From patchwork Thu Aug 26 22:26:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Roth X-Patchwork-Id: 12460859 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=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,MSGID_FROM_MTA_HEADER,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 7058DC432BE for ; Thu, 26 Aug 2021 22:36:59 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0227060EBA for ; Thu, 26 Aug 2021 22:36:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 0227060EBA Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=amd.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:35534 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mJNzW-0003R8-85 for qemu-devel@archiver.kernel.org; Thu, 26 Aug 2021 18:36:58 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:59482) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mJNqh-0001FM-UG for qemu-devel@nongnu.org; Thu, 26 Aug 2021 18:27:51 -0400 Received: from mail-dm6nam11hn2231.outbound.protection.outlook.com ([52.100.172.231]:40160 helo=NAM11-DM6-obe.outbound.protection.outlook.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mJNqe-0005eY-IQ for qemu-devel@nongnu.org; Thu, 26 Aug 2021 18:27:51 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=FKl7axMEtr8lkjufhYmrhBR9tBExEI8EQn4HPpcvUfwHpkrmyUqNt2yGxgIRXaTYbvDRMdZ3THX7XETwQwOmLwtB9pCner5uJWN/w81rIYbP9yIa0EdA3e6RXpqmz3Gh8JvZhy50IA3d6wUfiAG0qJmsbosixDRZKszQWaidvcZZBssf6YmOhJDVRuAjiyHE5fxcS293ohPTJmftU16J01nlUIpc8eSiFC9mKA+GqXZNL16C3mWtTrz11wCChyFPJB82GZnbGVwN1Rkat/Zsyxn1yloAYQlafWXrDjjmQxWqIjYl3uCfyHQ6XOpCSH87XUH7diGFmjHL0sSobm5nZg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=bEznvkHlj8jZDn8Gg5WtAr1gYrNRCDUL/RaSNLddoRQ=; b=eBUw0OcKXKdgWgZ5dcxFfu1CJDX5Vc2rODxSqkHBqhr+tcnZK/gvfeL+iyb87/oGRz4quP0Lizmxlfd5AQHUKqv2Z+vnGBy0Lz3lt7BTmcvgHnvCvehCHLFS3MlY96vMX6ws803bpcbF/9EQvXQJtOigI6y71oXuc7kqawNUy9pJF+VgARUbQHqFcxxh0KzQOM+FGZZ7sLH0LOev/ysrPg4f8pp7auJT8rqhfsvpAMbBek9T8QDBrZTPoD5M2r8gBCYjMDZGg1bDBfmeHXi3YxzE+p74Ta0rKxAlpChBW+oXeQVIXOF3OnwaPihaIjBuP4jcjW4OxyXAww7tQ1DO8A== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=amd.com; dmarc=pass action=none header.from=amd.com; dkim=pass header.d=amd.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=bEznvkHlj8jZDn8Gg5WtAr1gYrNRCDUL/RaSNLddoRQ=; b=QTlM+3V68BuO9XBS5hbLqbPffUwnR1KOcjbQUGLzdnuVBvS6psMmiAT4rnsSMWevq9fdbq1c99sytjFmJ0Ss0+8BjSvefH52ioOYDdYocZ0OEwhpNiMupYFYcgYXU2GADi6tDPXRgWknzGtrrnzbME1cYYIZq/SYLyxZCc+L+Cs= Authentication-Results: nongnu.org; dkim=none (message not signed) header.d=none;nongnu.org; dmarc=none action=none header.from=amd.com; Received: from CH2PR12MB4133.namprd12.prod.outlook.com (2603:10b6:610:7a::13) by CH2PR12MB4293.namprd12.prod.outlook.com (2603:10b6:610:7e::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4436.19; Thu, 26 Aug 2021 22:27:11 +0000 Received: from CH2PR12MB4133.namprd12.prod.outlook.com ([fe80::d19e:b657:5259:24d0]) by CH2PR12MB4133.namprd12.prod.outlook.com ([fe80::d19e:b657:5259:24d0%8]) with mapi id 15.20.4436.019; Thu, 26 Aug 2021 22:27:11 +0000 From: Michael Roth To: qemu-devel@nongnu.org Cc: Connor Kuehl , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S . Tsirkin" , James Bottomley , "Dr . David Alan Gilbert" , Tom Lendacky , Paolo Bonzini , Dov Murik , David Gibson , =?utf-8?q?Daniel_P_=2E_Berrang?= =?utf-8?q?=C3=A9?= , kvm@vger.kernel.org, Eduardo Habkost , Brijesh Singh , Markus Armbruster , Eric Blake Subject: [RFC PATCH v2 00/12] Add AMD Secure Nested Paging (SEV-SNP) support Date: Thu, 26 Aug 2021 17:26:15 -0500 Message-Id: <20210826222627.3556-1-michael.roth@amd.com> X-Mailer: git-send-email 2.25.1 X-ClientProxiedBy: SA0PR11CA0084.namprd11.prod.outlook.com (2603:10b6:806:d2::29) To CH2PR12MB4133.namprd12.prod.outlook.com (2603:10b6:610:7a::13) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost (165.204.77.1) by SA0PR11CA0084.namprd11.prod.outlook.com (2603:10b6:806:d2::29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4457.19 via Frontend Transport; Thu, 26 Aug 2021 22:27:10 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 2918e834-9f3b-4981-fb7f-08d968e0a58f X-MS-TrafficTypeDiagnostic: CH2PR12MB4293: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8882; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:5; SRV:; IPV:NLI; SFV:SPM; H:CH2PR12MB4133.namprd12.prod.outlook.com; PTR:; CAT:OSPM; SFS:(4636009)(366004)(38100700002)(38350700002)(508600001)(6916009)(54906003)(966005)(66556008)(66476007)(1076003)(2906002)(5660300002)(6496006)(8936002)(52116002)(86362001)(316002)(186003)(6486002)(2616005)(4326008)(26005)(83380400001)(66946007)(36756003)(44832011)(956004)(8676002)(7416002)(23200700001); DIR:OUT; SFP:1501; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 2918e834-9f3b-4981-fb7f-08d968e0a58f X-MS-Exchange-CrossTenant-AuthSource: CH2PR12MB4133.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Aug 2021 22:27:11.0679 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: ppNGfaa1oaiuy+Cc8w+oPOiSujy4dNP9bYF7RQwuG2D9Uc6ftWY+eKmEYUMswTyddcdKfL5b9lHmJqJa7aQseg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR12MB4293 Received-SPF: softfail client-ip=52.100.172.231; envelope-from=Michael.Roth@amd.com; helo=NAM11-DM6-obe.outbound.protection.outlook.com X-Spam_score_int: -1 X-Spam_score: -0.2 X-Spam_bar: / X-Spam_report: (-0.2 / 5.0 requ) DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" These patches implement SEV-SNP along with CPUID enforcement support for QEMU, and are also available at: https://github.com/mdroth/qemu/commits/snp-rfc-v2-upstream They are based on the initial RFC submitted by Brijesh: https://lore.kernel.org/qemu-devel/20210722000259.ykepl7t6ptua7im5@amd.com/T/ Changes since RFC v1: - rebased onto latest master - drop SNP config file in favor of a new 'sev-snp-guest' object where all SNP-related params are passed as strings/integers via command-line - report specific error if BIOS reports invalid address/len for reserved/pre-validated regions (Connor) - use Range helpers for handling validated region overlaps (Dave) - simplify error handling in sev_snp_launch_start, and report the correct return code when handling LAUNCH_START failures (Dov) - add SEV-SNP bit to CPUID 0x8000001f when SNP enabled - updated query-sev to handle differences between SEV and SEV-SNP - updated to work against v5 of SEV-SNP host kernel / hypervisor patches Overview -------- SEV-SNP builds upon existing SEV and SEV-ES functionality while adding new hardware-based memory protections. SEV-SNP adds strong memory integrity protection to help prevent malicious hypervisor-based attacks like data replay, memory re-mapping and more in order to create an isolated memory encryption environment. This series depends on the following patches to support SEV-SNP in Linux kernel and OVMF: guest kernel (v5, part 1): https://lore.kernel.org/kvm/20210820151933.22401-1-brijesh.singh@amd.com/T/ host kernel (v5, part 2): https://lore.kernel.org/lkml/20210820155918.7518-1-brijesh.singh@amd.com/ OVMF (v5): https://edk2.groups.io/g/devel/message/77335?p=,,,20,0,0,0::Created,,posterid%3A5969970,20,2,20,83891508 The Qemu patches uses the command id added by the SEV-SNP hypervisor patches to bootstrap the SEV-SNP VMs. Additional resources -------------------- SEV-SNP whitepaper https://www.amd.com/system/files/TechDocs/SEV-SNP-strengthening-vm-isolation-with-integrity-protection-and-more.pdf APM 2: https://www.amd.com/system/files/TechDocs/24593.pdf (section 15.36) GHCB spec: https://developer.amd.com/wp-content/resources/56421.pdf SEV-SNP firmware specification: https://www.amd.com/system/files/TechDocs/56860.pdf ---------------------------------------------------------------- Brijesh Singh (6): linux-header: add the SNP specific command i386/sev: introduce 'sev-snp-guest' object i386/sev: initialize SNP context i386/sev: add the SNP launch start context i386/sev: add support to encrypt BIOS when SEV-SNP is enabled i386/sev: populate secrets and cpuid page and finalize the SNP launch Michael Roth (6): i386/sev: introduce "sev-common" type to encapsulate common SEV state target/i386: set SEV-SNP CPUID bit when SNP enabled target/i386: allow versioned CPUs to specify new cache_info target/i386: add new EPYC CPU versions with updated cache_info i386/sev: sev-snp: add support for CPUID validation i386/sev: update query-sev QAPI format to handle SEV-SNP docs/amd-memory-encryption.txt | 77 +++- hw/i386/pc_sysfw.c | 7 +- include/sysemu/sev.h | 2 +- linux-headers/linux/kvm.h | 50 +++ qapi/misc-target.json | 71 ++- qapi/qom.json | 94 +++- target/i386/cpu.c | 221 ++++++++- target/i386/monitor.c | 29 +- target/i386/sev-stub.c | 8 +- target/i386/sev.c | 989 +++++++++++++++++++++++++++++++++++------ target/i386/sev_i386.h | 4 + target/i386/trace-events | 4 + 12 files changed, 1374 insertions(+), 182 deletions(-)