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Linux kernel mirror (for testing)
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1// SPDX-License-Identifier: GPL-2.0
2/*
3 * tools/testing/selftests/kvm/include/perf_test_util.h
4 *
5 * Copyright (C) 2020, Google LLC.
6 */
7
8#ifndef SELFTEST_KVM_PERF_TEST_UTIL_H
9#define SELFTEST_KVM_PERF_TEST_UTIL_H
10
11#include "kvm_util.h"
12
13/* Default guest test virtual memory offset */
14#define DEFAULT_GUEST_TEST_MEM 0xc0000000
15
16#define DEFAULT_PER_VCPU_MEM_SIZE (1 << 30) /* 1G */
17
18#define PERF_TEST_MEM_SLOT_INDEX 1
19
20struct perf_test_vcpu_args {
21 uint64_t gva;
22 uint64_t pages;
23
24 /* Only used by the host userspace part of the vCPU thread */
25 int vcpu_id;
26};
27
28struct perf_test_args {
29 struct kvm_vm *vm;
30 uint64_t host_page_size;
31 uint64_t guest_page_size;
32 int wr_fract;
33
34 struct perf_test_vcpu_args vcpu_args[KVM_MAX_VCPUS];
35};
36
37extern struct perf_test_args perf_test_args;
38
39/*
40 * Guest physical memory offset of the testing memory slot.
41 * This will be set to the topmost valid physical address minus
42 * the test memory size.
43 */
44extern uint64_t guest_test_phys_mem;
45
46struct kvm_vm *perf_test_create_vm(enum vm_guest_mode mode, int vcpus,
47 uint64_t vcpu_memory_bytes);
48void perf_test_destroy_vm(struct kvm_vm *vm);
49void perf_test_setup_vcpus(struct kvm_vm *vm, int vcpus, uint64_t vcpu_memory_bytes);
50
51#endif /* SELFTEST_KVM_PERF_TEST_UTIL_H */