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Re: [Qemu-arm] [PATCH 07/11] target-arm: Add Hyp mode checks to bad_mode


From: Sergey Fedorov
Subject: Re: [Qemu-arm] [PATCH 07/11] target-arm: Add Hyp mode checks to bad_mode_switch()
Date: Thu, 18 Feb 2016 20:43:31 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1

On 15.02.2016 20:22, Peter Maydell wrote:
> 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 <address@hidden>

Reviewed-by: Sergey Fedorov <address@hidden>

> ---
>  target-arm/helper.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/target-arm/helper.c b/target-arm/helper.c
> index 37b5439..4074b97 100644
> --- a/target-arm/helper.c
> +++ b/target-arm/helper.c
> @@ -5184,6 +5184,9 @@ 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:




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