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target/arm: Set ARMMMUFaultInfo.level in user-only arm_cpu_tlb_fill 

Pretend the fault always happens at page table level 3.

Failure to set this leaves level = 0, which is impossible for
ARMFault_Permission, and produces an invalid syndrome, which
reaches g_assert_not_reached in cpu_loop.

Fixes: 8db94ab4e5 ("linux-user/aarch64: Pass syndrome to EXC_*_ABORT")
Reported-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210320000606.1788699-1-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2021-03-19 18:06:06 -06:00 committed by Peter Maydell
parent 75ce72b785
commit dad90de78e
1 changed files with 1 additions and 0 deletions
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target/arm/tlb_helper.c
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@ -163,6 +163,7 @@ bool arm_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
} else {
fi.type = ARMFault_Translation;
}
fi.level = 3;
/* now we have a real cpu fault */
cpu_restore_state(cs, retaddr, true);