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authorSean Christopherson <seanjc@google.com>2021-11-11 00:03:10 +0000
committerPaolo Bonzini <pbonzini@redhat.com>2021-11-16 07:43:27 -0500
commit13bbc70329c8df003e64c4fbea8678f9db0e75d5 (patch)
tree89938a533e4f343ed29197fc6add73ab18b8ba26 /tools/testing/selftests/kvm/dirty_log_perf_test.c
parentcf1d59300ab27af6a2e96b4882fe3d9a72b32b15 (diff)
downloadlinux-13bbc70329c8df003e64c4fbea8678f9db0e75d5.tar.bz2
KVM: selftests: Sync perf_test_args to guest during VM creation
Copy perf_test_args to the guest during VM creation instead of relying on the caller to do so at their leisure. Ideally, tests wouldn't even be able to modify perf_test_args, i.e. they would have no motivation to do the sync, but enforcing that is arguably a net negative for readability. No functional change intended. [Set wr_fract=1 by default and add helper to override it since the new access_tracking_perf_test needs to set it dynamically.] Signed-off-by: Sean Christopherson <seanjc@google.com> Signed-off-by: David Matlack <dmatlack@google.com> Reviewed-by: Ben Gardon <bgardon@google.com> Message-Id: <20211111000310.1435032-13-dmatlack@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/testing/selftests/kvm/dirty_log_perf_test.c')
-rw-r--r--tools/testing/selftests/kvm/dirty_log_perf_test.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/tools/testing/selftests/kvm/dirty_log_perf_test.c b/tools/testing/selftests/kvm/dirty_log_perf_test.c
index 62f9cc2a3146..583b4d95aa98 100644
--- a/tools/testing/selftests/kvm/dirty_log_perf_test.c
+++ b/tools/testing/selftests/kvm/dirty_log_perf_test.c
@@ -189,7 +189,7 @@ static void run_test(enum vm_guest_mode mode, void *arg)
p->slots, p->backing_src,
p->partition_vcpu_memory_access);
- perf_test_args.wr_fract = p->wr_fract;
+ perf_test_set_wr_fract(vm, p->wr_fract);
guest_num_pages = (nr_vcpus * guest_percpu_mem_size) >> vm_get_page_shift(vm);
guest_num_pages = vm_adjust_num_guest_pages(mode, guest_num_pages);
@@ -207,8 +207,6 @@ static void run_test(enum vm_guest_mode mode, void *arg)
vcpu_threads = malloc(nr_vcpus * sizeof(*vcpu_threads));
TEST_ASSERT(vcpu_threads, "Memory allocation failed");
- sync_global_to_guest(vm, perf_test_args);
-
/* Start the iterations */
iteration = 0;
host_quit = false;