From patchwork Fri Jun 7 11:26:21 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Martin X-Patchwork-Id: 10981487 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D47C93A3F for ; Fri, 7 Jun 2019 11:26:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C1373284D1 for ; Fri, 7 Jun 2019 11:26:45 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B55DD28B77; Fri, 7 Jun 2019 11:26:45 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 42330284D1 for ; Fri, 7 Jun 2019 11:26:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=cjHz1NVcge8bKzAPp3niOOjIrxj4fCQtv5k7xVxfMvw=; b=s4g 7MyGem2OSficohmgCCsVosNsHWECvCZ6G6fK4XP/4ByEz9lYTOzuss9R3Fv6Ko3NcL79caCE4Txrv whBgXLfzxoJ/vPn6m9+tJK/rqQEwZdeyok5yEotjx2MJk9EE9hXiaSXLcB0kgzRs9eYl5VS/cVRPL aUkCTnOahHPZkZZWvr2ALze1Nlj3G9WgwMDe0jfZrEN3rBi9tJ4ctnDHyumK8wK1RZj2cV/fKRO3W GAAxibEQouqi+wvD85XJbBgbhRc4sRwqc3g03D/id04N7wxmLHOreU4kFRL0gt3cFVmgCgiihoHrK 5dJ2/yrlxhVwxKscNjtaJVOnHC+QtfQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hZD17-0007V1-4o; Fri, 07 Jun 2019 11:26:41 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hZD14-0007Ub-2d for linux-arm-kernel@lists.infradead.org; Fri, 07 Jun 2019 11:26:39 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 843F828; Fri, 7 Jun 2019 04:26:34 -0700 (PDT) Received: from e103592.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id A7FEC3F246; Fri, 7 Jun 2019 04:28:13 -0700 (PDT) From: Dave Martin To: kvmarm@lists.cs.columbia.edu Subject: [PATCH kvmtool v4 0/8] arm64: Pointer Authentication and SVE support Date: Fri, 7 Jun 2019 12:26:21 +0100 Message-Id: <1559906789-20936-1-git-send-email-Dave.Martin@arm.com> X-Mailer: git-send-email 2.1.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190607_042638_209725_9B602511 X-CRM114-Status: GOOD ( 11.00 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Christoffer Dall , Marc Zyngier , Andre Przywara , Will Deacon , Kristina Martsenko , Zhang Lei , Amit Daniel Kachhap , =?utf-8?q?Alex_Benn=C3=A9e?= , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP This series, based on kvmtool master [1], implements basic support for pointer authentication and SVE for guests. This superseded the previous v3 series [2]. A git tree is also available [3]. For pointer auth, I include Amit's v10 patch [4], with some additional refactoring to sit nicely alongside SVE, and some cosmetic / diagnostic tidyups discussed during review on-list. (I've kept the extra changes separate for easier review, but they could be folded if desired.) [Maintainer note: I'd like Amit to comment on my changes on top of his pointer auth patch so that that can be folded together as appropriate.] This series has been tested against Linux v5.2-rc1. After discussion with Will, the command-line options for controlling pointer auth and SVE support have all been dropped, since they are not useful to normal users: instead, we just default to the best configuration that the host supports. There's always the option to add this functionality back in some more appropriate form later, if someone has a use for it. See the individual patches for other minor changes. [1] git://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git master https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git/log/ eaeaf60808d6 ("virtio/blk: Avoid taking pointer to packed struct") [2] [PATCH kvmtool v3 0/9] arm64: Pointer Authentication and SVE support https://lists.cs.columbia.edu/pipermail/kvmarm/2019-May/036050.html [3] [PATCH v10 3/5] KVM: arm64: Add userspace flag to enable pointer authentication https://lore.kernel.org/linux-arm-kernel/1555994558-26349-6-git-send-email-amit.kachhap@arm.com/ [4] git://linux-arm.org/kvmtool-dm.git sve/v4/head http://linux-arm.org/git?p=kvmtool-dm.git;a=shortlog;h=refs/heads/sve/v4/head Amit Daniel Kachhap (1): KVM: arm/arm64: Add a vcpu feature for pointer authentication Dave Martin (7): update_headers.sh: Add missing shell quoting update_headers.sh: Cleanly report failure on error update_headers.sh: arm64: Copy sve_context.h if available update_headers: Sync kvm UAPI headers with linux v5.2-rc1 KVM: arm/arm64: Back out ptrauth command-line arguments arm/arm64: Factor out ptrauth vcpu feature setup arm64: Add SVE support arm/aarch32/include/kvm/kvm-cpu-arch.h | 7 +++++ arm/aarch64/include/asm/kvm.h | 43 +++++++++++++++++++++++++++ arm/aarch64/include/asm/sve_context.h | 53 ++++++++++++++++++++++++++++++++++ arm/aarch64/include/kvm/kvm-cpu-arch.h | 3 ++ arm/aarch64/kvm-cpu.c | 28 ++++++++++++++++++ arm/kvm-cpu.c | 5 ++++ include/linux/kvm.h | 15 ++++++++-- powerpc/include/asm/kvm.h | 48 ++++++++++++++++++++++++++++++ util/update_headers.sh | 26 +++++++++++++---- x86/include/asm/kvm.h | 1 + 10 files changed, 221 insertions(+), 8 deletions(-) create mode 100644 arm/aarch64/include/asm/sve_context.h