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selftests/mm: protection_keys: use kselftest framework

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Convert protection_keys test to use kselftest framework for reporting and
tracking successful and failing runs.

Adjust dprintf0() printouts to use "#" in the beginning of the line for
TAP compatibility.

Link: https://lore.kernel.org/20260511162840.375890-18-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Tested-by: Luiz Capitulino <luizcap@redhat.com>
Tested-by: Sarthak Sharma <sarthak.sharma@arm.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Donet Tom <donettom@linux.ibm.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Liam Howlett <liam@infradead.org>
Cc: Li Wang <li.wang@linux.dev>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Nico Pache <npache@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Mike Rapoport (Microsoft) 2026-05-11 19:28:01 +03:00 committed by Andrew Morton
parent a932f05e2e
commit 04d0c0092b
2 changed files with 23 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
tools/testing/selftests/mm/pkey-helpers.h
View File

@ -71,13 +71,14 @@ static inline void sigsafe_printf(const char *format, ...)
extern void abort_hooks(void);
#define pkey_assert(condition) do { \
if (!(condition)) { \
dprintf0("assert() at %s::%d test_nr: %d iteration: %d\n", \
__FILE__, __LINE__, \
test_nr, iteration_nr); \
dprintf0("errno at assert: %d", errno); \
abort_hooks(); \
exit(__LINE__); \
} \
dprintf0("# assert() at %s::%d test_nr: %d iteration: %d\n", \
__FILE__, __LINE__, \
test_nr, iteration_nr); \
dprintf0("# errno at assert: %d\n", errno); \
abort_hooks(); \
ksft_exit_fail_msg("test %d (iteration %d)\n", \
test_nr, iteration_nr); \
} \
} while (0)
#define barrier() __asm__ __volatile__("": : :"memory")

26
tools/testing/selftests/mm/protection_keys.c
View File

@ -136,6 +136,7 @@ static void tracing_off(void)
void abort_hooks(void)
{
fflush(stdout);
fprintf(stderr, "running %s()...\n", __func__);
tracing_off();
#ifdef SLEEP_ON_ABORT
@ -370,8 +371,8 @@ static void signal_handler(int signum, siginfo_t *si, void *vucontext)
if ((si->si_code == SEGV_MAPERR) ||
(si->si_code == SEGV_ACCERR) ||
(si->si_code == SEGV_BNDERR)) {
printf("non-PK si_code, exiting...\n");
exit(4);
dprintf0("# non-PK si_code: %d, exiting...\n", si->si_code);
exit(1);
}
si_pkey_ptr = siginfo_get_pkey_ptr(si);
@ -719,7 +720,7 @@ static void setup_hugetlbfs(void)
long hpagesz_mb;
if (geteuid() != 0) {
fprintf(stderr, "WARNING: not run as root, can not do hugetlb test\n");
ksft_print_msg("WARNING: not run as root, can not do hugetlb test\n");
return;
}
@ -855,7 +856,7 @@ void expected_pkey_fault(int pkey)
#define do_not_expect_pkey_fault(msg) do { \
if (last_pkey_faults != pkey_faults) \
dprintf0("unexpected PKey fault: %s\n", msg); \
dprintf0("# unexpected PKey fault: %s\n", msg); \
pkey_assert(last_pkey_faults == pkey_faults); \
} while (0)
@ -1753,7 +1754,7 @@ static void run_tests_once(void)
tracing_off();
close_test_fds();
printf("test %s PASSED (iteration %d)\n", pkey_tests[test_nr].name, iteration_nr);
ksft_test_result_pass("test %s (iteration %d)\n", pkey_tests[test_nr].name, iteration_nr);
dprintf1("======================\n\n");
}
iteration_nr++;
@ -1773,27 +1774,30 @@ int main(void)
setup_handlers();
printf("has pkeys: %d\n", pkeys_supported);
ksft_print_header();
if (!pkeys_supported) {
int size = PAGE_SIZE;
int *ptr;
printf("running PKEY tests for unsupported CPU/OS\n");
ksft_set_plan(1);
ksft_print_msg("running PKEY tests for unsupported CPU/OS\n");
ptr = mmap(NULL, size, PROT_NONE, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
assert(ptr != (void *)-1);
test_mprotect_pkey_on_unsupported_cpu(ptr, 1);
exit(0);
ksft_test_result_pass("pkey on unsupported CPU/OS\n");
ksft_finished();
}
ksft_set_plan(ARRAY_SIZE(pkey_tests) * nr_iterations);
pkey_setup_shadow();
printf("startup pkey_reg: %016llx\n", read_pkey_reg());
ksft_print_msg("startup pkey_reg: %016llx\n", read_pkey_reg());
setup_hugetlbfs();
while (nr_iterations-- > 0)
run_tests_once();
printf("done (all tests OK)\n");
return 0;
ksft_finished();
}