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 20 struct 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 28 struct 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 37 extern 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 */ 44 extern uint64_t guest_test_phys_mem; 45 46 struct kvm_vm *perf_test_create_vm(enum vm_guest_mode mode, int vcpus, 47 uint64_t vcpu_memory_bytes, int slots, 48 enum vm_mem_backing_src_type backing_src); 49 void perf_test_destroy_vm(struct kvm_vm *vm); 50 void perf_test_setup_vcpus(struct kvm_vm *vm, int vcpus, 51 uint64_t vcpu_memory_bytes, 52 bool partition_vcpu_memory_access); 53 54 #endif /* SELFTEST_KVM_PERF_TEST_UTIL_H */ 55
