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[PATCH v2 2/4] selftests/mm: mseal_test add sealed madvise type

jeffxu@chromium.org posted 4 patches 1 year, 3 months ago
There is a newer version of this series
[PATCH v2 2/4] selftests/mm: mseal_test add sealed madvise type
Posted by jeffxu@chromium.org 1 year, 3 months ago 
From: Jeff Xu <jeffxu@chromium.org>

Add a testcase to cover all sealed madvise type.

Signed-off-by: Jeff Xu <jeffxu@chromium.org>
---
 tools/testing/selftests/mm/mseal_test.c | 108 +++++++++++++++++++++++-
 1 file changed, 107 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/mm/mseal_test.c b/tools/testing/selftests/mm/mseal_test.c
index adc646cf576c..ae06c354220d 100644
--- a/tools/testing/selftests/mm/mseal_test.c
+++ b/tools/testing/selftests/mm/mseal_test.c
@@ -2121,6 +2121,107 @@ static void test_seal_madvise_nodiscard(bool seal)
 	REPORT_TEST_PASS();
 }
 
+static void test_seal_discard_madvise_advice(void)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+	int sealed_advice[] = {MADV_FREE, MADV_DONTNEED,
+		MADV_DONTNEED_LOCKED, MADV_REMOVE,
+		MADV_DONTFORK, MADV_WIPEONFORK};
+	int size_sealed_advice = sizeof(sealed_advice) / sizeof(int);
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	ret = seal_single_address(ptr, size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	for (int i = 0; i < size_sealed_advice; i++) {
+		ret = sys_madvise(ptr, size, sealed_advice[i]);
+		FAIL_TEST_IF_FALSE(ret < 0);
+		FAIL_TEST_IF_FALSE(errno == EPERM);
+	}
+
+	REPORT_TEST_PASS();
+}
+
+static void test_munmap_free_multiple_ranges(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 8 * page_size;
+	int ret;
+	int prot;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* unmap one page from beginning. */
+	ret = sys_munmap(ptr, page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* unmap one page from middle. */
+	ret = sys_munmap(ptr + 4 * page_size, page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	size = get_vma_size(ptr + page_size, &prot);
+	FAIL_TEST_IF_FALSE(size == 3 * page_size);
+	FAIL_TEST_IF_FALSE(prot == 4);
+
+	size = get_vma_size(ptr +  5 * page_size, &prot);
+	FAIL_TEST_IF_FALSE(size == 3 * page_size);
+	FAIL_TEST_IF_FALSE(prot == 4);
+
+
+	/* seal the last page */
+	if (seal) {
+		ret = sys_mseal(ptr + 7 * page_size, page_size);
+		FAIL_TEST_IF_FALSE(!ret);
+
+		size = get_vma_size(ptr +  1 * page_size, &prot);
+		FAIL_TEST_IF_FALSE(size == 3 * page_size);
+		FAIL_TEST_IF_FALSE(prot == 4);
+
+		size = get_vma_size(ptr +  5 * page_size, &prot);
+		FAIL_TEST_IF_FALSE(size == 2 * page_size);
+		FAIL_TEST_IF_FALSE(prot == 4);
+
+		size = get_vma_size(ptr +  7 * page_size, &prot);
+		FAIL_TEST_IF_FALSE(size == 1 * page_size);
+		FAIL_TEST_IF_FALSE(prot == 4);
+	}
+
+	/* munmap all 8  pages from beginning */
+	ret = sys_munmap(ptr, 8 * page_size);
+	if (seal) {
+		FAIL_TEST_IF_FALSE(ret);
+
+		/* verify mapping are not changed */
+		size = get_vma_size(ptr + 1 * page_size, &prot);
+		FAIL_TEST_IF_FALSE(size == 3 * page_size);
+		FAIL_TEST_IF_FALSE(prot == 4);
+
+		size = get_vma_size(ptr +  5 * page_size, &prot);
+		FAIL_TEST_IF_FALSE(size == 2 * page_size);
+		FAIL_TEST_IF_FALSE(prot == 4);
+
+		size = get_vma_size(ptr +  7 * page_size, &prot);
+		FAIL_TEST_IF_FALSE(size == 1 * page_size);
+		FAIL_TEST_IF_FALSE(prot == 4);
+	} else {
+		FAIL_TEST_IF_FALSE(!ret);
+
+		for (int i = 0; i < 8; i++) {
+			size = get_vma_size(ptr, &prot);
+			FAIL_TEST_IF_FALSE(size == 0);
+		}
+	}
+
+	REPORT_TEST_PASS();
+}
+
 int main(int argc, char **argv)
 {
 	bool test_seal = seal_support();
@@ -2142,7 +2243,7 @@ int main(int argc, char **argv)
 	if (!get_vma_size_supported())
 		ksft_exit_skip("get_vma_size not supported\n");
 
-	ksft_set_plan(88);
+	ksft_set_plan(91);
 
 	test_seal_addseal();
 	test_seal_unmapped_start();
@@ -2251,5 +2352,10 @@ int main(int argc, char **argv)
 	test_seal_discard_ro_anon_on_pkey(false);
 	test_seal_discard_ro_anon_on_pkey(true);
 
+	test_seal_discard_madvise_advice();
+
+	test_munmap_free_multiple_ranges(false);
+	test_munmap_free_multiple_ranges(true);
+
 	ksft_finished();
 }
-- 
2.46.0.469.g59c65b2a67-goog
Re: [PATCH v2 2/4] selftests/mm: mseal_test add sealed madvise type
Posted by Pedro Falcato 1 year, 3 months ago 
On Thu, Aug 29, 2024 at 09:43:50PM GMT, jeffxu@chromium.org wrote:
> From: Jeff Xu <jeffxu@chromium.org>
> 
> Add a testcase to cover all sealed madvise type.
> 
> Signed-off-by: Jeff Xu <jeffxu@chromium.org>
> ---
>  tools/testing/selftests/mm/mseal_test.c | 108 +++++++++++++++++++++++-
>  1 file changed, 107 insertions(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/mm/mseal_test.c b/tools/testing/selftests/mm/mseal_test.c
> index adc646cf576c..ae06c354220d 100644
> --- a/tools/testing/selftests/mm/mseal_test.c
> +++ b/tools/testing/selftests/mm/mseal_test.c
> @@ -2121,6 +2121,107 @@ static void test_seal_madvise_nodiscard(bool seal)
>  	REPORT_TEST_PASS();
>  }
>  
> +static void test_seal_discard_madvise_advice(void)
> +{
> +	void *ptr;
> +	unsigned long page_size = getpagesize();
> +	unsigned long size = 4 * page_size;
> +	int ret;
> +	int sealed_advice[] = {MADV_FREE, MADV_DONTNEED,
> +		MADV_DONTNEED_LOCKED, MADV_REMOVE,
> +		MADV_DONTFORK, MADV_WIPEONFORK};
> +	int size_sealed_advice = sizeof(sealed_advice) / sizeof(int);
> +
> +	setup_single_address(size, &ptr);
> +	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
> +
> +	ret = seal_single_address(ptr, size);
> +	FAIL_TEST_IF_FALSE(!ret);
> +
> +	for (int i = 0; i < size_sealed_advice; i++) {
> +		ret = sys_madvise(ptr, size, sealed_advice[i]);
> +		FAIL_TEST_IF_FALSE(ret < 0);
> +		FAIL_TEST_IF_FALSE(errno == EPERM);
> +	}
> +
> +	REPORT_TEST_PASS();
> +}

This can replace some of the other 9 discard tests already there, no?

> +
> +static void test_munmap_free_multiple_ranges(bool seal)
> +{
> +	void *ptr;
> +	unsigned long page_size = getpagesize();
> +	unsigned long size = 8 * page_size;
> +	int ret;
> +	int prot;
> +
> +	setup_single_address(size, &ptr);
> +	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
> +
> +	/* unmap one page from beginning. */
> +	ret = sys_munmap(ptr, page_size);
> +	FAIL_TEST_IF_FALSE(!ret);
> +
> +	/* unmap one page from middle. */
> +	ret = sys_munmap(ptr + 4 * page_size, page_size);
> +	FAIL_TEST_IF_FALSE(!ret);
> +
> +	size = get_vma_size(ptr + page_size, &prot);
> +	FAIL_TEST_IF_FALSE(size == 3 * page_size);
> +	FAIL_TEST_IF_FALSE(prot == 4);
> +
> +	size = get_vma_size(ptr +  5 * page_size, &prot);
> +	FAIL_TEST_IF_FALSE(size == 3 * page_size);
> +	FAIL_TEST_IF_FALSE(prot == 4);
> +
> +
> +	/* seal the last page */
> +	if (seal) {
> +		ret = sys_mseal(ptr + 7 * page_size, page_size);
> +		FAIL_TEST_IF_FALSE(!ret);
> +
> +		size = get_vma_size(ptr +  1 * page_size, &prot);
> +		FAIL_TEST_IF_FALSE(size == 3 * page_size);
> +		FAIL_TEST_IF_FALSE(prot == 4);
> +
> +		size = get_vma_size(ptr +  5 * page_size, &prot);
> +		FAIL_TEST_IF_FALSE(size == 2 * page_size);
> +		FAIL_TEST_IF_FALSE(prot == 4);
> +
> +		size = get_vma_size(ptr +  7 * page_size, &prot);
> +		FAIL_TEST_IF_FALSE(size == 1 * page_size);
> +		FAIL_TEST_IF_FALSE(prot == 4);
> +	}
> +
> +	/* munmap all 8  pages from beginning */
> +	ret = sys_munmap(ptr, 8 * page_size);
> +	if (seal) {
> +		FAIL_TEST_IF_FALSE(ret);
> +
> +		/* verify mapping are not changed */
> +		size = get_vma_size(ptr + 1 * page_size, &prot);
> +		FAIL_TEST_IF_FALSE(size == 3 * page_size);
> +		FAIL_TEST_IF_FALSE(prot == 4);
> +
> +		size = get_vma_size(ptr +  5 * page_size, &prot);
> +		FAIL_TEST_IF_FALSE(size == 2 * page_size);
> +		FAIL_TEST_IF_FALSE(prot == 4);
> +
> +		size = get_vma_size(ptr +  7 * page_size, &prot);
> +		FAIL_TEST_IF_FALSE(size == 1 * page_size);
> +		FAIL_TEST_IF_FALSE(prot == 4);
> +	} else {
> +		FAIL_TEST_IF_FALSE(!ret);
> +
> +		for (int i = 0; i < 8; i++) {
> +			size = get_vma_size(ptr, &prot);
> +			FAIL_TEST_IF_FALSE(size == 0);
> +		}
> +	}
> +
> +	REPORT_TEST_PASS();
> +}

Unrelated munmap change.

-- 
Pedro
Re: [PATCH v2 2/4] selftests/mm: mseal_test add sealed madvise type
Posted by Jeff Xu 1 year, 3 months ago 
On Fri, Aug 30, 2024 at 5:52 AM Pedro Falcato <pedro.falcato@gmail.com> wrote:
>
> On Thu, Aug 29, 2024 at 09:43:50PM GMT, jeffxu@chromium.org wrote:
> > From: Jeff Xu <jeffxu@chromium.org>
> >
> > Add a testcase to cover all sealed madvise type.
> >
> > Signed-off-by: Jeff Xu <jeffxu@chromium.org>
> > ---
> >  tools/testing/selftests/mm/mseal_test.c | 108 +++++++++++++++++++++++-
> >  1 file changed, 107 insertions(+), 1 deletion(-)
> >
> > diff --git a/tools/testing/selftests/mm/mseal_test.c b/tools/testing/selftests/mm/mseal_test.c
> > index adc646cf576c..ae06c354220d 100644
> > --- a/tools/testing/selftests/mm/mseal_test.c
> > +++ b/tools/testing/selftests/mm/mseal_test.c
> > @@ -2121,6 +2121,107 @@ static void test_seal_madvise_nodiscard(bool seal)
> >       REPORT_TEST_PASS();
> >  }
> >
> > +static void test_seal_discard_madvise_advice(void)
> > +{
> > +     void *ptr;
> > +     unsigned long page_size = getpagesize();
> > +     unsigned long size = 4 * page_size;
> > +     int ret;
> > +     int sealed_advice[] = {MADV_FREE, MADV_DONTNEED,
> > +             MADV_DONTNEED_LOCKED, MADV_REMOVE,
> > +             MADV_DONTFORK, MADV_WIPEONFORK};
> > +     int size_sealed_advice = sizeof(sealed_advice) / sizeof(int);
> > +
> > +     setup_single_address(size, &ptr);
> > +     FAIL_TEST_IF_FALSE(ptr != (void *)-1);
> > +
> > +     ret = seal_single_address(ptr, size);
> > +     FAIL_TEST_IF_FALSE(!ret);
> > +
> > +     for (int i = 0; i < size_sealed_advice; i++) {
> > +             ret = sys_madvise(ptr, size, sealed_advice[i]);
> > +             FAIL_TEST_IF_FALSE(ret < 0);
> > +             FAIL_TEST_IF_FALSE(errno == EPERM);
> > +     }
> > +
> > +     REPORT_TEST_PASS();
> > +}
>
> This can replace some of the other 9 discard tests already there, no?
>
No, this  is focused on enumerating all types.

> > +
> > +static void test_munmap_free_multiple_ranges(bool seal)
> > +{
> > +     void *ptr;
> > +     unsigned long page_size = getpagesize();
> > +     unsigned long size = 8 * page_size;
> > +     int ret;
> > +     int prot;
> > +
> > +     setup_single_address(size, &ptr);
> > +     FAIL_TEST_IF_FALSE(ptr != (void *)-1);
> > +
> > +     /* unmap one page from beginning. */
> > +     ret = sys_munmap(ptr, page_size);
> > +     FAIL_TEST_IF_FALSE(!ret);
> > +
> > +     /* unmap one page from middle. */
> > +     ret = sys_munmap(ptr + 4 * page_size, page_size);
> > +     FAIL_TEST_IF_FALSE(!ret);
> > +
> > +     size = get_vma_size(ptr + page_size, &prot);
> > +     FAIL_TEST_IF_FALSE(size == 3 * page_size);
> > +     FAIL_TEST_IF_FALSE(prot == 4);
> > +
> > +     size = get_vma_size(ptr +  5 * page_size, &prot);
> > +     FAIL_TEST_IF_FALSE(size == 3 * page_size);
> > +     FAIL_TEST_IF_FALSE(prot == 4);
> > +
> > +
> > +     /* seal the last page */
> > +     if (seal) {
> > +             ret = sys_mseal(ptr + 7 * page_size, page_size);
> > +             FAIL_TEST_IF_FALSE(!ret);
> > +
> > +             size = get_vma_size(ptr +  1 * page_size, &prot);
> > +             FAIL_TEST_IF_FALSE(size == 3 * page_size);
> > +             FAIL_TEST_IF_FALSE(prot == 4);
> > +
> > +             size = get_vma_size(ptr +  5 * page_size, &prot);
> > +             FAIL_TEST_IF_FALSE(size == 2 * page_size);
> > +             FAIL_TEST_IF_FALSE(prot == 4);
> > +
> > +             size = get_vma_size(ptr +  7 * page_size, &prot);
> > +             FAIL_TEST_IF_FALSE(size == 1 * page_size);
> > +             FAIL_TEST_IF_FALSE(prot == 4);
> > +     }
> > +
> > +     /* munmap all 8  pages from beginning */
> > +     ret = sys_munmap(ptr, 8 * page_size);
> > +     if (seal) {
> > +             FAIL_TEST_IF_FALSE(ret);
> > +
> > +             /* verify mapping are not changed */
> > +             size = get_vma_size(ptr + 1 * page_size, &prot);
> > +             FAIL_TEST_IF_FALSE(size == 3 * page_size);
> > +             FAIL_TEST_IF_FALSE(prot == 4);
> > +
> > +             size = get_vma_size(ptr +  5 * page_size, &prot);
> > +             FAIL_TEST_IF_FALSE(size == 2 * page_size);
> > +             FAIL_TEST_IF_FALSE(prot == 4);
> > +
> > +             size = get_vma_size(ptr +  7 * page_size, &prot);
> > +             FAIL_TEST_IF_FALSE(size == 1 * page_size);
> > +             FAIL_TEST_IF_FALSE(prot == 4);
> > +     } else {
> > +             FAIL_TEST_IF_FALSE(!ret);
> > +
> > +             for (int i = 0; i < 8; i++) {
> > +                     size = get_vma_size(ptr, &prot);
> > +                     FAIL_TEST_IF_FALSE(size == 0);
> > +             }
> > +     }
> > +
> > +     REPORT_TEST_PASS();
> > +}
>
> Unrelated munmap change.
will move.

>
> --
> Pedro

Patchew 2.1-devel-b67e4c2

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