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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id CDEF6C7EE23 for ; Tue, 30 May 2023 12:27:19 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1q3yR2-00007g-5h; Tue, 30 May 2023 08:26:44 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1q3yR0-00006d-Oj for qemu-devel@nongnu.org; Tue, 30 May 2023 08:26:42 -0400 Received: from mail-ed1-x530.google.com ([2a00:1450:4864:20::530]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1q3yQz-0000JQ-77 for qemu-devel@nongnu.org; Tue, 30 May 2023 08:26:42 -0400 Received: by mail-ed1-x530.google.com with SMTP id 4fb4d7f45d1cf-5147aee9d7cso6179419a12.3 for ; Tue, 30 May 2023 05:26:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1685449599; x=1688041599; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=5eWQJL+mF2LJ72zBTYOzXce0OnrQOtwB9QtQWnw1fOc=; b=HOoTRS6KLBjeXHXp7wtlOKidVVqEpMTfSExe0kjzlEd2W3r0YYRBvd2uFyU9PQZI55 Ingt6KFt+oAbU/y0uzqhukK4LwQOUN9d1g+10cHB9jrNgur1qigCBWHVil2tj4tL8rpr +odHGUAi9xeQFHbfZKIv0spWpvmm16TDLqXnWTLroZvkOvd9PaCVphq2CyZFF8pv2njw nkt4E44ZwaZ6c1cKqoyftqM+bKr3CBRr2ILbeV7PiQvcjUOLmNr4qVy7qw7P9Zjtqisi 19SkLKZILmS5l2y4JtzUkorg9pwhIFVoT6fxU5WeVNdoZ6eDfi+VcPBmz8dtfZmGZqaC gTIA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685449599; x=1688041599; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=5eWQJL+mF2LJ72zBTYOzXce0OnrQOtwB9QtQWnw1fOc=; b=Ijt5nC2BAJmOyGHbb5zLvqN+svUECVnGvzJ4zJ2to5oypvsW6aYdxesFioEfdUPNHq kMT51FqL+4V4cD8tNDtBDmx9mfEG9b7kjswCGvYCM9Ey4Cpf0u9nrCkQlF3M5J23F/8p FXJfoCSCCyeNdfWxYqHg5QD1TPVunhq63mO4+Qr5I2B01PZSEnq1o1xdxmOVb5onjUbj 4NGE/iiwemQ17DYkTGAtCFFfzpEiuQCneXIRHrxRYoJB/iQAKOVHewu/CLu/yxlNM+yG fhcWktxUJ95skS382MFZJzmOWvH6ajABmB9JxepJD5KJWkvke7lfIjmlgi1MMJxJ0ENl OBQg== X-Gm-Message-State: AC+VfDw+AoKMmxbSERhcto+FEBsyAJ2LfwPIMMFNzh3ayhpm9ru9Tb7e xCJk7wSlng152CLxvvJYyUbtmQzCyWMfQCKWGRZpwA== X-Google-Smtp-Source: ACHHUZ7jyN7iBwhkrKsliFCd5GFUq/vZHHmDXSnMSfNoG69+8t90IuglY9vyt4eiPDMSgebLy8dqKK0r/nP6STX6Uv4= X-Received: by 2002:a05:6402:b0a:b0:514:98c8:9d7c with SMTP id bm10-20020a0564020b0a00b0051498c89d7cmr1475963edb.4.1685449599300; Tue, 30 May 2023 05:26:39 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Peter Maydell Date: Tue, 30 May 2023 13:26:28 +0100 Message-ID: Subject: Re: [PATCH v3 1/2] target/arm: allow DC CVA[D]P in user mode emulation To: Zhuojia Shen Cc: qemu-devel@nongnu.org, Richard Henderson , qemu-arm@nongnu.org Content-Type: text/plain; charset="UTF-8" Received-SPF: pass client-ip=2a00:1450:4864:20::530; envelope-from=peter.maydell@linaro.org; helo=mail-ed1-x530.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Fri, 19 May 2023 at 22:55, Zhuojia Shen wrote: > > DC CVAP and DC CVADP instructions can be executed in EL0 on Linux, > either directly when SCTLR_EL1.UCI == 1 or emulated by the kernel (see > user_cache_maint_handler() in arch/arm64/kernel/traps.c). > > This patch enables execution of the two instructions in user mode > emulation. > > Signed-off-by: Zhuojia Shen Reviewed-by: Peter Maydell thanks -- PMM