For ARMv8.1, op1 == 5 is reserved for EL2 aliases of
EL1 and EL0 registers.

Reviewed-by: Peter Maydell <peter.mayd...@linaro.org>
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
 target/arm/helper.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/target/arm/helper.c b/target/arm/helper.c
index 992ab2a15f..2aa04d0613 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -7586,13 +7586,10 @@ void define_one_arm_cp_reg_with_opaque(ARMCPU *cpu,
             mask = PL0_RW;
             break;
         case 4:
+        case 5:
             /* min_EL EL2 */
             mask = PL2_RW;
             break;
-        case 5:
-            /* unallocated encoding, so not possible */
-            assert(false);
-            break;
         case 6:
             /* min_EL EL3 */
             mask = PL3_RW;
-- 
2.20.1


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