From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=0.5 required=3.0 tests=DATE_IN_PAST_03_06, DKIM_INVALID,DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EFFB0C43603 for ; Fri, 6 Dec 2019 14:43:17 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BE3F220706 for ; Fri, 6 Dec 2019 14:43:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="L5jOzS15" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BE3F220706 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:38830 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1idEpA-0004L6-Cw for qemu-devel@archiver.kernel.org; Fri, 06 Dec 2019 09:43:16 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:43922) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1idEQv-000497-SG for qemu-devel@nongnu.org; Fri, 06 Dec 2019 09:18:14 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1idEQu-00056u-SM for qemu-devel@nongnu.org; Fri, 06 Dec 2019 09:18:13 -0500 Received: from mail-ot1-x344.google.com ([2607:f8b0:4864:20::344]:42302) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1idEQu-00055c-Mc for qemu-devel@nongnu.org; Fri, 06 Dec 2019 09:18:12 -0500 Received: by mail-ot1-x344.google.com with SMTP id 66so5893020otd.9 for ; Fri, 06 Dec 2019 06:18:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=O5nsFOtjimTarn9GS+btDv87kUC1vCLmzpNDta2HK4s=; b=L5jOzS155bNCJ4UXbeMy8WfpGFnhylLmy6JTayxrFtoocFrgo2Aw2oRJ0YZKjnn0VJ xeiluYE6eu0Mv5RqFmD/QLeJll5t92+PRB6GFtg3BkX5T8lEjjabwqm4c/ndwt/6kvdt ZmKCfFPgkxQga/F5ExQsqnaobyvDIOUsKBnLYyIHrw2nAfZsaIU0/mqQNaEtKJJ+SE/J pgDUhrpbYxMWfqMx4V4mVn/Su15wtVPPM6S47Gb7VBZJBU0TiCXT5RCB+57+jYoz/Ttp 7j9PmUFQrKXEa1ncKT59cbS5ETBu1HGkIjurDbwzdpb1BdKB9FzKBW00a1zzL7ur9gGE Vghg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=O5nsFOtjimTarn9GS+btDv87kUC1vCLmzpNDta2HK4s=; b=IC3V5SZbadM1bHCcEpOUwtRB18spW2Cu+Kpigw4I8aWP6IetchiloB99TBXeifdibj jm+ZQESQbvswlWQ0IdEZ9jZQS5B0ms4k9Id3LGulXZKuIRk8sc7WOpU6J3dDpRl7EgXN K4GfcC3gMgoV/Jj4vu1XCD5/NhD4GYSkJOUpWc8+8SHLD96CyRbgYpTG2ofCLvffmYtU vGsPTe/rjUs3Mc52KXw8D5JAFtAaj7TwqcgM3x3ADIzttzSCk5BzB3RWLaDc8RAiTUxQ jnDH+K8ZS3QGL8eDBFrEt1FpEm3j8fV6nieF9pz4crQDgffNCOl9gKRaSxXUEXdq5WMM 8LAg== X-Gm-Message-State: APjAAAV1csxDItmrGoa9N9EFfNdjanRRn9dwOXabqrzO1Yf/bdr55DQo YyLzQZBakFCa34OqkI7J/DmF6gcd41CrjBAxDAMNxAQZ X-Google-Smtp-Source: APXvYqx0mgH1eZdXMJbTSz8/uk5lM8qaVRisD8J7Oy2Nvm8QuC/mlP7MyfC9Gfh/qiuuQgPFvQ56xF0sGkG+97F67Cs= X-Received: by 2002:a9d:12d2:: with SMTP id g76mr10680515otg.232.1575625923512; Fri, 06 Dec 2019 01:52:03 -0800 (PST) MIME-Version: 1.0 References: <20191011134744.2477-1-richard.henderson@linaro.org> <20191011134744.2477-21-richard.henderson@linaro.org> In-Reply-To: From: Peter Maydell Date: Fri, 6 Dec 2019 09:51:52 +0000 Message-ID: Subject: Re: [PATCH v5 20/22] target/arm: Create tagged ram when MTE is enabled To: Richard Henderson Content-Type: text/plain; charset="UTF-8" X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::344 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-arm , QEMU Developers Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Thu, 5 Dec 2019 at 19:24, Richard Henderson wrote: > > On 12/5/19 10:40 AM, Peter Maydell wrote: > > Are there really separate S and NS tag RAMs? > > Implementation defined, I believe. As with everything about tag storage, it > would seem. But since there are separate S and NS normal RAMS, I create > separate tag spaces to match. Yeah, it seems like the obvious design. I just couldn't find anything in the spec that said it was possible. I'm probably missing the relevant paragraph. -- PMM