From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:37180) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TLzbb-0005WK-Hx for qemu-devel@nongnu.org; Wed, 10 Oct 2012 12:58:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TLzbV-0002wS-1J for qemu-devel@nongnu.org; Wed, 10 Oct 2012 12:57:59 -0400 Received: from mail-pb0-f45.google.com ([209.85.160.45]:34179) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TLzbU-0002wM-RJ for qemu-devel@nongnu.org; Wed, 10 Oct 2012 12:57:52 -0400 Received: by mail-pb0-f45.google.com with SMTP id rp2so909216pbb.4 for ; Wed, 10 Oct 2012 09:57:52 -0700 (PDT) Sender: Richard Henderson Message-ID: <5075A90E.3030107@twiddle.net> Date: Wed, 10 Oct 2012 09:57:50 -0700 From: Richard Henderson MIME-Version: 1.0 References: <1349812584-19551-1-git-send-email-aurelien@aurel32.net> <1349812584-19551-13-git-send-email-aurelien@aurel32.net> In-Reply-To: <1349812584-19551-13-git-send-email-aurelien@aurel32.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH v2 12/26] tcg: forbid ld/st function to modify globals List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Aurelien Jarno Cc: qemu-devel@nongnu.org On 10/09/2012 12:56 PM, Aurelien Jarno wrote: > Mapping a memory address using a global and accessing it through > ld/st operations is currently broken. As it doesn't make any sense > to do that performance wise, let's forbid that. > > Update the TCG documentation, and remove partial support for that. > > Signed-off-by: Aurelien Jarno Reviewed-by: Richard Henderson r~