pmu.c (63f21f326fc9e068d04c2c1d0a722e8db65588ba) pmu.c (968635abd5f5986f3cb6f15602d365cf1b551c5d)
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Kernel-based Virtual Machine -- Performance Monitoring Unit support
4 *
5 * Copyright 2015 Red Hat, Inc. and/or its affiliates.
6 *
7 * Authors:
8 * Avi Kivity <avi@redhat.com>

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19#include "x86.h"
20#include "cpuid.h"
21#include "lapic.h"
22#include "pmu.h"
23
24/* This is enough to filter the vast majority of currently defined events. */
25#define KVM_PMU_EVENT_FILTER_MAX_EVENTS 300
26
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Kernel-based Virtual Machine -- Performance Monitoring Unit support
4 *
5 * Copyright 2015 Red Hat, Inc. and/or its affiliates.
6 *
7 * Authors:
8 * Avi Kivity <avi@redhat.com>

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19#include "x86.h"
20#include "cpuid.h"
21#include "lapic.h"
22#include "pmu.h"
23
24/* This is enough to filter the vast majority of currently defined events. */
25#define KVM_PMU_EVENT_FILTER_MAX_EVENTS 300
26
27struct x86_pmu_capability __read_mostly kvm_pmu_cap;
28EXPORT_SYMBOL_GPL(kvm_pmu_cap);
29
27/* NOTE:
28 * - Each perf counter is defined as "struct kvm_pmc";
29 * - There are two types of perf counters: general purpose (gp) and fixed.
30 * gp counters are stored in gp_counters[] and fixed counters are stored
31 * in fixed_counters[] respectively. Both of them are part of "struct
32 * kvm_pmu";
33 * - pmu.c understands the difference between gp counters and fixed counters.
34 * However AMD doesn't support fixed-counters;

--- 608 unchanged lines hidden --- 		30/* NOTE:
31 * - Each perf counter is defined as "struct kvm_pmc";
32 * - There are two types of perf counters: general purpose (gp) and fixed.
33 * gp counters are stored in gp_counters[] and fixed counters are stored
34 * in fixed_counters[] respectively. Both of them are part of "struct
35 * kvm_pmu";
36 * - pmu.c understands the difference between gp counters and fixed counters.
37 * However AMD doesn't support fixed-counters;

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