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=-17.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 D86CEC43381 for ; Thu, 4 Mar 2021 13:40:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A250A64F4D for ; Thu, 4 Mar 2021 13:40:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241392AbhCDNkF (ORCPT ); Thu, 4 Mar 2021 08:40:05 -0500 Received: from mail.kernel.org ([198.145.29.99]:53112 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241384AbhCDNjr (ORCPT ); Thu, 4 Mar 2021 08:39:47 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 7FF4C64F2C; Thu, 4 Mar 2021 13:39:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1614865147; bh=if92YC9vio4Wnb8KGrOYHJJSJjqsc9o370GPKUYZUkU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Hmsy7aJYf1pooezRgKSoYG7UiOpJ4DvBb6h3ohC4bVI3IEpgJT1OKDGPBKsu/v5EF nYNyd79i7vP6zNnD/A5Bq9F4TMnZWMBajt8XGtq0y5xk7q1xZrbJxQpQX1SUL/O3E2 0ZyITH9ie9AkxQvTvDw2E8z+eigm7fjJkEV5OyTs0jL5LQMLWZfHCJ42YyHTpFINmf C0Y6g98QkSFpFISLc8sbik2kbTKbuwMDxY+4X8x2n8lCYEJMInevvWAFwmMgaJDhI0 kN1KpXtEtWJKVJBwCtSil93ZkrFeNH/HDJ0cjlcpaeOtiRH6bSCbjD7UNSa4ZMWueU GO2ECp/5S3Hng== Date: Thu, 4 Mar 2021 13:39:01 +0000 From: Will Deacon To: Quentin Perret Cc: catalin.marinas@arm.com, maz@kernel.org, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com, android-kvm@google.com, linux-kernel@vger.kernel.org, kernel-team@android.com, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, tabba@google.com, mark.rutland@arm.com, dbrazdil@google.com, mate.toth-pal@arm.com, seanjc@google.com, robh+dt@kernel.org Subject: Re: [PATCH v3 04/32] KVM: arm64: Initialize kvm_nvhe_init_params early Message-ID: <20210304133900.GB21229@willie-the-truck> References: <20210302150002.3685113-1-qperret@google.com> <20210302150002.3685113-5-qperret@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210302150002.3685113-5-qperret@google.com> User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Mar 02, 2021 at 02:59:34PM +0000, Quentin Perret wrote: > Move the initialization of kvm_nvhe_init_params in a dedicated function > that is run early, and only once during KVM init, rather than every time > the KVM vectors are set and reset. > > This also opens the opportunity for the hypervisor to change the init > structs during boot, hence simplifying the replacement of host-provided > page-table by the one the hypervisor will create for itself. > > Signed-off-by: Quentin Perret > --- > arch/arm64/kvm/arm.c | 30 ++++++++++++++++++------------ > 1 file changed, 18 insertions(+), 12 deletions(-) Acked-by: Will Deacon Will 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=-15.3 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 C00CFC433E0 for ; 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Thu, 4 Mar 2021 08:39:12 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 78C354B43F for ; Thu, 4 Mar 2021 08:39:11 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id iyC3Qc+zPS0Z for ; Thu, 4 Mar 2021 08:39:09 -0500 (EST) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 4A2DE4B3CC for ; Thu, 4 Mar 2021 08:39:09 -0500 (EST) Received: by mail.kernel.org (Postfix) with ESMTPSA id 7FF4C64F2C; Thu, 4 Mar 2021 13:39:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1614865147; bh=if92YC9vio4Wnb8KGrOYHJJSJjqsc9o370GPKUYZUkU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Hmsy7aJYf1pooezRgKSoYG7UiOpJ4DvBb6h3ohC4bVI3IEpgJT1OKDGPBKsu/v5EF nYNyd79i7vP6zNnD/A5Bq9F4TMnZWMBajt8XGtq0y5xk7q1xZrbJxQpQX1SUL/O3E2 0ZyITH9ie9AkxQvTvDw2E8z+eigm7fjJkEV5OyTs0jL5LQMLWZfHCJ42YyHTpFINmf C0Y6g98QkSFpFISLc8sbik2kbTKbuwMDxY+4X8x2n8lCYEJMInevvWAFwmMgaJDhI0 kN1KpXtEtWJKVJBwCtSil93ZkrFeNH/HDJ0cjlcpaeOtiRH6bSCbjD7UNSa4ZMWueU GO2ECp/5S3Hng== Date: Thu, 4 Mar 2021 13:39:01 +0000 From: Will Deacon To: Quentin Perret Subject: Re: [PATCH v3 04/32] KVM: arm64: Initialize kvm_nvhe_init_params early Message-ID: <20210304133900.GB21229@willie-the-truck> References: <20210302150002.3685113-1-qperret@google.com> <20210302150002.3685113-5-qperret@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210302150002.3685113-5-qperret@google.com> User-Agent: Mutt/1.10.1 (2018-07-13) Cc: android-kvm@google.com, catalin.marinas@arm.com, mate.toth-pal@arm.com, seanjc@google.com, tabba@google.com, linux-kernel@vger.kernel.org, robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org, maz@kernel.org, kernel-team@android.com, kvmarm@lists.cs.columbia.edu X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu On Tue, Mar 02, 2021 at 02:59:34PM +0000, Quentin Perret wrote: > Move the initialization of kvm_nvhe_init_params in a dedicated function > that is run early, and only once during KVM init, rather than every time > the KVM vectors are set and reset. > > This also opens the opportunity for the hypervisor to change the init > structs during boot, hence simplifying the replacement of host-provided > page-table by the one the hypervisor will create for itself. > > Signed-off-by: Quentin Perret > --- > arch/arm64/kvm/arm.c | 30 ++++++++++++++++++------------ > 1 file changed, 18 insertions(+), 12 deletions(-) Acked-by: Will Deacon Will _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm 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=-15.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 2B9B0C433DB for ; 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h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Hmsy7aJYf1pooezRgKSoYG7UiOpJ4DvBb6h3ohC4bVI3IEpgJT1OKDGPBKsu/v5EF nYNyd79i7vP6zNnD/A5Bq9F4TMnZWMBajt8XGtq0y5xk7q1xZrbJxQpQX1SUL/O3E2 0ZyITH9ie9AkxQvTvDw2E8z+eigm7fjJkEV5OyTs0jL5LQMLWZfHCJ42YyHTpFINmf C0Y6g98QkSFpFISLc8sbik2kbTKbuwMDxY+4X8x2n8lCYEJMInevvWAFwmMgaJDhI0 kN1KpXtEtWJKVJBwCtSil93ZkrFeNH/HDJ0cjlcpaeOtiRH6bSCbjD7UNSa4ZMWueU GO2ECp/5S3Hng== Date: Thu, 4 Mar 2021 13:39:01 +0000 From: Will Deacon To: Quentin Perret Cc: catalin.marinas@arm.com, maz@kernel.org, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com, android-kvm@google.com, linux-kernel@vger.kernel.org, kernel-team@android.com, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, tabba@google.com, mark.rutland@arm.com, dbrazdil@google.com, mate.toth-pal@arm.com, seanjc@google.com, robh+dt@kernel.org Subject: Re: [PATCH v3 04/32] KVM: arm64: Initialize kvm_nvhe_init_params early Message-ID: <20210304133900.GB21229@willie-the-truck> References: <20210302150002.3685113-1-qperret@google.com> <20210302150002.3685113-5-qperret@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210302150002.3685113-5-qperret@google.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Mar 02, 2021 at 02:59:34PM +0000, Quentin Perret wrote: > Move the initialization of kvm_nvhe_init_params in a dedicated function > that is run early, and only once during KVM init, rather than every time > the KVM vectors are set and reset. > > This also opens the opportunity for the hypervisor to change the init > structs during boot, hence simplifying the replacement of host-provided > page-table by the one the hypervisor will create for itself. > > Signed-off-by: Quentin Perret > --- > arch/arm64/kvm/arm.c | 30 ++++++++++++++++++------------ > 1 file changed, 18 insertions(+), 12 deletions(-) Acked-by: Will Deacon Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel