Re: [PATCH v10 3/5] selftest mm/mseal memory sealing

Muhammad Usama Anjum
2024-04-15T18:32:16Z

Please fix following for this and fifth patch as well:

--> checkpatch.pl --codespell tools/testing/selftests/mm/mseal_test.c

WARNING: Macros with flow control statements should be avoided
#42: FILE: tools/testing/selftests/mm/mseal_test.c:42:
+#define FAIL_TEST_IF_FALSE(c) do {\
+ if (!(c)) {\
+ ksft_test_result_fail("%s, line:%d\n", __func__,
__LINE__);\
+ goto test_end;\
+ } \
+ } \
+ while (0)

WARNING: Macros with flow control statements should be avoided
#50: FILE: tools/testing/selftests/mm/mseal_test.c:50:
+#define SKIP_TEST_IF_FALSE(c) do {\
+ if (!(c)) {\
+ ksft_test_result_skip("%s, line:%d\n", __func__,
__LINE__);\
+ goto test_end;\
+ } \
+ } \
+ while (0)

WARNING: Macros with flow control statements should be avoided
#59: FILE: tools/testing/selftests/mm/mseal_test.c:59:
+#define TEST_END_CHECK() {\
+ ksft_test_result_pass("%s\n", __func__);\
+ return;\
+test_end:\
+ return;\
+}

On 4/15/24 9:35 PM, jeffxu@chromium.org wrote:
> From: Jeff Xu <jeffxu@chromium.org>
>
> selftest for memory sealing change in mmap() and mseal().
>
> Signed-off-by: Jeff Xu <jeffxu@chromium.org>
> ---
> tools/testing/selftests/mm/.gitignore | 1 +
> tools/testing/selftests/mm/Makefile | 1 +
> tools/testing/selftests/mm/mseal_test.c | 1836 +++++++++++++++++++++++
> 3 files changed, 1838 insertions(+)
> create mode 100644 tools/testing/selftests/mm/mseal_test.c
>
> diff --git a/tools/testing/selftests/mm/.gitignore b/tools/testing/selftests/mm/.gitignore
> index d26e962f2ac4..98eaa4590f11 100644
> --- a/tools/testing/selftests/mm/.gitignore
> +++ b/tools/testing/selftests/mm/.gitignore
> @@ -47,3 +47,4 @@ mkdirty
> va_high_addr_switch
> hugetlb_fault_after_madv
> hugetlb_madv_vs_map
> +mseal_test
> diff --git a/tools/testing/selftests/mm/Makefile b/tools/testing/selftests/mm/Makefile
> index eb5f39a2668b..95d10fe1b3c1 100644
> --- a/tools/testing/selftests/mm/Makefile
> +++ b/tools/testing/selftests/mm/Makefile
> @@ -59,6 +59,7 @@ TEST_GEN_FILES += mlock2-tests
> TEST_GEN_FILES += mrelease_test
> TEST_GEN_FILES += mremap_dontunmap
> TEST_GEN_FILES += mremap_test
> +TEST_GEN_FILES += mseal_test
> TEST_GEN_FILES += on-fault-limit
> TEST_GEN_FILES += pagemap_ioctl
> TEST_GEN_FILES += thuge-gen
> diff --git a/tools/testing/selftests/mm/mseal_test.c b/tools/testing/selftests/mm/mseal_test.c
> new file mode 100644
> index 000000000000..06c780d1d8e5
> --- /dev/null
> +++ b/tools/testing/selftests/mm/mseal_test.
> +static void __write_pkey_reg(u64 pkey_reg)
> +{
> +#if defined(__i386__) || defined(__x86_64__) /* arch */
> + unsigned int eax = pkey_reg;
> + unsigned int ecx = 0;
> + unsigned int edx = 0;
> +
> + asm volatile(".byte 0x0f,0x01,0xef\n\t"
> + : : "a" (eax), "c" (ecx), "d" (edx));
> + assert(pkey_reg == __read_pkey_reg());
Use ksft_exit_fail_msg instead of assert to stay inside TAP format if
condition is false and error is generated.

> +int main(int argc, char **argv)
> +{
> + bool test_seal = seal_support();
> +
> + ksft_print_header();
> +
> + if (!test_seal)
> + ksft_exit_skip("sealing not supported, check CONFIG_64BIT\n");
> +
> + if (!pkey_supported())
> + ksft_print_msg("PKEY not supported\n");
> +
> + ksft_set_plan(80);
> +
> + test_seal_addseal();
> + test_seal_unmapped_start();
> + test_seal_unmapped_middle();
> + test_seal_unmapped_end();
> + test_seal_multiple_vmas();
> + test_seal_split_start();
> + test_seal_split_end();
> + test_seal_invalid_input();
> + test_seal_zero_length();
> + test_seal_twice();
> +
> + test_seal_mprotect(false);
> + test_seal_mprotect(true);
> +
> + test_seal_start_mprotect(false);
> + test_seal_start_mprotect(true);
> +
> + test_seal_end_mprotect(false);
> + test_seal_end_mprotect(true);
> +
> + test_seal_mprotect_unalign_len(false);
> + test_seal_mprotect_unalign_len(true);
> +
> + test_seal_mprotect_unalign_len_variant_2(false);
> + test_seal_mprotect_unalign_len_variant_2(true);
> +
> + test_seal_mprotect_two_vma(false);
> + test_seal_mprotect_two_vma(true);
> +
> + test_seal_mprotect_two_vma_with_split(false);
> + test_seal_mprotect_two_vma_with_split(true);
> +
> + test_seal_mprotect_partial_mprotect(false);
> + test_seal_mprotect_partial_mprotect(true);
> +
> + test_seal_mprotect_two_vma_with_gap(false);
> + test_seal_mprotect_two_vma_with_gap(true);
> +
> + test_seal_mprotect_merge(false);
> + test_seal_mprotect_merge(true);
> +
> + test_seal_mprotect_split(false);
> + test_seal_mprotect_split(true);
> +
> + test_seal_munmap(false);
> + test_seal_munmap(true);
> + test_seal_munmap_two_vma(false);
> + test_seal_munmap_two_vma(true);
> + test_seal_munmap_vma_with_gap(false);
> + test_seal_munmap_vma_with_gap(true);
> +
> + test_munmap_start_freed(false);
> + test_munmap_start_freed(true);
> + test_munmap_middle_freed(false);
> + test_munmap_middle_freed(true);
> + test_munmap_end_freed(false);
> + test_munmap_end_freed(true);
> +
> + test_seal_mremap_shrink(false);
> + test_seal_mremap_shrink(true);
> + test_seal_mremap_expand(false);
> + test_seal_mremap_expand(true);
> + test_seal_mremap_move(false);
> + test_seal_mremap_move(true);
> +
> + test_seal_mremap_shrink_fixed(false);
> + test_seal_mremap_shrink_fixed(true);
> + test_seal_mremap_expand_fixed(false);
> + test_seal_mremap_expand_fixed(true);
> + test_seal_mremap_move_fixed(false);
> + test_seal_mremap_move_fixed(true);
> + test_seal_mremap_move_dontunmap(false);
> + test_seal_mremap_move_dontunmap(true);
> + test_seal_mremap_move_fixed_zero(false);
> + test_seal_mremap_move_fixed_zero(true);
> + test_seal_mremap_move_dontunmap_anyaddr(false);
> + test_seal_mremap_move_dontunmap_anyaddr(true);
> + test_seal_discard_ro_anon(false);
> + test_seal_discard_ro_anon(true);
> + test_seal_discard_ro_anon_on_rw(false);
> + test_seal_discard_ro_anon_on_rw(true);
> + test_seal_discard_ro_anon_on_shared(false);
> + test_seal_discard_ro_anon_on_shared(true);
> + test_seal_discard_ro_anon_on_filebacked(false);
> + test_seal_discard_ro_anon_on_filebacked(true);
> + test_seal_mmap_overwrite_prot(false);
> + test_seal_mmap_overwrite_prot(true);
> + test_seal_mmap_expand(false);
> + test_seal_mmap_expand(true);
> + test_seal_mmap_shrink(false);
> + test_seal_mmap_shrink(true);
> +
> + test_seal_merge_and_split();
> + test_seal_zero_address();
> +
> + test_seal_discard_ro_anon_on_pkey(false);
> + test_seal_discard_ro_anon_on_pkey(true);
> +
> + ksft_finished();
> + return 0;
The return isn't needed as ksft_finished() calls exit() with right exit code.

> +}

--
BR,
Muhammad Usama Anjum