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[PULL,07/20] target-arm: Add Hyp mode checks to bad_mode_switch()

Message ID 1456500025-28761-8-git-send-email-peter.maydell@linaro.org (mailing list archive)
State New, archived
Headers show

Commit Message

Peter Maydell Feb. 26, 2016, 3:20 p.m. UTC 
We don't actually support Hyp mode yet, but add the correct
checks for it to the bad_mode_switch() function for completeness.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Sergey Fedorov <serge.fdrv@gmail.com>
Message-id: 1455556977-3644-8-git-send-email-peter.maydell@linaro.org
---
 target-arm/helper.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox

Patch

diff --git a/target-arm/helper.c b/target-arm/helper.c
index 57cc879..c43d66f 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -5218,6 +5218,9 @@  static int bad_mode_switch(CPUARMState *env, int mode)
          * allows FIQ mode to be Secure-only. (In v8 this doesn't exist.)
          */
         return 0;
+    case ARM_CPU_MODE_HYP:
+        return !arm_feature(env, ARM_FEATURE_EL2)
+            || arm_current_el(env) < 2 || arm_is_secure(env);
     case ARM_CPU_MODE_MON:
         return !arm_is_secure(env);
     default: