diff options
| author | Yeoreum Yun <yeoreum.yun@arm.com> | 2025-06-18 09:45:09 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2025-07-02 17:55:20 +0100 |
| commit | 2e3e356560ef54605a1c779ae8dcd7889ff2875d (patch) | |
| tree | 9338107737de25a74c23e776e8cfbaf45dd4a1f6 | |
| parent | cfafa517c9e658756511e210e7288efe21554bcf (diff) | |
kselftest/arm64/mte: Check MTE_FAR feature is supported
To run the MTE_FAR test when cpu supports MTE_FAR feature,
check the MTE_FAR feature is supported in mte test.
Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20250618084513.1761345-7-yeoreum.yun@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| -rw-r--r-- | tools/testing/selftests/arm64/mte/mte_common_util.c | 4 | ||||
| -rw-r--r-- | tools/testing/selftests/arm64/mte/mte_common_util.h | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/tools/testing/selftests/arm64/mte/mte_common_util.c b/tools/testing/selftests/arm64/mte/mte_common_util.c index 83240b980f9c..5c5680a87498 100644 --- a/tools/testing/selftests/arm64/mte/mte_common_util.c +++ b/tools/testing/selftests/arm64/mte/mte_common_util.c @@ -26,6 +26,7 @@ #define INIT_BUFFER_SIZE 256 struct mte_fault_cxt cur_mte_cxt; +bool mtefar_support; static unsigned int mte_cur_mode; static unsigned int mte_cur_pstate_tco; @@ -325,12 +326,15 @@ int mte_switch_mode(int mte_option, unsigned long incl_mask) int mte_default_setup(void) { unsigned long hwcaps2 = getauxval(AT_HWCAP2); + unsigned long hwcaps3 = getauxval(AT_HWCAP3); unsigned long en = 0; int ret; if (!(hwcaps2 & HWCAP2_MTE)) ksft_exit_skip("MTE features unavailable\n"); + mtefar_support = !!(hwcaps3 & HWCAP3_MTE_FAR); + /* Get current mte mode */ ret = prctl(PR_GET_TAGGED_ADDR_CTRL, en, 0, 0, 0); if (ret < 0) { diff --git a/tools/testing/selftests/arm64/mte/mte_common_util.h b/tools/testing/selftests/arm64/mte/mte_common_util.h index 6b109e84fa39..4e1dd959df9b 100644 --- a/tools/testing/selftests/arm64/mte/mte_common_util.h +++ b/tools/testing/selftests/arm64/mte/mte_common_util.h @@ -37,6 +37,7 @@ struct mte_fault_cxt { }; extern struct mte_fault_cxt cur_mte_cxt; +extern bool mtefar_support; /* MTE utility functions */ void mte_default_handler(int signum, siginfo_t *si, void *uc); |