diff options
| author | Mark Brown <broonie@kernel.org> | 2025-06-09 16:25:33 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2025-07-03 11:04:01 +0100 |
| commit | 9e8ebfe677f9101bbfe1f75d548a5aec581e8213 (patch) | |
| tree | 1568682e986fe5c744005a96d57b37e6e714b57b /tools | |
| parent | 94ab150010f430a36c72e2fe5b7da44a625a6ad5 (diff) | |
kselftest/arm64: Specify SVE data when testing VL set in sve-ptrace
Since f916dd32a943 ("arm64/fpsimd: ptrace: Mandate SVE payload for
streaming-mode state") we reject attempts to write to the streaming mode
regset even if there is no register data supplied, causing the tests for
setting vector lengths and setting SVE_VL_INHERIT in sve-ptrace to
spuriously fail. Set the flag to avoid the issue, we still support not
supplying register data.
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20250609-kselftest-arm64-ssve-fixups-v2-3-998fcfa6f240@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/arm64/fp/sve-ptrace.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/testing/selftests/arm64/fp/sve-ptrace.c b/tools/testing/selftests/arm64/fp/sve-ptrace.c index 7e259907805b..7f9b6a61d369 100644 --- a/tools/testing/selftests/arm64/fp/sve-ptrace.c +++ b/tools/testing/selftests/arm64/fp/sve-ptrace.c @@ -170,7 +170,7 @@ static void ptrace_set_get_inherit(pid_t child, const struct vec_type *type) memset(&sve, 0, sizeof(sve)); sve.size = sizeof(sve); sve.vl = sve_vl_from_vq(SVE_VQ_MIN); - sve.flags = SVE_PT_VL_INHERIT; + sve.flags = SVE_PT_VL_INHERIT | SVE_PT_REGS_SVE; ret = set_sve(child, type, &sve); if (ret != 0) { ksft_test_result_fail("Failed to set %s SVE_PT_VL_INHERIT\n", @@ -235,6 +235,7 @@ static void ptrace_set_get_vl(pid_t child, const struct vec_type *type, /* Set the VL by doing a set with no register payload */ memset(&sve, 0, sizeof(sve)); sve.size = sizeof(sve); + sve.flags = SVE_PT_REGS_SVE; sve.vl = vl; ret = set_sve(child, type, &sve); if (ret != 0) { |