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target/arm: Fix exception case in allocation_tag_mem_probe

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If page in 'ptr_access' is inaccessible and probe is 'true'
allocation_tag_mem_probe should not throw an exception, but currently it
does, so fix it.

Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240628050850.536447-5-gustavo.romero@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240705084047.857176-34-alex.bennee@linaro.org>
This commit is contained in:
Gustavo Romero 2024-07-05 09:40:40 +01:00 committed by Alex Bennée
parent 60f4ce8e2c
commit 41bfb6704e
1 changed files with 3 additions and 0 deletions
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3
target/arm/tcg/mte_helper.c
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@ -96,6 +96,9 @@ static uint8_t *allocation_tag_mem_probe(CPUARMState *env, int ptr_mmu_idx,
assert(!(probe && ra));
if (!(flags & (ptr_access == MMU_DATA_STORE ? PAGE_WRITE_ORG : PAGE_READ))) {
if (probe) {
return NULL;
}
cpu_loop_exit_sigsegv(env_cpu(env), ptr, ptr_access,
!(flags & PAGE_VALID), ra);
}