From patchwork Thu May 30 15:13:05 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Martin X-Patchwork-Id: 10968991 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 522A7933 for ; Thu, 30 May 2019 15:13:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4307628BCC for ; Thu, 30 May 2019 15:13:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3729F28BD3; Thu, 30 May 2019 15:13:32 +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 C151C28BCF for ; Thu, 30 May 2019 15:13:31 +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=Lxc3m1J/Ks5b5CMFND9IvjkR3rmiU5AKjKpH3yRZZJU=; b=C9Z LB2SKdFPZpgU9YOmqRTTi5cydsQNeJ70YiHDgH4oIishQmElkLK50ES6XRK0h+pyy/kwhsPn9bdjm cTXtwx6q04TD7GbOAVIta/ghsFbpuZAPmzeo8x8rHoLovbPC98RXPL3XDFKq5wOcdFlWKZPikeEdG mqf0da4riYX51FA5aCCQjcdjhy9XNJZp5cdLcNl7Hp8psk+sXijbFRNmKwziF6WlEG8UZ+PO8glSf y59CU4Ee+zexWrRKuK4XDcainyQ+xHKUjft7gRv+arIbJcUp30eiaSse8YAJg7IAb6MDhCHaAlYTm ebeGPXnvOLdIqyUmAutEVGcPRpY0ftg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hWMkB-0001qt-FY; Thu, 30 May 2019 15:13:27 +0000 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70] helo=foss.arm.com) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hWMk8-0001qT-H0 for linux-arm-kernel@lists.infradead.org; Thu, 30 May 2019 15:13:25 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id C8D30341; Thu, 30 May 2019 08:13:22 -0700 (PDT) Received: from e103592.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 2AA253F59C; Thu, 30 May 2019 08:13:21 -0700 (PDT) From: Dave Martin To: kvmarm@lists.cs.columbia.edu Subject: [PATCH kvmtool v3 0/9] arm64: Pointer Authentication and SVE support Date: Thu, 30 May 2019 16:13:05 +0100 Message-Id: <1559229194-3036-1-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-20190530_081324_566894_A4CAE411 X-CRM114-Status: GOOD ( 12.87 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 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. A git tree is also available [2]. For pointer auth, I include Amit's v10 patch [3], 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, but the first 4 patches just re-sync headers and could be pulled earlier if you feel like it.] This series has been tested against Linux v5.2-rc1. If people have a strong view on the --sve-vls parameter, I'd be interested to discuss what that should look like. Since this is primarily a debug/experimentation option, the current implementation is probably good enough though. [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 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/ [3] git://linux-arm.org/kvmtool-dm.git sve/v3/head http://linux-arm.org/git?p=kvmtool-dm.git;a=shortlog;h=refs/heads/sve/v3/head Amit Daniel Kachhap (1): KVM: arm/arm64: Add a vcpu feature for pointer authentication Dave Martin (8): 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 v5.1-rc1 arm/arm64: Factor out ptrauth vcpu feature setup arm64: Make ptrauth enable/disable diagnostics more user-friendly arm64: Add SVE support arm64: Select SVE vector lengths via the command line 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-config-arch.h | 16 +++- arm/aarch64/include/kvm/kvm-cpu-arch.h | 3 + arm/aarch64/kvm-cpu.c | 148 ++++++++++++++++++++++++++++++ arm/include/arm-common/kvm-config-arch.h | 5 + arm/kvm-cpu.c | 5 + include/linux/kvm.h | 15 ++- powerpc/include/asm/kvm.h | 48 ++++++++++ util/update_headers.sh | 25 +++-- x86/include/asm/kvm.h | 1 + 12 files changed, 360 insertions(+), 9 deletions(-) create mode 100644 arm/aarch64/include/asm/sve_context.h