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KVM headers: Trivially move kvm_pmc/kvm_pmu into a separate header
This allows intel/core.c in perf-events to no longer need kvm_host.h This is not sufficient for a refactor that allows multiple KVMs, however. Signed-off-by: Venkatesh Srinivas <venkateshs@chromium.org>
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| Original file line number | Diff line number | Diff line change |
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| /* SPDX-License-Identifier: GPL-2.0-only */ | ||
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| #ifndef _ASM_X86_KVM_PMU_H | ||
| #define _ASM_X86_KVM_PMU_H | ||
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| #include <linux/types.h> | ||
| #include <linux/mm.h> | ||
| #include <linux/mmu_notifier.h> | ||
| #include <linux/tracepoint.h> | ||
| #include <linux/cpumask.h> | ||
| #include <linux/irq_work.h> | ||
| #include <linux/irq.h> | ||
| #include <linux/workqueue.h> | ||
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| #include <linux/kvm.h> | ||
| #include <linux/kvm_para.h> | ||
| #include <linux/kvm_types.h> | ||
| #include <linux/perf_event.h> | ||
| #include <linux/pvclock_gtod.h> | ||
| #include <linux/clocksource.h> | ||
| #include <linux/irqbypass.h> | ||
| #include <linux/hyperv.h> | ||
| #include <linux/kfifo.h> | ||
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| #include <asm/apic.h> | ||
| #include <asm/pvclock-abi.h> | ||
| #include <asm/desc.h> | ||
| #include <asm/mtrr.h> | ||
| #include <asm/msr-index.h> | ||
| #include <asm/asm.h> | ||
| #include <asm/kvm_page_track.h> | ||
| #include <asm/kvm_vcpu_regs.h> | ||
| #include <asm/hyperv-tlfs.h> | ||
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| enum pmc_type { | ||
| KVM_PMC_GP = 0, | ||
| KVM_PMC_FIXED, | ||
| }; | ||
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| struct kvm_pmc { | ||
| enum pmc_type type; | ||
| u8 idx; | ||
| bool is_paused; | ||
| bool intr; | ||
| u64 counter; | ||
| u64 prev_counter; | ||
| u64 eventsel; | ||
| struct perf_event *perf_event; | ||
| struct kvm_vcpu *vcpu; | ||
| /* | ||
| * only for creating or reusing perf_event, | ||
| * eventsel value for general purpose counters, | ||
| * ctrl value for fixed counters. | ||
| */ | ||
| u64 current_config; | ||
| }; | ||
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| /* More counters may conflict with other existing Architectural MSRs */ | ||
| #define KVM_INTEL_PMC_MAX_GENERIC 8 | ||
| #define MSR_ARCH_PERFMON_PERFCTR_MAX (MSR_ARCH_PERFMON_PERFCTR0 + KVM_INTEL_PMC_MAX_GENERIC - 1) | ||
| #define MSR_ARCH_PERFMON_EVENTSEL_MAX (MSR_ARCH_PERFMON_EVENTSEL0 + KVM_INTEL_PMC_MAX_GENERIC - 1) | ||
| #define KVM_PMC_MAX_FIXED 3 | ||
| #define MSR_ARCH_PERFMON_FIXED_CTR_MAX (MSR_ARCH_PERFMON_FIXED_CTR0 + KVM_PMC_MAX_FIXED - 1) | ||
| #define KVM_AMD_PMC_MAX_GENERIC 6 | ||
| struct kvm_pmu { | ||
| u8 version; | ||
| unsigned nr_arch_gp_counters; | ||
| unsigned nr_arch_fixed_counters; | ||
| unsigned available_event_types; | ||
| u64 fixed_ctr_ctrl; | ||
| u64 fixed_ctr_ctrl_mask; | ||
| u64 global_ctrl; | ||
| u64 global_status; | ||
| u64 counter_bitmask[2]; | ||
| u64 global_ctrl_mask; | ||
| u64 global_ovf_ctrl_mask; | ||
| u64 reserved_bits; | ||
| u64 raw_event_mask; | ||
| struct kvm_pmc gp_counters[KVM_INTEL_PMC_MAX_GENERIC]; | ||
| struct kvm_pmc fixed_counters[KVM_PMC_MAX_FIXED]; | ||
| struct irq_work irq_work; | ||
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| /* | ||
| * Overlay the bitmap with a 64-bit atomic so that all bits can be | ||
| * set in a single access, e.g. to reprogram all counters when the PMU | ||
| * filter changes. | ||
| */ | ||
| union { | ||
| DECLARE_BITMAP(reprogram_pmi, X86_PMC_IDX_MAX); | ||
| atomic64_t __reprogram_pmi; | ||
| }; | ||
| DECLARE_BITMAP(all_valid_pmc_idx, X86_PMC_IDX_MAX); | ||
| DECLARE_BITMAP(pmc_in_use, X86_PMC_IDX_MAX); | ||
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| u64 ds_area; | ||
| u64 pebs_enable; | ||
| u64 pebs_enable_mask; | ||
| u64 pebs_data_cfg; | ||
| u64 pebs_data_cfg_mask; | ||
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| /* | ||
| * If a guest counter is cross-mapped to host counter with different | ||
| * index, its PEBS capability will be temporarily disabled. | ||
| * | ||
| * The user should make sure that this mask is updated | ||
| * after disabling interrupts and before perf_guest_get_msrs(); | ||
| */ | ||
| u64 host_cross_mapped_mask; | ||
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| /* | ||
| * The gate to release perf_events not marked in | ||
| * pmc_in_use only once in a vcpu time slice. | ||
| */ | ||
| bool need_cleanup; | ||
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| /* | ||
| * The total number of programmed perf_events and it helps to avoid | ||
| * redundant check before cleanup if guest don't use vPMU at all. | ||
| */ | ||
| u8 event_count; | ||
| }; | ||
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| #endif /* _ASM_X86_KVM_PMU_H */ |