map *map, u32 ldr)
160 ldr >>= (32 - map->ldr_bits);
161 return ldr & map->lid_mask;
164 static inline bool kvm_apic_has_events(struct kvm_vcpu *vcpu)
166 return vcpu->arch.apic->pending_events;
169 bool kvm_apic_pending_eoi(struct kvm_vcpu *vcpu, int vector);