From patchwork Mon Jun 12 04:25:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Roth X-Patchwork-Id: 13275503 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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 336EAC7EE25 for ; Mon, 12 Jun 2023 04:38:20 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id C1F6A8E0003; Mon, 12 Jun 2023 00:38:19 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id BCF7B6B0074; Mon, 12 Jun 2023 00:38:19 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A49588E0003; Mon, 12 Jun 2023 00:38:19 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 965D26B0072 for ; Mon, 12 Jun 2023 00:38:19 -0400 (EDT) Received: from smtpin25.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 6548E120292 for ; Mon, 12 Jun 2023 04:38:19 +0000 (UTC) X-FDA: 80892839118.25.1ABA43A Received: from NAM11-DM6-obe.outbound.protection.outlook.com (mail-dm6nam11on2074.outbound.protection.outlook.com [40.107.223.74]) by imf24.hostedemail.com (Postfix) with ESMTP id 76F48180003 for ; Mon, 12 Jun 2023 04:38:16 +0000 (UTC) Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=amd.com header.s=selector1 header.b=tVvWTGPE; arc=pass ("microsoft.com:s=arcselector9901:i=1"); dmarc=pass (policy=quarantine) header.from=amd.com; spf=pass (imf24.hostedemail.com: domain of Michael.Roth@amd.com designates 40.107.223.74 as permitted sender) smtp.mailfrom=Michael.Roth@amd.com ARC-Seal: i=2; s=arc-20220608; d=hostedemail.com; t=1686544696; a=rsa-sha256; cv=pass; b=QtrrkvtaejXxVgGNYmtUWkihQfMyKU8W67bvceKb35pYjy0Eprg3c0IkS6o3HT3NYdt78v Npdzu13QTbiL5xzkbL6lKfPu9n29WnyfHUrk23ZKodD8v/iQDvK1zvhZKT25hg75Aq1VPO Bbc5V4zmpS8yfaVkhd1oEYLmjtbxniY= ARC-Authentication-Results: i=2; imf24.hostedemail.com; dkim=pass header.d=amd.com header.s=selector1 header.b=tVvWTGPE; arc=pass ("microsoft.com:s=arcselector9901:i=1"); dmarc=pass (policy=quarantine) header.from=amd.com; spf=pass (imf24.hostedemail.com: domain of Michael.Roth@amd.com designates 40.107.223.74 as permitted sender) smtp.mailfrom=Michael.Roth@amd.com ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1686544696; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=4q6MewkvTsxk63o0PqCssBYpMxPC1G6Szq/4zLuo80A=; b=w4Vm0gSD5zcTNGWR854zXOkbCjfJTQL6cwPYlACLmgcHj3hJ9qVktSb/+JWAbdInlPRDCP MPr/Kgi7l5fip+1oS4/yq5N4xh1WwctEAQK3T8ET8vp1q7lvDIlNyGPrX8+cDNZ4yyMvrR hyK61K+zYxaKfUEyrSjNiWpxbRvK5p4= ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=YHL5ICaabVRjAtFzcxY053uJmWnjEzsrQBW/k5LAsbQ4j+ITZtst/FTpBzGd+8K7p2QGrOIhaxIR2JxSk/IsMHd3BGISdGs51ZdP0sCBBDvaFh0YckBTFLEmEo9yezdUk4iIBgp5JCXW1Ny4ob2kci1rae5qSPEXuonkFPb0MKgNrBBkc3ro2YMkDOppf+I6YOAE1wG3tO6karPwXfa7useTjdmb0xLgnKHHfr4Kh5xLwORCrPXl4CQIGw0wSxshnedPdQ2Xl9l7SmjevqPqZTpHi4dOWKxuvCUIbGEtH0903IioZbMdDJOS4IhfPVLSsvVDnn3UevNezwRkivt2qw== 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-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=4q6MewkvTsxk63o0PqCssBYpMxPC1G6Szq/4zLuo80A=; b=cF0+QqqnKsL00Jywi98sTgNIu6kW+9SRx8/MbmocxUL6op/yo1vVhf1DL1ptyR077CmcvigROzJ5l8PkV+LKVHt6pKMcOP6Bj/UiDRPkDMlanj5LDpmmN0mnES6OIPgAxebGk3wyILJuS49qClQ0t5z8VDnQBp0hf++atmiJLM/TpmdsMwSgtrrruUrhqQc3AXjE8L7gchjk8RkA+xO2fwNCxoHiYebS+5wJNd77Rmy+sDjM2SZu3EujOqhahpXt3Vg2Gc6kRRHNIth8VCrzDOX8VKD3Pqd2cCsqwtdEBl5thsuyUAdk1Qqa57FXENsLKCuVvTxBbexB/mz/7BVerw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=vger.kernel.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); 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=4q6MewkvTsxk63o0PqCssBYpMxPC1G6Szq/4zLuo80A=; b=tVvWTGPEeP659g2BnR94YvY6clV1ysEmh3bpN/H79jqHKFPDacn9UDEPtRbdJ9PyydBoNWoa+ZjMZAmIV01QDTiS9ovlFi+n3bd33ZfozMtUO0wcfbRNMbW/GXEH4ap8MWpoftLv/g5TP2ovb4isnYgh8T8tkukv52LaMaWAu+s= Received: from MW2PR16CA0033.namprd16.prod.outlook.com (2603:10b6:907::46) by DS0PR12MB8344.namprd12.prod.outlook.com (2603:10b6:8:fe::7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6455.33; Mon, 12 Jun 2023 04:38:13 +0000 Received: from CO1PEPF000042A8.namprd03.prod.outlook.com (2603:10b6:907:0:cafe::aa) by MW2PR16CA0033.outlook.office365.com (2603:10b6:907::46) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6477.33 via Frontend Transport; Mon, 12 Jun 2023 04:38:13 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by CO1PEPF000042A8.mail.protection.outlook.com (10.167.243.37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.6500.21 via Frontend Transport; Mon, 12 Jun 2023 04:38:13 +0000 Received: from localhost (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.23; Sun, 11 Jun 2023 23:38:12 -0500 From: Michael Roth To: CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Brijesh Singh , Pavan Kumar Paluri Subject: [PATCH RFC v9 28/51] KVM: SVM: Add KVM_SNP_INIT command Date: Sun, 11 Jun 2023 23:25:36 -0500 Message-ID: <20230612042559.375660-29-michael.roth@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230612042559.375660-1-michael.roth@amd.com> References: <20230612042559.375660-1-michael.roth@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF000042A8:EE_|DS0PR12MB8344:EE_ X-MS-Office365-Filtering-Correlation-Id: b2939f41-0cc9-441f-db32-08db6afed560 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:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(346002)(376002)(396003)(39860400002)(136003)(451199021)(36840700001)(46966006)(40470700004)(5660300002)(7406005)(7416002)(70586007)(8936002)(8676002)(316002)(40480700001)(70206006)(6916009)(4326008)(41300700001)(54906003)(44832011)(2906002)(40460700003)(356005)(82740400003)(26005)(86362001)(81166007)(16526019)(1076003)(186003)(36756003)(36860700001)(336012)(426003)(2616005)(478600001)(82310400005)(47076005)(83380400001)(6666004)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jun 2023 04:38:13.5782 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b2939f41-0cc9-441f-db32-08db6afed560 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF000042A8.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB8344 X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 76F48180003 X-Stat-Signature: rtmpby9dqq5mrdt63cy4sggmwphk3fy6 X-HE-Tag: 1686544696-383211 X-HE-Meta: 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 a4K0mwov xraTQaoXapvdW5yLAQCgX6RMu8jlunFzsvY3kGVZIZ2wHvO6XKZSVuXJHU4+n5wFfGeLPKIgGN8vP+F2SUC06PBfQnluVEx1/cShbXq06UgmAsz5Is442VuNE1XUhGuu+65ne9pTABWhfIHseiCwlKXEq2Qv5aycfzBiQGqjNl3YKYHltJYbhnmY8haCi5PIIF4jbontC97upjm/k9ffgzagEZfbIRZkK1vv4GmYf0XDyjM21qFyuPBZdDwwpZBVdrjNm/Frh+x5t1/clW3YaSkDEHj3Jfmxqtp/Y9gzQW9EU+twmRHqiOQVQAyoFmZBTr3pVGSZ4br2G7eucVSYn1WxWHoC8SnoakVwPrCXYE/lFRyk= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Brijesh Singh The KVM_SNP_INIT command is used by the hypervisor to initialize the SEV-SNP platform context. In a typical workflow, this command should be the first command issued. When creating SEV-SNP guest, the VMM must use this command instead of the KVM_SEV_INIT or KVM_SEV_ES_INIT. The flags value must be zero, it will be extended in future SNP support to communicate the optional features (such as restricted INT injection etc). Co-developed-by: Pavan Kumar Paluri Signed-off-by: Pavan Kumar Paluri Signed-off-by: Brijesh Singh Signed-off-by: Ashish Kalra Signed-off-by: Michael Roth --- .../virt/kvm/x86/amd-memory-encryption.rst | 27 +++++++++++++ arch/x86/include/asm/svm.h | 1 + arch/x86/kvm/svm/sev.c | 39 ++++++++++++++++++- arch/x86/kvm/svm/svm.h | 4 ++ include/uapi/linux/kvm.h | 13 +++++++ 5 files changed, 83 insertions(+), 1 deletion(-) diff --git a/Documentation/virt/kvm/x86/amd-memory-encryption.rst b/Documentation/virt/kvm/x86/amd-memory-encryption.rst index 487b6328b3e7..1240d28badd6 100644 --- a/Documentation/virt/kvm/x86/amd-memory-encryption.rst +++ b/Documentation/virt/kvm/x86/amd-memory-encryption.rst @@ -434,6 +434,33 @@ issued by the hypervisor to make the guest ready for execution. Returns: 0 on success, -negative on error +18. KVM_SNP_INIT +---------------- + +The KVM_SNP_INIT command can be used by the hypervisor to initialize SEV-SNP +context. In a typical workflow, this command should be the first command issued. + +Parameters (in/out): struct kvm_snp_init + +Returns: 0 on success, -negative on error + +:: + + struct kvm_snp_init { + __u64 flags; + }; + +The flags bitmap is defined as:: + + /* enable the restricted injection */ + #define KVM_SEV_SNP_RESTRICTED_INJET (1<<0) + + /* enable the restricted injection timer */ + #define KVM_SEV_SNP_RESTRICTED_TIMER_INJET (1<<1) + +If the specified flags is not supported then return -EOPNOTSUPP, and the supported +flags are returned. + References ========== diff --git a/arch/x86/include/asm/svm.h b/arch/x86/include/asm/svm.h index e7c7379d6ac7..ac8edfdd60fa 100644 --- a/arch/x86/include/asm/svm.h +++ b/arch/x86/include/asm/svm.h @@ -288,6 +288,7 @@ static_assert((X2AVIC_MAX_PHYSICAL_ID & AVIC_PHYSICAL_MAX_INDEX_MASK) == X2AVIC_ #define AVIC_HPA_MASK ~((0xFFFULL << 52) | 0xFFF) +#define SVM_SEV_FEAT_SNP_ACTIVE BIT(0) struct vmcb_seg { u16 selector; diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index f5fcf6c33583..70e0576a32d0 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -243,6 +243,25 @@ static void sev_unbind_asid(struct kvm *kvm, unsigned int handle) sev_decommission(handle); } +static int verify_snp_init_flags(struct kvm *kvm, struct kvm_sev_cmd *argp) +{ + struct kvm_snp_init params; + int ret = 0; + + if (copy_from_user(¶ms, (void __user *)(uintptr_t)argp->data, sizeof(params))) + return -EFAULT; + + if (params.flags & ~SEV_SNP_SUPPORTED_FLAGS) + ret = -EOPNOTSUPP; + + params.flags = SEV_SNP_SUPPORTED_FLAGS; + + if (copy_to_user((void __user *)(uintptr_t)argp->data, ¶ms, sizeof(params))) + ret = -EFAULT; + + return ret; +} + static int sev_guest_init(struct kvm *kvm, struct kvm_sev_cmd *argp) { struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info; @@ -256,12 +275,19 @@ static int sev_guest_init(struct kvm *kvm, struct kvm_sev_cmd *argp) return ret; sev->active = true; - sev->es_active = argp->id == KVM_SEV_ES_INIT; + sev->es_active = (argp->id == KVM_SEV_ES_INIT || argp->id == KVM_SEV_SNP_INIT); + sev->snp_active = argp->id == KVM_SEV_SNP_INIT; asid = sev_asid_new(sev); if (asid < 0) goto e_no_asid; sev->asid = asid; + if (sev->snp_active) { + ret = verify_snp_init_flags(kvm, argp); + if (ret) + goto e_free; + } + ret = sev_platform_init(&argp->error); if (ret) goto e_free; @@ -277,6 +303,7 @@ static int sev_guest_init(struct kvm *kvm, struct kvm_sev_cmd *argp) sev_asid_free(sev); sev->asid = 0; e_no_asid: + sev->snp_active = false; sev->es_active = false; sev->active = false; return ret; @@ -612,6 +639,10 @@ static int sev_es_sync_vmsa(struct vcpu_svm *svm) save->xss = svm->vcpu.arch.ia32_xss; save->dr6 = svm->vcpu.arch.dr6; + /* Enable the SEV-SNP feature */ + if (sev_snp_guest(svm->vcpu.kvm)) + save->sev_features |= SVM_SEV_FEAT_SNP_ACTIVE; + pr_debug("Virtual Machine Save Area (VMSA):\n"); print_hex_dump_debug("", DUMP_PREFIX_NONE, 16, 1, save, sizeof(*save), false); @@ -1864,6 +1895,12 @@ int sev_mem_enc_ioctl(struct kvm *kvm, void __user *argp) } switch (sev_cmd.id) { + case KVM_SEV_SNP_INIT: + if (!sev_snp_enabled) { + r = -ENOTTY; + goto out; + } + fallthrough; case KVM_SEV_ES_INIT: if (!sev_es_enabled) { r = -ENOTTY; diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h index 6974d63c84f9..4360cf04f53a 100644 --- a/arch/x86/kvm/svm/svm.h +++ b/arch/x86/kvm/svm/svm.h @@ -74,6 +74,9 @@ enum { /* TPR and CR2 are always written before VMRUN */ #define VMCB_ALWAYS_DIRTY_MASK ((1U << VMCB_INTR) | (1U << VMCB_CR2)) +/* Supported init feature flags */ +#define SEV_SNP_SUPPORTED_FLAGS 0x0 + struct kvm_sev_info { bool active; /* SEV enabled guest */ bool es_active; /* SEV-ES enabled guest */ @@ -89,6 +92,7 @@ struct kvm_sev_info { struct list_head mirror_entry; /* Use as a list entry of mirrors */ struct misc_cg *misc_cg; /* For misc cgroup accounting */ atomic_t migration_in_progress; + u64 snp_init_flags; }; struct kvm_svm { diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 0fa665e8862a..43b6291e3a80 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -1926,6 +1926,9 @@ enum sev_cmd_id { /* Guest Migration Extension */ KVM_SEV_SEND_CANCEL, + /* SNP specific commands */ + KVM_SEV_SNP_INIT, + KVM_SEV_NR_MAX, }; @@ -2022,6 +2025,16 @@ struct kvm_sev_receive_update_data { __u32 trans_len; }; +/* enable the restricted injection */ +#define KVM_SEV_SNP_RESTRICTED_INJET (1 << 0) + +/* enable the restricted injection timer */ +#define KVM_SEV_SNP_RESTRICTED_TIMER_INJET (1 << 1) + +struct kvm_snp_init { + __u64 flags; +}; + #define KVM_DEV_ASSIGN_ENABLE_IOMMU (1 << 0) #define KVM_DEV_ASSIGN_PCI_2_3 (1 << 1) #define KVM_DEV_ASSIGN_MASK_INTX (1 << 2)