From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52292) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dUXR5-0005A0-Lb for qemu-devel@nongnu.org; Mon, 10 Jul 2017 08:05:11 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dUXR2-0004kf-Gv for qemu-devel@nongnu.org; Mon, 10 Jul 2017 08:05:07 -0400 Received: from mail-wr0-f171.google.com ([209.85.128.171]:34318) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dUXR2-0004kJ-Ax for qemu-devel@nongnu.org; Mon, 10 Jul 2017 08:05:04 -0400 Received: by mail-wr0-f171.google.com with SMTP id 77so135799128wrb.1 for ; Mon, 10 Jul 2017 05:05:04 -0700 (PDT) References: <1499586614-20507-1-git-send-email-cota@braap.org> <1499586614-20507-22-git-send-email-cota@braap.org> From: Paolo Bonzini Message-ID: Date: Mon, 10 Jul 2017 14:05:01 +0200 MIME-Version: 1.0 In-Reply-To: <1499586614-20507-22-git-send-email-cota@braap.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 21/22] tcg: enable per-thread TCG for softmmu List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Emilio G. Cota" , qemu-devel@nongnu.org Cc: Richard Henderson On 09/07/2017 09:50, Emilio G. Cota wrote: > User-mode is kept out of this: contention due to concurrent translation > is more commonly found in full-system mode. Out of curiosity, is it harder or you just didn't try? It would be nice if the commit message mentioned the problems (if any) in addition to the reason why you didn't do it. Having similar policies for user and softmmu emulation is much more maintainable (for an earlier example, see the unification of user mode emulation's start/end_exclusive logic with softmmu's "safe work"). Paolo