[v4,12/20] target/arm: Update arm_mmu_idx_el for PAN

Message ID 20200208125816.14954-13-richard.henderson@linaro.org
State Superseded
Headers show
Series
  • target/arm: Implement PAN, ATS1E1, UAO
Related show

Commit Message

Richard Henderson Feb. 8, 2020, 12:58 p.m.
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>

---
 target/arm/helper.c | 9 +++++++++
 1 file changed, 9 insertions(+)

-- 
2.20.1

Patch

diff --git a/target/arm/helper.c b/target/arm/helper.c
index 058fb23959..f6a600aa00 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -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;