target/arm: Add AIE to ARMVAParameters

Allow the bit to be set in TCR2;
extract the bit in aa64_va_parameters.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20251014195017.421681-4-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

target/arm/helper.c

diff --git a/target/arm/helper.c b/target/arm/helper.c
index e4d1651..8c0b888 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -6098,6 +6098,9 @@
     if (cpu_isar_feature(aa64_s1pie, cpu)) {
         valid_mask |= TCR2_PIE;
     }
+    if (cpu_isar_feature(aa64_aie, cpu)) {
+        valid_mask |= TCR2_AIE;
+    }
     value &= valid_mask;
     raw_write(env, ri, value);
 }
@@ -6111,7 +6114,10 @@
     if (cpu_isar_feature(aa64_s1pie, cpu)) {
         valid_mask |= TCR2_PIE;
     }
-    if (cpu_isar_feature(aa64_mec, env_archcpu(env))) {
+    if (cpu_isar_feature(aa64_aie, cpu)) {
+        valid_mask |= TCR2_AIE;
+    }
+    if (cpu_isar_feature(aa64_mec, cpu)) {
         valid_mask |= TCR2_AMEC0 | TCR2_AMEC1;
     }
     value &= valid_mask;
@@ -9666,6 +9672,7 @@
 {
     uint64_t tcr = regime_tcr(env, mmu_idx);
     bool epd, hpd, tsz_oob, ds, ha, hd, pie = false;
+    bool aie = false;
     int select, tsz, tbi, max_tsz, min_tsz, ps, sh;
     ARMGranuleSize gran;
     ARMCPU *cpu = env_archcpu(env);
@@ -9688,10 +9695,12 @@
             if (r_el == 3) {
                 pie = (extract64(tcr, 35, 1)
                        && cpu_isar_feature(aa64_s1pie, cpu));
-            } else {
-                pie = ((env->cp15.tcr2_el[2] & TCR2_PIE)
-                       && (!arm_feature(env, ARM_FEATURE_EL3)
-                           || (env->cp15.scr_el3 & SCR_TCR2EN)));
+                aie = (extract64(tcr, 37, 1)
+                       && cpu_isar_feature(aa64_aie, cpu));
+            } else if (!arm_feature(env, ARM_FEATURE_EL3)
+                       || (env->cp15.scr_el3 & SCR_TCR2EN)) {
+                pie = env->cp15.tcr2_el[2] & TCR2_PIE;
+                aie = env->cp15.tcr2_el[2] & TCR2_AIE;
             }
         }
         epd = false;
@@ -9733,10 +9742,12 @@
             epd = true;
         }
 
-        pie = ((env->cp15.tcr2_el[r_el] & TCR2_PIE)
-               && (!arm_feature(env, ARM_FEATURE_EL3)
-                   || (env->cp15.scr_el3 & SCR_TCR2EN))
-               && (r_el == 2 || (arm_hcrx_el2_eff(env) & HCRX_TCR2EN)));
+        if ((!arm_feature(env, ARM_FEATURE_EL3)
+             || (env->cp15.scr_el3 & SCR_TCR2EN))
+            && (r_el == 2 || (arm_hcrx_el2_eff(env) & HCRX_TCR2EN))) {
+            pie = env->cp15.tcr2_el[r_el] & TCR2_PIE;
+            aie = env->cp15.tcr2_el[r_el] & TCR2_AIE;
+        }
     }
     hpd |= pie;
 
@@ -9818,6 +9829,7 @@
         .hd = ha && hd,
         .gran = gran,
         .pie = pie,
+        .aie = aie,
     };
 }
 

target/arm/internals.h

diff --git a/target/arm/internals.h b/target/arm/internals.h
index f539bbe..a65386a 100644
--- a/target/arm/internals.h
+++ b/target/arm/internals.h
@@ -1391,6 +1391,7 @@
     bool hd         : 1;
     ARMGranuleSize gran : 2;
     bool pie        : 1;
+    bool aie        : 1;
 } ARMVAParameters;
 
 /**