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target/arm: Fault on invalid TCR_ELx.TxSZ

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Without FEAT_LVA, the behaviour of programming an invalid value
is IMPLEMENTATION DEFINED.  With FEAT_LVA, programming an invalid
minimum value requires a Translation fault.

It is most self-consistent to choose to generate the fault always.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220301215958.157011-4-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2022-03-01 11:59:43 -10:00 • committed by Peter Maydell
parent 691f1ffdfc
commit ebf93ce7c0
2 changed files with 29 additions and 4 deletions
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1
target/arm/internals.h
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@ -1055,6 +1055,7 @@ typedef struct ARMVAParameters {
bool hpd : 1;
bool using16k : 1;
bool using64k : 1;
bool tsz_oob : 1; /* tsz has been clamped to legal range */
} ARMVAParameters;
ARMVAParameters aa64_va_parameters(CPUARMState *env, uint64_t va,