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target/arm: Add gen_mte_check1

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Replace existing uses of check_data_tbi in translate-a64.c that
perform a single logical memory access.  Leave the helper blank
for now to reduce the patch size.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200626033144.790098-24-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2020-06-25 20:31:21 -07:00 • committed by Peter Maydell
parent 38659d311d
commit 0a405be2b8
5 changed files with 95 additions and 24 deletions
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8
target/arm/mte_helper.c
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@ -358,3 +358,11 @@ void HELPER(stzgm_tags)(CPUARMState *env, uint64_t ptr, uint64_t val)
memset(mem, tag_pair, tag_bytes);
}
}
/*
* Perform an MTE checked access for a single logical or atomic access.
*/
uint64_t HELPER(mte_check1)(CPUARMState *env, uint32_t desc, uint64_t ptr)
{
return ptr;
}