lapic.h | Explore in Territory

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __KVM_X86_LAPIC_H
#define __KVM_X86_LAPIC_H

#include <kvm/iodev.h>

#include <linux/kvm_host.h>

#include "hyperv.h"
#include "smm.h"

#define KVM_APIC_INIT …
#define KVM_APIC_SIPI …

#define APIC_SHORT_MASK …
#define APIC_DEST_NOSHORT …
#define APIC_DEST_MASK …

#define APIC_BUS_CYCLE_NS_DEFAULT …

#define APIC_BROADCAST …
#define X2APIC_BROADCAST …

enum lapic_mode { … };

enum lapic_lvt_entry { … };

#define APIC_LVTx(x) …

struct kvm_timer { … };

struct kvm_lapic { … };

struct dest_map;

int kvm_create_lapic(struct kvm_vcpu *vcpu);
void kvm_free_lapic(struct kvm_vcpu *vcpu);

int kvm_apic_has_interrupt(struct kvm_vcpu *vcpu);
void kvm_apic_ack_interrupt(struct kvm_vcpu *vcpu, int vector);
int kvm_apic_accept_pic_intr(struct kvm_vcpu *vcpu);
int kvm_apic_accept_events(struct kvm_vcpu *vcpu);
void kvm_lapic_reset(struct kvm_vcpu *vcpu, bool init_event);
u64 kvm_lapic_get_cr8(struct kvm_vcpu *vcpu);
void kvm_lapic_set_tpr(struct kvm_vcpu *vcpu, unsigned long cr8);
void kvm_lapic_set_eoi(struct kvm_vcpu *vcpu);
void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value);
void kvm_recalculate_apic_map(struct kvm *kvm);
void kvm_apic_set_version(struct kvm_vcpu *vcpu);
void kvm_apic_after_set_mcg_cap(struct kvm_vcpu *vcpu);
bool kvm_apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source,
			   int shorthand, unsigned int dest, int dest_mode);
int kvm_apic_compare_prio(struct kvm_vcpu *vcpu1, struct kvm_vcpu *vcpu2);
void kvm_apic_clear_irr(struct kvm_vcpu *vcpu, int vec);
bool __kvm_apic_update_irr(u32 *pir, void *regs, int *max_irr);
bool kvm_apic_update_irr(struct kvm_vcpu *vcpu, u32 *pir, int *max_irr);
void kvm_apic_update_ppr(struct kvm_vcpu *vcpu);
int kvm_apic_set_irq(struct kvm_vcpu *vcpu, struct kvm_lapic_irq *irq,
		     struct dest_map *dest_map);
int kvm_apic_local_deliver(struct kvm_lapic *apic, int lvt_type);
void kvm_apic_update_apicv(struct kvm_vcpu *vcpu);
int kvm_alloc_apic_access_page(struct kvm *kvm);
void kvm_inhibit_apic_access_page(struct kvm_vcpu *vcpu);

bool kvm_irq_delivery_to_apic_fast(struct kvm *kvm, struct kvm_lapic *src,
		struct kvm_lapic_irq *irq, int *r, struct dest_map *dest_map);
void kvm_apic_send_ipi(struct kvm_lapic *apic, u32 icr_low, u32 icr_high);

u64 kvm_get_apic_base(struct kvm_vcpu *vcpu);
int kvm_set_apic_base(struct kvm_vcpu *vcpu, struct msr_data *msr_info);
int kvm_apic_get_state(struct kvm_vcpu *vcpu, struct kvm_lapic_state *s);
int kvm_apic_set_state(struct kvm_vcpu *vcpu, struct kvm_lapic_state *s);
enum lapic_mode kvm_get_apic_mode(struct kvm_vcpu *vcpu);
int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu);

u64 kvm_get_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu);
void kvm_set_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu, u64 data);

void kvm_apic_write_nodecode(struct kvm_vcpu *vcpu, u32 offset);
void kvm_apic_set_eoi_accelerated(struct kvm_vcpu *vcpu, int vector);

int kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr);
void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu);
void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu);

int kvm_x2apic_icr_write(struct kvm_lapic *apic, u64 data);
int kvm_x2apic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data);
int kvm_x2apic_msr_read(struct kvm_vcpu *vcpu, u32 msr, u64 *data);

int kvm_hv_vapic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data);
int kvm_hv_vapic_msr_read(struct kvm_vcpu *vcpu, u32 msr, u64 *data);

int kvm_lapic_set_pv_eoi(struct kvm_vcpu *vcpu, u64 data, unsigned long len);
void kvm_lapic_exit(void);

u64 kvm_lapic_readable_reg_mask(struct kvm_lapic *apic);

#define VEC_POS(v) …
#define REG_POS(v) …

static inline void kvm_lapic_clear_vector(int vec, void *bitmap)
{ … }

static inline void kvm_lapic_set_vector(int vec, void *bitmap)
{ … }

static inline void kvm_lapic_set_irr(int vec, struct kvm_lapic *apic)
{ … }

static inline u32 __kvm_lapic_get_reg(char *regs, int reg_off)
{ … }

static inline u32 kvm_lapic_get_reg(struct kvm_lapic *apic, int reg_off)
{ … }

DECLARE_STATIC_KEY_FALSE(kvm_has_noapic_vcpu);

static inline bool lapic_in_kernel(struct kvm_vcpu *vcpu)
{ … }

extern struct static_key_false_deferred apic_hw_disabled;

static inline bool kvm_apic_hw_enabled(struct kvm_lapic *apic)
{ … }

extern struct static_key_false_deferred apic_sw_disabled;

static inline bool kvm_apic_sw_enabled(struct kvm_lapic *apic)
{ … }

static inline bool kvm_apic_present(struct kvm_vcpu *vcpu)
{ … }

static inline int kvm_lapic_enabled(struct kvm_vcpu *vcpu)
{ … }

static inline int apic_x2apic_mode(struct kvm_lapic *apic)
{ … }

static inline bool kvm_vcpu_apicv_active(struct kvm_vcpu *vcpu)
{ … }

static inline bool kvm_apic_has_pending_init_or_sipi(struct kvm_vcpu *vcpu)
{ … }

static inline bool kvm_apic_init_sipi_allowed(struct kvm_vcpu *vcpu)
{ … }

static inline bool kvm_lowest_prio_delivery(struct kvm_lapic_irq *irq)
{ … }

static inline int kvm_lapic_latched_init(struct kvm_vcpu *vcpu)
{ … }

bool kvm_apic_pending_eoi(struct kvm_vcpu *vcpu, int vector);

void kvm_wait_lapic_expire(struct kvm_vcpu *vcpu);

void kvm_bitmap_or_dest_vcpus(struct kvm *kvm, struct kvm_lapic_irq *irq,
			      unsigned long *vcpu_bitmap);

bool kvm_intr_is_single_vcpu_fast(struct kvm *kvm, struct kvm_lapic_irq *irq,
			struct kvm_vcpu **dest_vcpu);
int kvm_vector_to_index(u32 vector, u32 dest_vcpus,
			const unsigned long *bitmap, u32 bitmap_size);
void kvm_lapic_switch_to_sw_timer(struct kvm_vcpu *vcpu);
void kvm_lapic_switch_to_hv_timer(struct kvm_vcpu *vcpu);
void kvm_lapic_expired_hv_timer(struct kvm_vcpu *vcpu);
bool kvm_lapic_hv_timer_in_use(struct kvm_vcpu *vcpu);
void kvm_lapic_restart_hv_timer(struct kvm_vcpu *vcpu);
bool kvm_can_use_hv_timer(struct kvm_vcpu *vcpu);

static inline enum lapic_mode kvm_apic_mode(u64 apic_base)
{ … }

static inline u8 kvm_xapic_id(struct kvm_lapic *apic)
{ … }

#endif
linux/arch/x86/kvm/lapic.h
