diff options
| author | Colton Lewis <coltonlewis@google.com> | 2022-11-07 18:22:06 +0000 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2022-11-16 10:17:31 -0800 |
| commit | f11aa24bdbc66a10378d28ee962b95426e8d2a09 (patch) | |
| tree | 6391d54a54837b01473fe7cde5c50f728b411c44 /tools/testing/selftests/kvm/include/perf_test_util.h | |
| parent | b31f21a7e97eee501db86714868d84377e68e4df (diff) | |
KVM: selftests: create -r argument to specify random seed
Create a -r argument to specify a random seed. If no argument is
provided, the seed defaults to 1. The random seed is set with
perf_test_set_random_seed() and must be set before guest_code runs to
apply.
Signed-off-by: Colton Lewis <coltonlewis@google.com>
Reviewed-by: David Matlack <dmatlack@google.com>
Link: https://lore.kernel.org/r/20221107182208.479157-3-coltonlewis@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'tools/testing/selftests/kvm/include/perf_test_util.h')
| -rw-r--r-- | tools/testing/selftests/kvm/include/perf_test_util.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/include/perf_test_util.h b/tools/testing/selftests/kvm/include/perf_test_util.h index 849c875dd0ff..5a0e48b625a2 100644 --- a/tools/testing/selftests/kvm/include/perf_test_util.h +++ b/tools/testing/selftests/kvm/include/perf_test_util.h @@ -35,6 +35,7 @@ struct perf_test_args { uint64_t gpa; uint64_t size; uint64_t guest_page_size; + uint32_t random_seed; int wr_fract; /* Run vCPUs in L2 instead of L1, if the architecture supports it. */ @@ -56,6 +57,7 @@ struct kvm_vm *perf_test_create_vm(enum vm_guest_mode mode, int nr_vcpus, 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_set_random_seed(struct kvm_vm *vm, uint32_t random_seed); void perf_test_start_vcpu_threads(int vcpus, void (*vcpu_fn)(struct perf_test_vcpu_args *)); void perf_test_join_vcpu_threads(int vcpus); |