Cregit: Linux 7.0: pmu

Contributors: 9
Author	Tokens	Token Proportion	Commits	Commit Proportion
Like Xu	41	35.65%	4	19.05%
Paolo Bonzini	25	21.74%	3	14.29%
Sean Christopherson	22	19.13%	8	38.10%
Avi Kivity	12	10.43%	1	4.76%
Isaku Yamahata	7	6.09%	1	4.76%
Xiantao Zhang	3	2.61%	1	4.76%
Vitaly Kuznetsov	2	1.74%	1	4.76%
Wei Huang	2	1.74%	1	4.76%
Dapeng Mi	1	0.87%	1	4.76%
Total	115		21

/* 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 */

pmu_intel.h