1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __KVM_X86_VMX_PMU_INTEL_H 3 #define __KVM_X86_VMX_PMU_INTEL_H 4 5 #include <linux/kvm_host.h> 6 7 #include "cpuid.h" 8 vcpu_get_perf_capabilities(struct kvm_vcpu * vcpu)9static inline u64 vcpu_get_perf_capabilities(struct kvm_vcpu *vcpu) 10 { 11 if (!guest_cpu_cap_has(vcpu, X86_FEATURE_PDCM)) 12 return 0; 13 14 return vcpu->arch.perf_capabilities; 15 } 16 fw_writes_is_enabled(struct kvm_vcpu * vcpu)17static inline bool fw_writes_is_enabled(struct kvm_vcpu *vcpu) 18 { 19 return (vcpu_get_perf_capabilities(vcpu) & PERF_CAP_FW_WRITES) != 0; 20 } 21 22 bool intel_pmu_lbr_is_enabled(struct kvm_vcpu *vcpu); 23 int intel_pmu_create_guest_lbr_event(struct kvm_vcpu *vcpu); 24 25 struct lbr_desc { 26 /* Basic info about guest LBR records. */ 27 struct x86_pmu_lbr records; 28 29 /* 30 * Emulate LBR feature via passthrough LBR registers when the 31 * per-vcpu guest LBR event is scheduled on the current pcpu. 32 * 33 * The records may be inaccurate if the host reclaims the LBR. 34 */ 35 struct perf_event *event; 36 37 /* True if LBRs are marked as not intercepted in the MSR bitmap */ 38 bool msr_passthrough; 39 }; 40 41 extern struct x86_pmu_lbr vmx_lbr_caps; 42 43 #endif /* __KVM_X86_VMX_PMU_INTEL_H */ 44