On 10/19/23 2:59 PM, Thomas Huth wrote:
> For easier use of the tests in automation and for having some
> status information for the user while the test is running, let's
> provide some TAP output in this test.
LGTM. I was thinking why kselftest.h hasn't been included. I found out that
test_util.h includes kselftest.h.

> 
> Signed-off-by: Thomas Huth <th...@redhat.com>
Reviewed-by: Muhammad Usama Anjum <usama.an...@collabora.com>

> ---
>  NB: This patch does not use the interface from kselftest_harness.h
>      since it is not very suitable for the for-loop in this patch.
> 
>  tools/testing/selftests/kvm/steal_time.c | 46 ++++++++++++------------
>  1 file changed, 23 insertions(+), 23 deletions(-)
> 
> diff --git a/tools/testing/selftests/kvm/steal_time.c 
> b/tools/testing/selftests/kvm/steal_time.c
> index 171adfb2a6cb..aa6149eb9ea1 100644
> --- a/tools/testing/selftests/kvm/steal_time.c
> +++ b/tools/testing/selftests/kvm/steal_time.c
> @@ -81,20 +81,18 @@ static void steal_time_init(struct kvm_vcpu *vcpu, 
> uint32_t i)
>  static void steal_time_dump(struct kvm_vm *vm, uint32_t vcpu_idx)
>  {
>       struct kvm_steal_time *st = addr_gva2hva(vm, (ulong)st_gva[vcpu_idx]);
> -     int i;
>  
> -     pr_info("VCPU%d:\n", vcpu_idx);
> -     pr_info("    steal:     %lld\n", st->steal);
> -     pr_info("    version:   %d\n", st->version);
> -     pr_info("    flags:     %d\n", st->flags);
> -     pr_info("    preempted: %d\n", st->preempted);
> -     pr_info("    u8_pad:    ");
> -     for (i = 0; i < 3; ++i)
> -             pr_info("%d", st->u8_pad[i]);
> -     pr_info("\n    pad:       ");
> -     for (i = 0; i < 11; ++i)
> -             pr_info("%d", st->pad[i]);
> -     pr_info("\n");
> +     ksft_print_msg("VCPU%d:\n", vcpu_idx);
> +     ksft_print_msg("    steal:     %lld\n", st->steal);
> +     ksft_print_msg("    version:   %d\n", st->version);
> +     ksft_print_msg("    flags:     %d\n", st->flags);
> +     ksft_print_msg("    preempted: %d\n", st->preempted);
> +     ksft_print_msg("    u8_pad:    %d %d %d\n",
> +                     st->u8_pad[0], st->u8_pad[1], st->u8_pad[2]);
> +     ksft_print_msg("    pad:       %d %d %d %d %d %d %d %d %d %d %d\n",
> +                     st->pad[0], st->pad[1], st->pad[2], st->pad[3],
> +                     st->pad[4], st->pad[5], st->pad[6], st->pad[7],
> +                     st->pad[8], st->pad[9], st->pad[10]);
>  }
>  
>  #elif defined(__aarch64__)
> @@ -197,10 +195,10 @@ static void steal_time_dump(struct kvm_vm *vm, uint32_t 
> vcpu_idx)
>  {
>       struct st_time *st = addr_gva2hva(vm, (ulong)st_gva[vcpu_idx]);
>  
> -     pr_info("VCPU%d:\n", vcpu_idx);
> -     pr_info("    rev:     %d\n", st->rev);
> -     pr_info("    attr:    %d\n", st->attr);
> -     pr_info("    st_time: %ld\n", st->st_time);
> +     ksft_print_msg("VCPU%d:\n", vcpu_idx);
> +     ksft_print_msg("    rev:     %d\n", st->rev);
> +     ksft_print_msg("    attr:    %d\n", st->attr);
> +     ksft_print_msg("    st_time: %ld\n", st->st_time);
>  }
>  
>  #endif
> @@ -267,7 +265,9 @@ int main(int ac, char **av)
>       vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS, ST_GPA_BASE, 1, 
> gpages, 0);
>       virt_map(vm, ST_GPA_BASE, ST_GPA_BASE, gpages);
>  
> +     ksft_print_header();
>       TEST_REQUIRE(is_steal_time_supported(vcpus[0]));
> +     ksft_set_plan(NR_VCPUS);
>  
>       /* Run test on each VCPU */
>       for (i = 0; i < NR_VCPUS; ++i) {
> @@ -308,14 +308,14 @@ int main(int ac, char **av)
>                           run_delay, stolen_time);
>  
>               if (verbose) {
> -                     pr_info("VCPU%d: total-stolen-time=%ld 
> test-stolen-time=%ld", i,
> -                             guest_stolen_time[i], stolen_time);
> -                     if (stolen_time == run_delay)
> -                             pr_info(" (BONUS: guest test-stolen-time even 
> exactly matches test-run_delay)");
> -                     pr_info("\n");
> +                     ksft_print_msg("VCPU%d: total-stolen-time=%ld 
> test-stolen-time=%ld%s\n",
> +                                    i, guest_stolen_time[i], stolen_time,
> +                                    stolen_time == run_delay ?
> +                                    " (BONUS: guest test-stolen-time even 
> exactly matches test-run_delay)" : "");
>                       steal_time_dump(vm, i);
>               }
> +             ksft_test_result_pass("vcpu%d\n", i);
>       }
>  
> -     return 0;
> +     ksft_finished();        /* Print results and exit() accordingly */
>  }

-- 
BR,
Muhammad Usama Anjum

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