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/*
* Copyright 2019 The Hafnium Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include "hf/arch/types.h"
#include "hf/cpu.h"
#include "vmapi/hf/spci.h"
/**
* Set to disable cycle counting when event counting is prohibited.
*/
#define PMCR_EL0_DP 0x10
/**
* Set to enable export of events where not prohibited.
*/
#define PMCR_EL0_X 0x8
/**
* Set to enable event counting.
*/
#define PMCR_EL0_E 0x1
/**
* Set to disable cycle counting in EL1.
*/
#define PMCCFILTR_EL0_P 0x80000000
/**
* Set to disable cycle counting in EL0.
*/
#define PMCCFILTR_EL0_U 0x40000000
/**
* Cycle counting in non-secure EL1 is enabled if NSK == P.
*/
#define PMCCFILTR_EL0_NSK 0x20000000
/**
* Cycle counting in non-secure EL0 is enabled if NSU == U.
*/
#define PMCCFILTR_EL0_NSU 0x10000000
/**
* Set to enable cycle counting in EL2.
*/
#define PMCCFILTR_EL0_NSH 0x8000000
/**
* Cycle counting in EL3 is enabled if M == P.
*/
#define PMCCFILTR_EL0_M 0x4000000
/**
* Cycle counting in Secutre EL2 is enabled if SH != NSH.
*/
#define PMCCFILTR_EL0_SH 0x1000000
bool perfmon_is_register_access(uintreg_t esr_el2);
bool perfmon_process_access(struct vcpu *vcpu, spci_vm_id_t vm_id,
uintreg_t esr_el2);
uintreg_t perfmon_get_pmccfiltr_el0_init_value(spci_vm_id_t vm_id);