/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __KVM_X86_VMX_PMU_INTEL_H
#define  __KVM_X86_VMX_PMU_INTEL_H

#include <linux/kvm_host.h>

#include "cpuid.h"

static inline u64 vcpu_get_perf_capabilities(struct kvm_vcpu *vcpu)
{
        if (!guest_cpu_cap_has(vcpu, X86_FEATURE_PDCM))
                return 0;

        return vcpu->arch.perf_capabilities;
}

static inline bool fw_writes_is_enabled(struct kvm_vcpu *vcpu)
{
        return (vcpu_get_perf_capabilities(vcpu) & PERF_CAP_FW_WRITES) != 0;
}

bool intel_pmu_lbr_is_enabled(struct kvm_vcpu *vcpu);
int intel_pmu_create_guest_lbr_event(struct kvm_vcpu *vcpu);

struct lbr_desc {
        /* Basic info about guest LBR records. */
        struct x86_pmu_lbr records;

        /*
         * Emulate LBR feature via passthrough LBR registers when the
         * per-vcpu guest LBR event is scheduled on the current pcpu.
         *
         * The records may be inaccurate if the host reclaims the LBR.
         */
        struct perf_event *event;

        /* True if LBRs are marked as not intercepted in the MSR bitmap */
        bool msr_passthrough;
};

extern struct x86_pmu_lbr vmx_lbr_caps;

#endif /* __KVM_X86_VMX_PMU_INTEL_H */