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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3CAE2C433F5 for ; Mon, 17 Jan 2022 15:51:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240659AbiAQPv4 (ORCPT ); Mon, 17 Jan 2022 10:51:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57282 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237414AbiAQPv4 (ORCPT ); Mon, 17 Jan 2022 10:51:56 -0500 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [IPv6:2001:4d48:ad52:32c8:5054:ff:fe00:142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C293BC061574 for ; Mon, 17 Jan 2022 07:51:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=ijFecGAxiZjgRedLXwFR1clSAj6Wz+yJdh4E5o7HuoE=; b=1FTGT8UpCjgQ7BPui+BQjp6SvJ PQ9ZdgVrevLOCJaNhvwLBv2OajAFdBOywlaLaF71u37NEKL2EPtUuPy2GtcvBpeehA6Y605cXsDow 4mGHXndr1C08bjeBTnXkDeRD+xweGJx0xX/yMZCiLAzUQomHNwr+xT52si9PdXJGqr5NRWyzUmQmV hpBl1IswT1UlO2TrEKm2c5e6js4h3SpvJa197ug3bzoZPDRARi7oG1cjty9YmyvDiMVq6NOzpauoT pvol1L3mX24FgkKPpXVqNFh1bfz0CxbUP4JWstKDJXl22Vs3pIRKCLwx70GOpN7a2XHGfz7F/7fQW rE8s5fKA==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:56732) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1n9UIQ-0002oN-3d; Mon, 17 Jan 2022 15:51:50 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1n9UIO-0003RX-3U; Mon, 17 Jan 2022 15:51:48 +0000 Date: Mon, 17 Jan 2022 15:51:48 +0000 From: "Russell King (Oracle)" To: Marc Zyngier Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, Andre Przywara , Christoffer Dall , Jintack Lim , Haibo Xu , Ganapatrao Kulkarni , James Morse , Suzuki K Poulose , Alexandru Elisei , kernel-team@android.com Subject: Re: [PATCH v5 05/69] KVM: arm64: Allow preservation of the S2 SW bits Message-ID: References: <20211129200150.351436-1-maz@kernel.org> <20211129200150.351436-6-maz@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211129200150.351436-6-maz@kernel.org> Sender: Russell King (Oracle) Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Mon, Nov 29, 2021 at 08:00:46PM +0000, Marc Zyngier wrote: > The S2 page table code has a limited use the SW bits, but we are about I think the opening clause needs to be rewritten. > to need them to encode some guest Stage-2 information (its mapping size > in the form of the TTL encoding). > > Propagate the SW bits specified by the caller, and store them into > the corresponding entry. > > Signed-off-by: Marc Zyngier Reviewed-by: Russell King (Oracle) -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!