9 #define pmc_to_pmu(pmc)   (&(pmc)->vcpu->arch.pmu)  argument
28 	bool (*hw_event_available)(struct kvm_pmc *pmc);
29 	bool (*pmc_is_enabled)(struct kvm_pmc *pmc);
47 static inline u64 pmc_bitmask(struct kvm_pmc *pmc)  in pmc_bitmask()  argument
49 	struct kvm_pmu *pmu = pmc_to_pmu(pmc);  in pmc_bitmask()
51 	return pmu->counter_bitmask[pmc->type];  in pmc_bitmask()
54 static inline u64 pmc_read_counter(struct kvm_pmc *pmc)  in pmc_read_counter()  argument
58 	counter = pmc->counter;  in pmc_read_counter()
59 	if (pmc->perf_event && !pmc->is_paused)  in pmc_read_counter()
60 		counter += perf_event_read_value(pmc->perf_event,  in pmc_read_counter()
63 	return counter & pmc_bitmask(pmc);  in pmc_read_counter()
66 static inline void pmc_release_perf_event(struct kvm_pmc *pmc)  in pmc_release_perf_event()  argument
68 	if (pmc->perf_event) {  in pmc_release_perf_event()
69 		perf_event_release_kernel(pmc->perf_event);  in pmc_release_perf_event()
70 		pmc->perf_event = NULL;  in pmc_release_perf_event()
71 		pmc->current_config = 0;  in pmc_release_perf_event()
72 		pmc_to_pmu(pmc)->event_count--;  in pmc_release_perf_event()
76 static inline void pmc_stop_counter(struct kvm_pmc *pmc)  in pmc_stop_counter()  argument
78 	if (pmc->perf_event) {  in pmc_stop_counter()
79 		pmc->counter = pmc_read_counter(pmc);  in pmc_stop_counter()
80 		pmc_release_perf_event(pmc);  in pmc_stop_counter()
84 static inline bool pmc_is_gp(struct kvm_pmc *pmc)  in pmc_is_gp()  argument
86 	return pmc->type == KVM_PMC_GP;  in pmc_is_gp()
89 static inline bool pmc_is_fixed(struct kvm_pmc *pmc)  in pmc_is_fixed()  argument
91 	return pmc->type == KVM_PMC_FIXED;  in pmc_is_fixed()
100 /* returns general purpose PMC with the specified MSR. Note that it can be
117 /* returns fixed PMC with the specified MSR */
132 static inline u64 get_sample_period(struct kvm_pmc *pmc, u64 counter_value)  in get_sample_period()  argument
134 	u64 sample_period = (-counter_value) & pmc_bitmask(pmc);  in get_sample_period()
137 		sample_period = pmc_bitmask(pmc) + 1;  in get_sample_period()
141 static inline void pmc_update_sample_period(struct kvm_pmc *pmc)  in pmc_update_sample_period()  argument
143 	if (!pmc->perf_event || pmc->is_paused)  in pmc_update_sample_period()
146 	perf_event_period(pmc->perf_event,  in pmc_update_sample_period()
147 			  get_sample_period(pmc, pmc->counter));  in pmc_update_sample_period()
150 static inline bool pmc_speculative_in_use(struct kvm_pmc *pmc)  in pmc_speculative_in_use()  argument
152 	struct kvm_pmu *pmu = pmc_to_pmu(pmc);  in pmc_speculative_in_use()
154 	if (pmc_is_fixed(pmc))  in pmc_speculative_in_use()
156 					pmc->idx - INTEL_PMC_IDX_FIXED) & 0x3;  in pmc_speculative_in_use()
158 	return pmc->eventsel & ARCH_PERFMON_EVENTSEL_ENABLE;  in pmc_speculative_in_use()
186 void reprogram_counter(struct kvm_pmc *pmc);
190 int kvm_pmu_rdpmc(struct kvm_vcpu *vcpu, unsigned pmc, u64 *data);