1 #ifndef __KVM_X86_LAPIC_H
2 #define __KVM_X86_LAPIC_H
6 #include <linux/kvm_host.h>
10 s64 period; /* unit: ns */
13 atomic_t pending; /* accumulated triggered timers */
17 unsigned long base_address;
18 struct kvm_io_device dev;
19 struct kvm_timer lapic_timer;
21 struct kvm_vcpu *vcpu;
23 /* Number of bits set in ISR. */
25 /* The highest vector set in ISR; if -1 - invalid, must scan ISR. */
26 int highest_isr_cache;
28 * APIC register page. The layout matches the register layout seen by
29 * the guest 1:1, because it is accessed by the vmx microcode.
30 * Note: Only one register, the TPR, is used by the microcode.
34 struct page *vapic_page;
36 int kvm_create_lapic(struct kvm_vcpu *vcpu);
37 void kvm_free_lapic(struct kvm_vcpu *vcpu);
39 int kvm_apic_has_interrupt(struct kvm_vcpu *vcpu);
40 int kvm_apic_accept_pic_intr(struct kvm_vcpu *vcpu);
41 int kvm_get_apic_interrupt(struct kvm_vcpu *vcpu);
42 void kvm_lapic_reset(struct kvm_vcpu *vcpu);
43 u64 kvm_lapic_get_cr8(struct kvm_vcpu *vcpu);
44 void kvm_lapic_set_tpr(struct kvm_vcpu *vcpu, unsigned long cr8);
45 void kvm_lapic_set_eoi(struct kvm_vcpu *vcpu);
46 void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value);
47 u64 kvm_lapic_get_base(struct kvm_vcpu *vcpu);
48 void kvm_apic_set_version(struct kvm_vcpu *vcpu);
50 int kvm_apic_match_physical_addr(struct kvm_lapic *apic, u16 dest);
51 int kvm_apic_match_logical_addr(struct kvm_lapic *apic, u8 mda);
52 int kvm_apic_set_irq(struct kvm_vcpu *vcpu, struct kvm_lapic_irq *irq);
53 int kvm_apic_local_deliver(struct kvm_lapic *apic, int lvt_type);
55 u64 kvm_get_apic_base(struct kvm_vcpu *vcpu);
56 void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data);
57 void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu);
58 int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu);
60 u64 kvm_get_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu);
61 void kvm_set_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu, u64 data);
63 void kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr);
64 void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu);
65 void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu);
67 int kvm_x2apic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data);
68 int kvm_x2apic_msr_read(struct kvm_vcpu *vcpu, u32 msr, u64 *data);
70 int kvm_hv_vapic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data);
71 int kvm_hv_vapic_msr_read(struct kvm_vcpu *vcpu, u32 msr, u64 *data);
73 static inline bool kvm_hv_vapic_assist_page_enabled(struct kvm_vcpu *vcpu)
75 return vcpu->arch.hv_vapic & HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE;
78 int kvm_lapic_enable_pv_eoi(struct kvm_vcpu *vcpu, u64 data);
79 void kvm_lapic_init(void);
81 static inline u32 kvm_apic_get_reg(struct kvm_lapic *apic, int reg_off)
83 return *((u32 *) (apic->regs + reg_off));
86 extern struct static_key kvm_no_apic_vcpu;
88 static inline bool kvm_vcpu_has_lapic(struct kvm_vcpu *vcpu)
90 if (static_key_false(&kvm_no_apic_vcpu))
91 return vcpu->arch.apic;
95 extern struct static_key_deferred apic_hw_disabled;
97 static inline int kvm_apic_hw_enabled(struct kvm_lapic *apic)
99 if (static_key_false(&apic_hw_disabled.key))
100 return apic->vcpu->arch.apic_base & MSR_IA32_APICBASE_ENABLE;
101 return MSR_IA32_APICBASE_ENABLE;
104 extern struct static_key_deferred apic_sw_disabled;
106 static inline int kvm_apic_sw_enabled(struct kvm_lapic *apic)
108 if (static_key_false(&apic_sw_disabled.key))
109 return kvm_apic_get_reg(apic, APIC_SPIV) & APIC_SPIV_APIC_ENABLED;
110 return APIC_SPIV_APIC_ENABLED;
113 static inline bool kvm_apic_present(struct kvm_vcpu *vcpu)
115 return kvm_vcpu_has_lapic(vcpu) && kvm_apic_hw_enabled(vcpu->arch.apic);
118 static inline int kvm_lapic_enabled(struct kvm_vcpu *vcpu)
120 return kvm_apic_present(vcpu) && kvm_apic_sw_enabled(vcpu->arch.apic);