diff options
Diffstat (limited to 'arch/x86/kvm/lapic.h')
| -rw-r--r-- | arch/x86/kvm/lapic.h | 61 |
1 files changed, 57 insertions, 4 deletions
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h index 4af5405ae1e..e5ebf9f3571 100644 --- a/arch/x86/kvm/lapic.h +++ b/arch/x86/kvm/lapic.h @@ -2,10 +2,17 @@ #define __KVM_X86_LAPIC_H #include "iodev.h" -#include "kvm_timer.h" #include <linux/kvm_host.h> +struct kvm_timer { + struct hrtimer timer; + s64 period; /* unit: ns */ + u32 timer_mode_mask; + u64 tscdeadline; + atomic_t pending; /* accumulated triggered timers */ +}; + struct kvm_lapic { unsigned long base_address; struct kvm_io_device dev; @@ -45,11 +52,13 @@ int kvm_apic_match_logical_addr(struct kvm_lapic *apic, u8 mda); int kvm_apic_set_irq(struct kvm_vcpu *vcpu, struct kvm_lapic_irq *irq); int kvm_apic_local_deliver(struct kvm_lapic *apic, int lvt_type); +bool kvm_irq_delivery_to_apic_fast(struct kvm *kvm, struct kvm_lapic *src, + struct kvm_lapic_irq *irq, int *r); + u64 kvm_get_apic_base(struct kvm_vcpu *vcpu); void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data); -void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu); -int kvm_lapic_enabled(struct kvm_vcpu *vcpu); -bool kvm_apic_present(struct kvm_vcpu *vcpu); +void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu, + struct kvm_lapic_state *s); int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu); u64 kvm_get_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu); @@ -71,4 +80,48 @@ static inline bool kvm_hv_vapic_assist_page_enabled(struct kvm_vcpu *vcpu) } int kvm_lapic_enable_pv_eoi(struct kvm_vcpu *vcpu, u64 data); +void kvm_lapic_init(void); + +static inline u32 kvm_apic_get_reg(struct kvm_lapic *apic, int reg_off) +{ + return *((u32 *) (apic->regs + reg_off)); +} + +extern struct static_key kvm_no_apic_vcpu; + +static inline bool kvm_vcpu_has_lapic(struct kvm_vcpu *vcpu) +{ + if (static_key_false(&kvm_no_apic_vcpu)) + return vcpu->arch.apic; + return true; +} + +extern struct static_key_deferred apic_hw_disabled; + +static inline int kvm_apic_hw_enabled(struct kvm_lapic *apic) +{ + if (static_key_false(&apic_hw_disabled.key)) + return apic->vcpu->arch.apic_base & MSR_IA32_APICBASE_ENABLE; + return MSR_IA32_APICBASE_ENABLE; +} + +extern struct static_key_deferred apic_sw_disabled; + +static inline int kvm_apic_sw_enabled(struct kvm_lapic *apic) +{ + if (static_key_false(&apic_sw_disabled.key)) + return kvm_apic_get_reg(apic, APIC_SPIV) & APIC_SPIV_APIC_ENABLED; + return APIC_SPIV_APIC_ENABLED; +} + +static inline bool kvm_apic_present(struct kvm_vcpu *vcpu) +{ + return kvm_vcpu_has_lapic(vcpu) && kvm_apic_hw_enabled(vcpu->arch.apic); +} + +static inline int kvm_lapic_enabled(struct kvm_vcpu *vcpu) +{ + return kvm_apic_present(vcpu) && kvm_apic_sw_enabled(vcpu->arch.apic); +} + #endif |