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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 ABA47C433DF for ; Mon, 6 Jul 2020 17:24:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 94F1920724 for ; Mon, 6 Jul 2020 17:24:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729633AbgGFRYL (ORCPT ); Mon, 6 Jul 2020 13:24:11 -0400 Received: from mail.kernel.org ([198.145.29.99]:56570 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729569AbgGFRYL (ORCPT ); Mon, 6 Jul 2020 13:24:11 -0400 Received: from gaia (unknown [95.146.230.158]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6BA2A2070C; Mon, 6 Jul 2020 17:24:08 +0000 (UTC) Date: Mon, 6 Jul 2020 18:24:06 +0100 From: Catalin Marinas To: Marc Zyngier Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, Andre Przywara , Christoffer Dall , Dave Martin , Jintack Lim , Alexandru Elisei , George Cherian , "Zengtao (B)" , Andrew Scull , Will Deacon , Mark Rutland , James Morse , Julien Thierry , Suzuki K Poulose , kernel-team@android.com Subject: Re: [PATCH v3 02/17] arm64: Detect the ARMv8.4 TTL feature Message-ID: <20200706172405.GI28170@gaia> References: <20200706125425.1671020-1-maz@kernel.org> <20200706125425.1671020-3-maz@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200706125425.1671020-3-maz@kernel.org> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Mon, Jul 06, 2020 at 01:54:10PM +0100, Marc Zyngier wrote: > In order to reduce the cost of TLB invalidation, the ARMv8.4 TTL > feature allows TLBs to be issued with a level allowing for quicker > invalidation. > > Let's detect the feature for now. Further patches will implement > its actual usage. > > Reviewed-by : Suzuki K Polose > Signed-off-by: Marc Zyngier It looks like I had a reviewed-by in the other series [1]. Feel free to add it here as well: Reviewed-by: Catalin Marinas [1] https://lore.kernel.org/linux-arm-kernel/20200625080314.230-1-yezhenyu2@huawei.com/