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| author | David Matlack <[email protected]> | 2021-08-05 17:28:21 +0000 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2021-08-06 14:01:40 +0000 |
| commit | 32bdc01988413031c6e743714c2b40bdd773e5db (patch) | |
| tree | 89d397f731c7bcc0ea7bec4a0f7dabf76878cf24 /tools/testing/selftests/kvm/lib/perf_test_util.c | |
| parent | KVM: selftests: Support multiple slots in dirty_log_perf_test (diff) | |
| download | kernel-32bdc01988413031c6e743714c2b40bdd773e5db.tar.gz kernel-32bdc01988413031c6e743714c2b40bdd773e5db.zip | |
KVM: selftests: Move vcpu_args_set into perf_test_util
perf_test_util is used to set up KVM selftests where vCPUs touch a
region of memory. The guest code is implemented in perf_test_util.c (not
the calling selftests). The guest code requires a 1 parameter, the
vcpuid, which has to be set by calling vcpu_args_set(vm, vcpu_id, 1,
vcpu_id).
Today all of the selftests that use perf_test_util are making this call.
Instead, perf_test_util should just do it. This will save some code but
more importantly prevents mistakes since totally non-obvious that this
needs to be called and failing to do so results in vCPUs not accessing
the right regions of memory.
Signed-off-by: David Matlack <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'tools/testing/selftests/kvm/lib/perf_test_util.c')
| -rw-r--r-- | tools/testing/selftests/kvm/lib/perf_test_util.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/lib/perf_test_util.c b/tools/testing/selftests/kvm/lib/perf_test_util.c index aebb223d34a7..0ef80dbdc116 100644 --- a/tools/testing/selftests/kvm/lib/perf_test_util.c +++ b/tools/testing/selftests/kvm/lib/perf_test_util.c @@ -150,6 +150,8 @@ void perf_test_setup_vcpus(struct kvm_vm *vm, int vcpus, vcpu_gpa = guest_test_phys_mem; } + vcpu_args_set(vm, vcpu_id, 1, vcpu_id); + pr_debug("Added VCPU %d with test mem gpa [%lx, %lx)\n", vcpu_id, vcpu_gpa, vcpu_gpa + (vcpu_args->pages * perf_test_args.guest_page_size)); |