selftests: kvm: make hardware_disable_test less verbose

hardware_disable_test produces 512 snippets like
...
 main: [511] waiting semaphore
 run_test: [511] start vcpus
 run_test: [511] all threads launched
 main: [511] waiting 368us
 main: [511] killing child

and this doesn't have much value, let's print this info with pr_debug().

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20210323104331.1354800-1-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/tools/testing/selftests/kvm/hardware_disable_test.c b/tools/testing/selftests/kvm/hardware_disable_test.c
index 2f2eeb8..5aadf84 100644 (file)
--- a/tools/testing/selftests/kvm/hardware_disable_test.c
+++ b/tools/testing/selftests/kvm/hardware_disable_test.c
@@ -108,7 +108,7 @@ static void run_test(uint32_t run)
        kvm_vm_elf_load(vm, program_invocation_name, 0, 0);
        vm_create_irqchip(vm);
 
-       fprintf(stderr, "%s: [%d] start vcpus\n", __func__, run);
+       pr_debug("%s: [%d] start vcpus\n", __func__, run);
        for (i = 0; i < VCPU_NUM; ++i) {
                vm_vcpu_add_default(vm, i, guest_code);
                payloads[i].vm = vm;
@@ -124,7 +124,7 @@ static void run_test(uint32_t run)
                        check_set_affinity(throw_away, &cpu_set);
                }
        }
-       fprintf(stderr, "%s: [%d] all threads launched\n", __func__, run);
+       pr_debug("%s: [%d] all threads launched\n", __func__, run);
        sem_post(sem);
        for (i = 0; i < VCPU_NUM; ++i)
                check_join(threads[i], &b);
@@ -147,16 +147,16 @@ int main(int argc, char **argv)
                if (pid == 0)
                        run_test(i); /* This function always exits */
 
-               fprintf(stderr, "%s: [%d] waiting semaphore\n", __func__, i);
+               pr_debug("%s: [%d] waiting semaphore\n", __func__, i);
                sem_wait(sem);
                r = (rand() % DELAY_US_MAX) + 1;
-               fprintf(stderr, "%s: [%d] waiting %dus\n", __func__, i, r);
+               pr_debug("%s: [%d] waiting %dus\n", __func__, i, r);
                usleep(r);
                r = waitpid(pid, &s, WNOHANG);
                TEST_ASSERT(r != pid,
                            "%s: [%d] child exited unexpectedly status: [%d]",
                            __func__, i, s);
-               fprintf(stderr, "%s: [%d] killing child\n", __func__, i);
+               pr_debug("%s: [%d] killing child\n", __func__, i);
                kill(pid, SIGKILL);
        }