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Re: [Qemu-devel] [PATCH 3/3] target-arm: explicitly decode SEVL instruct


From: Andreas Färber
Subject: Re: [Qemu-devel] [PATCH 3/3] target-arm: explicitly decode SEVL instruction
Date: Thu, 13 Jun 2013 15:15:29 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130510 Thunderbird/17.0.6

Am 07.06.2013 14:06, schrieb Mans Rullgard:
> The ARMv8 SEVL instruction is in the architectural hint space already
> emulated as nop.  This makes the decoding of SEVL explicit for clarity.
> 
> Signed-off-by: Mans Rullgard <address@hidden>
> ---
>  target-arm/translate.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/target-arm/translate.c b/target-arm/translate.c
> index f529257..cfd148e 100644
> --- a/target-arm/translate.c
> +++ b/target-arm/translate.c
> @@ -3501,6 +3501,7 @@ static void gen_nop_hint(DisasContext *s, int val)
>          break;
>      case 2: /* wfe */
>      case 4: /* sev */
> +    case 5: /* sevl */
>          /* TODO: Implement SEV and WFE.  May help SMP performance.  */
>      default: /* nop */
>          break;

So does SEVL need to be implemented? Then the TODO should be updated.
Otherwise moving it a line down may be clearer.

Regards,
Andreas

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