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target/arm: Update arm_mmu_idx_el for PAN 

Examine the PAN bit for EL1, EL2, and Secure EL1 to
determine if it applies.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-13-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2020-02-08 12:58:08 +00:00 committed by Peter Maydell
parent 220f508f49
commit 66412260cc
1 changed files with 9 additions and 0 deletions
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9
target/arm/helper.c
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@ -11895,13 +11895,22 @@ ARMMMUIdx arm_mmu_idx_el(CPUARMState *env, int el)
return ARMMMUIdx_E10_0;
case 1:
if (arm_is_secure_below_el3(env)) {
if (env->pstate & PSTATE_PAN) {
return ARMMMUIdx_SE10_1_PAN;
}
return ARMMMUIdx_SE10_1;
}
if (env->pstate & PSTATE_PAN) {
return ARMMMUIdx_E10_1_PAN;
}
return ARMMMUIdx_E10_1;
case 2:
/* TODO: ARMv8.4-SecEL2 */
/* Note that TGE does not apply at EL2. */
if ((env->cp15.hcr_el2 & HCR_E2H) && arm_el_is_aa64(env, 2)) {
if (env->pstate & PSTATE_PAN) {
return ARMMMUIdx_E20_2_PAN;
}
return ARMMMUIdx_E20_2;
}
return ARMMMUIdx_E2;