123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110 |
- #ifndef __ASM_ARM_KVM_PMU_H
- #define __ASM_ARM_KVM_PMU_H
- #include <linux/perf_event.h>
- #include <asm/perf_event.h>
- #define ARMV8_PMU_CYCLE_IDX (ARMV8_PMU_MAX_COUNTERS - 1)
- #ifdef CONFIG_KVM_ARM_PMU
- struct kvm_pmc {
- u8 idx;
- struct perf_event *perf_event;
- u64 bitmask;
- };
- struct kvm_pmu {
- int irq_num;
- struct kvm_pmc pmc[ARMV8_PMU_MAX_COUNTERS];
- bool ready;
- bool irq_level;
- };
- #define kvm_arm_pmu_v3_ready(v) ((v)->arch.pmu.ready)
- #define kvm_arm_pmu_irq_initialized(v) ((v)->arch.pmu.irq_num >= VGIC_NR_SGIS)
- u64 kvm_pmu_get_counter_value(struct kvm_vcpu *vcpu, u64 select_idx);
- void kvm_pmu_set_counter_value(struct kvm_vcpu *vcpu, u64 select_idx, u64 val);
- u64 kvm_pmu_valid_counter_mask(struct kvm_vcpu *vcpu);
- void kvm_pmu_vcpu_reset(struct kvm_vcpu *vcpu);
- void kvm_pmu_vcpu_destroy(struct kvm_vcpu *vcpu);
- void kvm_pmu_disable_counter(struct kvm_vcpu *vcpu, u64 val);
- void kvm_pmu_enable_counter(struct kvm_vcpu *vcpu, u64 val);
- void kvm_pmu_overflow_set(struct kvm_vcpu *vcpu, u64 val);
- void kvm_pmu_flush_hwstate(struct kvm_vcpu *vcpu);
- void kvm_pmu_sync_hwstate(struct kvm_vcpu *vcpu);
- void kvm_pmu_software_increment(struct kvm_vcpu *vcpu, u64 val);
- void kvm_pmu_handle_pmcr(struct kvm_vcpu *vcpu, u64 val);
- void kvm_pmu_set_counter_event_type(struct kvm_vcpu *vcpu, u64 data,
- u64 select_idx);
- bool kvm_arm_support_pmu_v3(void);
- int kvm_arm_pmu_v3_set_attr(struct kvm_vcpu *vcpu,
- struct kvm_device_attr *attr);
- int kvm_arm_pmu_v3_get_attr(struct kvm_vcpu *vcpu,
- struct kvm_device_attr *attr);
- int kvm_arm_pmu_v3_has_attr(struct kvm_vcpu *vcpu,
- struct kvm_device_attr *attr);
- #else
- struct kvm_pmu {
- };
- #define kvm_arm_pmu_v3_ready(v) (false)
- #define kvm_arm_pmu_irq_initialized(v) (false)
- static inline u64 kvm_pmu_get_counter_value(struct kvm_vcpu *vcpu,
- u64 select_idx)
- {
- return 0;
- }
- static inline void kvm_pmu_set_counter_value(struct kvm_vcpu *vcpu,
- u64 select_idx, u64 val) {}
- static inline u64 kvm_pmu_valid_counter_mask(struct kvm_vcpu *vcpu)
- {
- return 0;
- }
- static inline void kvm_pmu_vcpu_reset(struct kvm_vcpu *vcpu) {}
- static inline void kvm_pmu_vcpu_destroy(struct kvm_vcpu *vcpu) {}
- static inline void kvm_pmu_disable_counter(struct kvm_vcpu *vcpu, u64 val) {}
- static inline void kvm_pmu_enable_counter(struct kvm_vcpu *vcpu, u64 val) {}
- static inline void kvm_pmu_overflow_set(struct kvm_vcpu *vcpu, u64 val) {}
- static inline void kvm_pmu_flush_hwstate(struct kvm_vcpu *vcpu) {}
- static inline void kvm_pmu_sync_hwstate(struct kvm_vcpu *vcpu) {}
- static inline void kvm_pmu_software_increment(struct kvm_vcpu *vcpu, u64 val) {}
- static inline void kvm_pmu_handle_pmcr(struct kvm_vcpu *vcpu, u64 val) {}
- static inline void kvm_pmu_set_counter_event_type(struct kvm_vcpu *vcpu,
- u64 data, u64 select_idx) {}
- static inline bool kvm_arm_support_pmu_v3(void) { return false; }
- static inline int kvm_arm_pmu_v3_set_attr(struct kvm_vcpu *vcpu,
- struct kvm_device_attr *attr)
- {
- return -ENXIO;
- }
- static inline int kvm_arm_pmu_v3_get_attr(struct kvm_vcpu *vcpu,
- struct kvm_device_attr *attr)
- {
- return -ENXIO;
- }
- static inline int kvm_arm_pmu_v3_has_attr(struct kvm_vcpu *vcpu,
- struct kvm_device_attr *attr)
- {
- return -ENXIO;
- }
- #endif
- #endif
|