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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 C64BDC433FE for ; Mon, 14 Nov 2022 19:31:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=PkjZ6ju2kBHdFLGtKN21Jbb/CGpu9/ZSEBBLfQziAok=; b=XZe8xfhZ303eO/ Ec8Xo/GunTD1SUBLRazcv9dXtMSFJCFfSlv36ZJ1LX2iN1FOY8RA6T56fokS0ellduc+ClVYbiuUG i5gB+YJOt/covEmTEmUTlPf89xGP2/0TUPYBrz6lP8xitsgTW+Y1hzvIhXTZ+DEjC86xVHqJHSvlR M1+V86vvA4ncrolvrW83tm9km/tgsz+ICIRUeHKW6yab75j1uk3IFBaRjtw0H+1cSI/bN8nIdMaeF HjCuOWR6NDtqxH/lleF9YRVjvNnA7SGWji2NaspN0Y0cNLlqE/h9fcFTuzoq02eCgf31A7yos/uhB XoZ5TQO9TkTfW/1o3luQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oufAE-0049PI-Si; Mon, 14 Nov 2022 19:30:39 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oufAC-0049OJ-E4 for linux-arm-kernel@lists.infradead.org; Mon, 14 Nov 2022 19:30:37 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 8A9696136F; Mon, 14 Nov 2022 19:30:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 626EAC43470; Mon, 14 Nov 2022 19:30:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1668454235; bh=llpXHAF5OWOiK2xL3RLSoCIqLyphKu1AInLE8Ka6w2I=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Rhq6nrc3C4VKkHptcd+G0RQtCpi59Klo/ayDVDPn579Q60QJ+4QqrBtebMdndZaWM 9Sp0UjXcF+SHwpZbqdQFP3aqLzi5QR5SV+fR0BXOuZ5CFAoK/x0x1NWguBnyVYUD9M CFs4Q5JJ8p0tQeJjSn3U9MeuHhjh5ezdmGuR/Rho7lVMGos6NKefqFVAKkjjw7Rw2h jGpoCpHk25l0OGpDmoOiv6lKU9yvB75jS74r4jqVUDQ7ee9Xsjhy3VsOYLhvbw58j6 PxbEEMYvpD43VZYlDUNH+xP8yBFUJB0YIiy60JK4pg8MqYV+7bqf6ev8MydM+RzcKp nqXu+Im45Tefw== Date: Mon, 14 Nov 2022 19:30:28 +0000 From: Will Deacon To: Marc Zyngier Cc: kvmarm@lists.linux.dev, Vincent Donnefort , James Morse , Mark Rutland , Alexandru Elisei , kernel-team@android.com, Quentin Perret , Philippe =?iso-8859-1?Q?Mathieu-Daud=E9?= , Suzuki K Poulose , Fuad Tabba , kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Oliver Upton , Sean Christopherson , Catalin Marinas , Chao Peng Subject: Re: [PATCH v6 00/26] KVM: arm64: Introduce pKVM hyp VM and vCPU state at EL2 Message-ID: <20221114193027.GA31791@willie-the-truck> References: <20221110190259.26861-1-will@kernel.org> <166819337067.3836113.13147674500457473286.b4-ty@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <166819337067.3836113.13147674500457473286.b4-ty@kernel.org> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221114_113036_529797_D796D365 X-CRM114-Status: GOOD ( 19.89 ) 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 Fri, Nov 11, 2022 at 07:06:14PM +0000, Marc Zyngier wrote: > On Thu, 10 Nov 2022 19:02:33 +0000, Will Deacon wrote: > > This is version six of the pKVM EL2 state series, extending the pKVM > > hypervisor code so that it can dynamically instantiate and manage VM > > data structures without the host being able to access them directly. > > These structures consist of a hyp VM, a set of hyp vCPUs and the stage-2 > > page-table for the MMU. The pages used to hold the hypervisor structures > > are returned to the host when the VM is destroyed. > > > > [...] > > As for Oliver's series, I've tentatively applied this to -next. > I've dropped Oliver's patch for now, but kept the RFC one. Maybe I'll > change my mind. > > Anyway, there was an interesting number of conflicts between the two > series, which I tried to resolve as well as I could, but it is likely > I broke something (although it compiles, so it must be perfect). > > Please have a look and shout if/when you spot something. Cheers, the resolution looks good to me and I've played around booting non-protected guests under pKVM without any issues so far. Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel