The linux kernel detects and enables this bit. Once trapped,
EC_SYSTEMREGISTERTRAP is treated like EC_UNCATEGORIZED, so
no changes required within linux-user/aarch64/cpu_loop.c.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20230831232441.66020-6-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
SCTLR_EnDA | SCTLR_EnDB);
/* Trap on btype=3 for PACIxSP. */
env->cp15.sctlr_el[1] |= SCTLR_BT0;
+ /* Trap on implementation defined registers. */
+ if (cpu_isar_feature(aa64_tidcp1, cpu)) {
+ env->cp15.sctlr_el[1] |= SCTLR_TIDCP;
+ }
/* and to the FP/Neon instructions */
env->cp15.cpacr_el1 = FIELD_DP64(env->cp15.cpacr_el1,
CPACR_EL1, FPEN, 3);