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// SPDX-License-Identifier: GPL-2.0
/*
* tools/testing/selftests/kvm/include/perf_test_util.h
*
* Copyright (C) 2020, Google LLC.
*/
#ifndef SELFTEST_KVM_PERF_TEST_UTIL_H
#define SELFTEST_KVM_PERF_TEST_UTIL_H
#include <pthread.h>
#include "kvm_util.h"
/* Default guest test virtual memory offset */
#define DEFAULT_GUEST_TEST_MEM 0xc0000000
#define DEFAULT_PER_VCPU_MEM_SIZE (1 << 30) /* 1G */
#define PERF_TEST_MEM_SLOT_INDEX 1
struct perf_test_vcpu_args {
uint64_t gpa;
uint64_t gva;
uint64_t pages;
/* Only used by the host userspace part of the vCPU thread */
struct kvm_vcpu *vcpu;
int vcpu_idx;
};
struct perf_test_args {
struct kvm_vm *vm;
/* The starting address and size of the guest test region. */
uint64_t gpa;
uint64_t size;
uint64_t guest_page_size;
int wr_fract;
/* Run vCPUs in L2 instead of L1, if the architecture supports it. */
bool nested;
struct perf_test_vcpu_args vcpu_args[KVM_MAX_VCPUS];
};
extern struct perf_test_args perf_test_args;
struct kvm_vm *perf_test_create_vm(enum vm_guest_mode mode, int nr_vcpus,
uint64_t vcpu_memory_bytes, int slots,
enum vm_mem_backing_src_type backing_src,
bool partition_vcpu_memory_access);
void perf_test_destroy_vm(struct kvm_vm *vm);
void perf_test_set_wr_fract(struct kvm_vm *vm, int wr_fract);
void perf_test_start_vcpu_threads(int vcpus, void (*vcpu_fn)(struct perf_test_vcpu_args *));
void perf_test_join_vcpu_threads(int vcpus);
void perf_test_guest_code(uint32_t vcpu_id);
uint64_t perf_test_nested_pages(int nr_vcpus);
void perf_test_setup_nested(struct kvm_vm *vm, int nr_vcpus, struct kvm_vcpu *vcpus[]);
#endif /* SELFTEST_KVM_PERF_TEST_UTIL_H */
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