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selftests/arm64: Log errors in verify_mte_pointer_validity()
When we detect a problem in verify_mte_pointer_validity() while checking tags we don't log what the problem was which makes debugging harder. Add some diagnostics. Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/20220510164520.768783-2-broonie@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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1 changed files with 9 additions and 3 deletions
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@ -25,8 +25,11 @@ static int verify_mte_pointer_validity(char *ptr, int mode)
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/* Check the validity of the tagged pointer */
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memset((void *)ptr, '1', BUFFER_SIZE);
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mte_wait_after_trig();
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if (cur_mte_cxt.fault_valid)
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if (cur_mte_cxt.fault_valid) {
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ksft_print_msg("Unexpected fault recorded for %p-%p in mode %x\n",
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ptr, ptr + BUFFER_SIZE, mode);
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return KSFT_FAIL;
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}
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/* Proceed further for nonzero tags */
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if (!MT_FETCH_TAG((uintptr_t)ptr))
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return KSFT_PASS;
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@ -34,10 +37,13 @@ static int verify_mte_pointer_validity(char *ptr, int mode)
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/* Check the validity outside the range */
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ptr[BUFFER_SIZE] = '2';
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mte_wait_after_trig();
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if (!cur_mte_cxt.fault_valid)
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if (!cur_mte_cxt.fault_valid) {
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ksft_print_msg("No valid fault recorded for %p in mode %x\n",
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ptr, mode);
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return KSFT_FAIL;
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else
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} else {
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return KSFT_PASS;
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}
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}
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static int check_single_included_tags(int mem_type, int mode)
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