You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
121 lines
4.1 KiB
121 lines
4.1 KiB
/* |
|
* Copyright (C) 2015 Linaro Ltd. |
|
* Author: Shannon Zhao <shannon.zhao@linaro.org> |
|
* |
|
* This program is free software; you can redistribute it and/or modify |
|
* it under the terms of the GNU General Public License version 2 as |
|
* published by the Free Software Foundation. |
|
* |
|
* This program is distributed in the hope that it will be useful, |
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
* GNU General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU General Public License |
|
* along with this program. If not, see <http://www.gnu.org/licenses/>. |
|
*/ |
|
|
|
#ifndef __ASM_ARM_KVM_PMU_H |
|
#define __ASM_ARM_KVM_PMU_H |
|
|
|
#include <linux/perf_event.h> |
|
#include <asm/perf_event.h> |
|
|
|
#define ARMV8_PMU_CYCLE_IDX (ARMV8_PMU_MAX_COUNTERS - 1) |
|
|
|
#ifdef CONFIG_KVM_ARM_PMU |
|
|
|
struct kvm_pmc { |
|
u8 idx; /* index into the pmu->pmc array */ |
|
struct perf_event *perf_event; |
|
u64 bitmask; |
|
}; |
|
|
|
struct kvm_pmu { |
|
int irq_num; |
|
struct kvm_pmc pmc[ARMV8_PMU_MAX_COUNTERS]; |
|
bool ready; |
|
bool created; |
|
bool irq_level; |
|
}; |
|
|
|
#define kvm_arm_pmu_v3_ready(v) ((v)->arch.pmu.ready) |
|
#define kvm_arm_pmu_irq_initialized(v) ((v)->arch.pmu.irq_num >= VGIC_NR_SGIS) |
|
u64 kvm_pmu_get_counter_value(struct kvm_vcpu *vcpu, u64 select_idx); |
|
void kvm_pmu_set_counter_value(struct kvm_vcpu *vcpu, u64 select_idx, u64 val); |
|
u64 kvm_pmu_valid_counter_mask(struct kvm_vcpu *vcpu); |
|
void kvm_pmu_vcpu_reset(struct kvm_vcpu *vcpu); |
|
void kvm_pmu_vcpu_destroy(struct kvm_vcpu *vcpu); |
|
void kvm_pmu_disable_counter(struct kvm_vcpu *vcpu, u64 val); |
|
void kvm_pmu_enable_counter(struct kvm_vcpu *vcpu, u64 val); |
|
void kvm_pmu_flush_hwstate(struct kvm_vcpu *vcpu); |
|
void kvm_pmu_sync_hwstate(struct kvm_vcpu *vcpu); |
|
bool kvm_pmu_should_notify_user(struct kvm_vcpu *vcpu); |
|
void kvm_pmu_update_run(struct kvm_vcpu *vcpu); |
|
void kvm_pmu_software_increment(struct kvm_vcpu *vcpu, u64 val); |
|
void kvm_pmu_handle_pmcr(struct kvm_vcpu *vcpu, u64 val); |
|
void kvm_pmu_set_counter_event_type(struct kvm_vcpu *vcpu, u64 data, |
|
u64 select_idx); |
|
bool kvm_arm_support_pmu_v3(void); |
|
int kvm_arm_pmu_v3_set_attr(struct kvm_vcpu *vcpu, |
|
struct kvm_device_attr *attr); |
|
int kvm_arm_pmu_v3_get_attr(struct kvm_vcpu *vcpu, |
|
struct kvm_device_attr *attr); |
|
int kvm_arm_pmu_v3_has_attr(struct kvm_vcpu *vcpu, |
|
struct kvm_device_attr *attr); |
|
int kvm_arm_pmu_v3_enable(struct kvm_vcpu *vcpu); |
|
#else |
|
struct kvm_pmu { |
|
}; |
|
|
|
#define kvm_arm_pmu_v3_ready(v) (false) |
|
#define kvm_arm_pmu_irq_initialized(v) (false) |
|
static inline u64 kvm_pmu_get_counter_value(struct kvm_vcpu *vcpu, |
|
u64 select_idx) |
|
{ |
|
return 0; |
|
} |
|
static inline void kvm_pmu_set_counter_value(struct kvm_vcpu *vcpu, |
|
u64 select_idx, u64 val) {} |
|
static inline u64 kvm_pmu_valid_counter_mask(struct kvm_vcpu *vcpu) |
|
{ |
|
return 0; |
|
} |
|
static inline void kvm_pmu_vcpu_reset(struct kvm_vcpu *vcpu) {} |
|
static inline void kvm_pmu_vcpu_destroy(struct kvm_vcpu *vcpu) {} |
|
static inline void kvm_pmu_disable_counter(struct kvm_vcpu *vcpu, u64 val) {} |
|
static inline void kvm_pmu_enable_counter(struct kvm_vcpu *vcpu, u64 val) {} |
|
static inline void kvm_pmu_flush_hwstate(struct kvm_vcpu *vcpu) {} |
|
static inline void kvm_pmu_sync_hwstate(struct kvm_vcpu *vcpu) {} |
|
static inline bool kvm_pmu_should_notify_user(struct kvm_vcpu *vcpu) |
|
{ |
|
return false; |
|
} |
|
static inline void kvm_pmu_update_run(struct kvm_vcpu *vcpu) {} |
|
static inline void kvm_pmu_software_increment(struct kvm_vcpu *vcpu, u64 val) {} |
|
static inline void kvm_pmu_handle_pmcr(struct kvm_vcpu *vcpu, u64 val) {} |
|
static inline void kvm_pmu_set_counter_event_type(struct kvm_vcpu *vcpu, |
|
u64 data, u64 select_idx) {} |
|
static inline bool kvm_arm_support_pmu_v3(void) { return false; } |
|
static inline int kvm_arm_pmu_v3_set_attr(struct kvm_vcpu *vcpu, |
|
struct kvm_device_attr *attr) |
|
{ |
|
return -ENXIO; |
|
} |
|
static inline int kvm_arm_pmu_v3_get_attr(struct kvm_vcpu *vcpu, |
|
struct kvm_device_attr *attr) |
|
{ |
|
return -ENXIO; |
|
} |
|
static inline int kvm_arm_pmu_v3_has_attr(struct kvm_vcpu *vcpu, |
|
struct kvm_device_attr *attr) |
|
{ |
|
return -ENXIO; |
|
} |
|
static inline int kvm_arm_pmu_v3_enable(struct kvm_vcpu *vcpu) |
|
{ |
|
return 0; |
|
} |
|
#endif |
|
|
|
#endif
|
|
|