From patchwork Wed Jun 2 14:10:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Brijesh Singh X-Patchwork-Id: 12294737 X-Patchwork-Delegate: herbert@gondor.apana.org.au 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_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,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 79304C4708F for ; Wed, 2 Jun 2021 14:14:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 606C961242 for ; Wed, 2 Jun 2021 14:14:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230029AbhFBOQb (ORCPT ); Wed, 2 Jun 2021 10:16:31 -0400 Received: from mail-bn8nam11on2062.outbound.protection.outlook.com ([40.107.236.62]:57888 "EHLO NAM11-BN8-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S230208AbhFBOOu (ORCPT ); Wed, 2 Jun 2021 10:14:50 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=bXf1qq8cRQFPniCwQwb3KkyoleLTqBeEL1UEj22pb/KoBJVMTcIarQ2jf13uoSqUspPRIs8LyijQ46Eur3rxx8IRlEZGe8iqX9NedCxNheUtbNfdMAIg0Ocp8TDhZoam3paXZyhja9iOMsPa8fqx4A7hOPceAOQtNCTr1mU7I4A4d9u948eEeughX7587XNi8uygNqRN0Z+7gwZTDLiC00ysJkzAP3OfyYw+icNq1MVjvi8EV9owURL703MxztLWTgqG3ulMxfXRVzsNM/1NVOxZf9OqTOL3tqtI6m1Rb7632Uh/RtbLuXtK5XQhOulaTsYTxR51esvniTql/8qvTw== 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=g2Z7JSlGWPerJZfQq8QU8d7hr+48kKTAD1KSOj4Bnmo=; b=jvl5TSGmxFcqjHtB0n7lotOZkt4mF35MWxzlKnznxlpExe9zPiNTDyv/zBsmhv5AiBhP+8qY7ducpvVchZCug/8YyM23RaTwuKvkygwwL01TqEdnMPAJzwJKhDnN0sYbyRoSeWkm0dAnV3wVan49FKrOfAI9H8MhtYSK1PYicj2L+tC7u1sMyd3RCGBLQSbVBYDJhekM0+ykLzFr+X89e10+TEw2fRZvesUBXZy39xtfAlqzbpmccEDzG6bF7O9KqCJ/d1S9Q5WzcBlxTAeecQp77TswIcV3lQZMFBbu/3oj7vTscQDZcCNFWvjRBhtB6vLOxg/ScWOBP9zAWCCAGQ== 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=g2Z7JSlGWPerJZfQq8QU8d7hr+48kKTAD1KSOj4Bnmo=; b=Gmysjav6szr5xnBlkSfYKZIWOCw0Px16oi7rX5qY1y8z71bRhc959loo6pVLEDTHHBTZHRY391ob5n/HG9rfSUdPfpuNSleuWWt9ja+J1a7wCKVwEHNZmV4bOQQuA3HgT7oMMJNQg7XDzZr4gAwvJsGgWGjqTL+pENJDvUtvkG8= Authentication-Results: kernel.org; dkim=none (message not signed) header.d=none;kernel.org; dmarc=none action=none header.from=amd.com; Received: from SN6PR12MB2718.namprd12.prod.outlook.com (2603:10b6:805:6f::22) by SN1PR12MB2368.namprd12.prod.outlook.com (2603:10b6:802:32::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4195.20; Wed, 2 Jun 2021 14:11:42 +0000 Received: from SN6PR12MB2718.namprd12.prod.outlook.com ([fe80::9898:5b48:a062:db94]) by SN6PR12MB2718.namprd12.prod.outlook.com ([fe80::9898:5b48:a062:db94%6]) with mapi id 15.20.4173.030; Wed, 2 Jun 2021 14:11:42 +0000 From: Brijesh Singh To: x86@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-coco@lists.linux.dev, linux-mm@kvack.org, linux-crypto@vger.kernel.org Cc: Thomas Gleixner , Ingo Molnar , Joerg Roedel , Tom Lendacky , "H. Peter Anvin" , Ard Biesheuvel , Paolo Bonzini , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Andy Lutomirski , Dave Hansen , Sergio Lopez , Peter Gonda , Peter Zijlstra , Srinivas Pandruvada , David Rientjes , tony.luck@intel.com, npmccallum@redhat.com, Borislav Petkov , Brijesh Singh Subject: [PATCH Part2 RFC v3 11/37] crypto:ccp: Define the SEV-SNP commands Date: Wed, 2 Jun 2021 09:10:31 -0500 Message-Id: <20210602141057.27107-12-brijesh.singh@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210602141057.27107-1-brijesh.singh@amd.com> References: <20210602141057.27107-1-brijesh.singh@amd.com> X-Originating-IP: [165.204.77.1] X-ClientProxiedBy: SA0PR11CA0056.namprd11.prod.outlook.com (2603:10b6:806:d0::31) To SN6PR12MB2718.namprd12.prod.outlook.com (2603:10b6:805:6f::22) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from sbrijesh-desktop.amd.com (165.204.77.1) by SA0PR11CA0056.namprd11.prod.outlook.com (2603:10b6:806:d0::31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4195.20 via Frontend Transport; Wed, 2 Jun 2021 14:11:41 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 46a7b252-9342-48bd-2619-08d925d0589b X-MS-TrafficTypeDiagnostic: SN1PR12MB2368: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:7219; X-MS-Exchange-SenderADCheck: 1 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:1;SRV:;IPV:NLI;SFV:NSPM;H:SN6PR12MB2718.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(136003)(396003)(376002)(366004)(346002)(39860400002)(5660300002)(86362001)(6486002)(52116002)(7696005)(44832011)(38350700002)(38100700002)(956004)(2616005)(1076003)(8676002)(7416002)(8936002)(478600001)(186003)(316002)(4326008)(16526019)(26005)(66556008)(66476007)(2906002)(36756003)(30864003)(54906003)(83380400001)(6666004)(66946007);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 46a7b252-9342-48bd-2619-08d925d0589b X-MS-Exchange-CrossTenant-AuthSource: SN6PR12MB2718.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Jun 2021 14:11:42.2152 (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: FYwWJsiW1lfJfO0HyNYUhEenfLnXzYtOlKDZXb7NTjl5k9m69XKWpJsBbpUFsGOZAFpw+wUJjGDxxl2ikE2I9A== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN1PR12MB2368 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org AMD introduced the next generation of SEV called SEV-SNP (Secure Nested Paging). SEV-SNP builds upon existing SEV and SEV-ES functionality while adding new hardware security protection. Define the commands and structures used to communicate with the AMD-SP when creating and managing the SEV-SNP guests. The SEV-SNP firmware spec is available at developer.amd.com/sev. Signed-off-by: Brijesh Singh --- drivers/crypto/ccp/sev-dev.c | 16 ++- include/linux/psp-sev.h | 222 +++++++++++++++++++++++++++++++++++ include/uapi/linux/psp-sev.h | 44 +++++++ 3 files changed, 281 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c index 3506b2050fb8..0331d4cea7da 100644 --- a/drivers/crypto/ccp/sev-dev.c +++ b/drivers/crypto/ccp/sev-dev.c @@ -130,7 +130,21 @@ static int sev_cmd_buffer_len(int cmd) case SEV_CMD_DOWNLOAD_FIRMWARE: return sizeof(struct sev_data_download_firmware); case SEV_CMD_GET_ID: return sizeof(struct sev_data_get_id); case SEV_CMD_ATTESTATION_REPORT: return sizeof(struct sev_data_attestation_report); - case SEV_CMD_SEND_CANCEL: return sizeof(struct sev_data_send_cancel); + case SEV_CMD_SEND_CANCEL: return sizeof(struct sev_data_send_cancel); + case SEV_CMD_SNP_GCTX_CREATE: return sizeof(struct sev_data_snp_gctx_create); + case SEV_CMD_SNP_LAUNCH_START: return sizeof(struct sev_data_snp_launch_start); + case SEV_CMD_SNP_LAUNCH_UPDATE: return sizeof(struct sev_data_snp_launch_update); + case SEV_CMD_SNP_ACTIVATE: return sizeof(struct sev_data_snp_activate); + case SEV_CMD_SNP_DECOMMISSION: return sizeof(struct sev_data_snp_decommission); + case SEV_CMD_SNP_PAGE_RECLAIM: return sizeof(struct sev_data_snp_page_reclaim); + case SEV_CMD_SNP_GUEST_STATUS: return sizeof(struct sev_data_snp_guest_status); + case SEV_CMD_SNP_LAUNCH_FINISH: return sizeof(struct sev_data_snp_launch_finish); + case SEV_CMD_SNP_DBG_DECRYPT: return sizeof(struct sev_data_snp_dbg); + case SEV_CMD_SNP_DBG_ENCRYPT: return sizeof(struct sev_data_snp_dbg); + case SEV_CMD_SNP_PAGE_UNSMASH: return sizeof(struct sev_data_snp_page_unsmash); + case SEV_CMD_SNP_PLATFORM_STATUS: return sizeof(struct sev_data_snp_platform_status_buf); + case SEV_CMD_SNP_GUEST_REQUEST: return sizeof(struct sev_data_snp_guest_request); + case SEV_CMD_SNP_CONFIG: return sizeof(struct sev_data_snp_config); default: return 0; } diff --git a/include/linux/psp-sev.h b/include/linux/psp-sev.h index d48a7192e881..c3755099ab55 100644 --- a/include/linux/psp-sev.h +++ b/include/linux/psp-sev.h @@ -85,6 +85,34 @@ enum sev_cmd { SEV_CMD_DBG_DECRYPT = 0x060, SEV_CMD_DBG_ENCRYPT = 0x061, + /* SNP specific commands */ + SEV_CMD_SNP_INIT = 0x81, + SEV_CMD_SNP_SHUTDOWN = 0x82, + SEV_CMD_SNP_PLATFORM_STATUS = 0x83, + SEV_CMD_SNP_DF_FLUSH = 0x84, + SEV_CMD_SNP_INIT_EX = 0x85, + SEV_CMD_SNP_DECOMMISSION = 0x90, + SEV_CMD_SNP_ACTIVATE = 0x91, + SEV_CMD_SNP_GUEST_STATUS = 0x92, + SEV_CMD_SNP_GCTX_CREATE = 0x93, + SEV_CMD_SNP_GUEST_REQUEST = 0x94, + SEV_CMD_SNP_ACTIVATE_EX = 0x95, + SEV_CMD_SNP_LAUNCH_START = 0xA0, + SEV_CMD_SNP_LAUNCH_UPDATE = 0xA1, + SEV_CMD_SNP_LAUNCH_FINISH = 0xA2, + SEV_CMD_SNP_DBG_DECRYPT = 0xB0, + SEV_CMD_SNP_DBG_ENCRYPT = 0xB1, + SEV_CMD_SNP_PAGE_SWAP_OUT = 0xC0, + SEV_CMD_SNP_PAGE_SWAP_IN = 0xC1, + SEV_CMD_SNP_PAGE_MOVE = 0xC2, + SEV_CMD_SNP_PAGE_MD_INIT = 0xC3, + SEV_CMD_SNP_PAGE_MD_RECLAIM = 0xC4, + SEV_CMD_SNP_PAGE_RO_RECLAIM = 0xC5, + SEV_CMD_SNP_PAGE_RO_RESTORE = 0xC6, + SEV_CMD_SNP_PAGE_RECLAIM = 0xC7, + SEV_CMD_SNP_PAGE_UNSMASH = 0xC8, + SEV_CMD_SNP_CONFIG = 0xC9, + SEV_CMD_MAX, }; @@ -510,6 +538,200 @@ struct sev_data_attestation_report { u32 len; /* In/Out */ } __packed; +/** + * struct sev_data_snp_platform_status_buf - SNP_PLATFORM_STATUS command params + * + * @address: physical address where the status should be copied + */ +struct sev_data_snp_platform_status_buf { + u64 status_paddr; /* In */ +} __packed; + +/** + * struct sev_data_snp_download_firmware - SNP_DOWNLOAD_FIRMWARE command params + * + * @address: physical address of firmware image + * @len: len of the firmware image + */ +struct sev_data_snp_download_firmware { + u64 address; /* In */ + u32 len; /* In */ +} __packed; + +/** + * struct sev_data_snp_gctx_create - SNP_GCTX_CREATE command params + * + * @gctx_paddr: system physical address of the page donated to firmware by + * the hypervisor to contain the guest context. + */ +struct sev_data_snp_gctx_create { + u64 gctx_paddr; /* In */ +} __packed; + +/** + * struct sev_data_snp_activate - SNP_ACTIVATE command params + * + * @gctx_paddr: system physical address guest context page + * @asid: ASID to bind to the guest + */ +struct sev_data_snp_activate { + u64 gctx_paddr; /* In */ + u32 asid; /* In */ +} __packed; + +/** + * struct sev_data_snp_decommission - SNP_DECOMMISSION command params + * + * @address: system physical address guest context page + */ +struct sev_data_snp_decommission { + u64 gctx_paddr; /* In */ +} __packed; + +/** + * struct sev_data_snp_launch_start - SNP_LAUNCH_START command params + * + * @gctx_addr: system physical address of guest context page + * @policy: guest policy + * @ma_gctx_addr: system physical address of migration agent + * @imi_en: launch flow is launching an IMI for the purpose of + * guest-assisted migration. + * @ma_en: the guest is associated with a migration agent + */ +struct sev_data_snp_launch_start { + u64 gctx_paddr; /* In */ + u64 policy; /* In */ + u64 ma_gctx_paddr; /* In */ + u32 ma_en:1; /* In */ + u32 imi_en:1; /* In */ + u32 rsvd:30; + u8 gosvw[16]; /* In */ +} __packed; + +/* SNP support page type */ +enum { + SNP_PAGE_TYPE_NORMAL = 0x1, + SNP_PAGE_TYPE_VMSA = 0x2, + SNP_PAGE_TYPE_ZERO = 0x3, + SNP_PAGE_TYPE_UNMEASURED = 0x4, + SNP_PAGE_TYPE_SECRET = 0x5, + SNP_PAGE_TYPE_CPUID = 0x6, + + SNP_PAGE_TYPE_MAX +}; + +/** + * struct sev_data_snp_launch_update - SNP_LAUNCH_UPDATE command params + * + * @gctx_addr: system physical address of guest context page + * @imi_page: indicates that this page is part of the IMI of the guest + * @page_type: encoded page type + * @page_size: page size 0 indicates 4K and 1 indicates 2MB page + * @address: system physical address of destination page to encrypt + * @vmpl3_perms: VMPL permission mask for VMPL3 + * @vmpl2_perms: VMPL permission mask for VMPL2 + * @vmpl1_perms: VMPL permission mask for VMPL1 + */ +struct sev_data_snp_launch_update { + u64 gctx_paddr; /* In */ + u32 page_size:1; /* In */ + u32 page_type:3; /* In */ + u32 imi_page:1; /* In */ + u32 rsvd:27; + u32 rsvd2; + u64 address; /* In */ + u32 rsvd3:8; + u32 vmpl3_perms:8; /* In */ + u32 vmpl2_perms:8; /* In */ + u32 vmpl1_perms:8; /* In */ + u32 rsvd4; +} __packed; + +/** + * struct sev_data_snp_launch_finish - SNP_LAUNCH_FINISH command params + * + * @gctx_addr: system pphysical address of guest context page + */ +struct sev_data_snp_launch_finish { + u64 gctx_paddr; + u64 id_block_paddr; + u64 id_auth_paddr; + u8 id_block_en:1; + u8 auth_key_en:1; + u64 rsvd:62; + u8 host_data[32]; +} __packed; + +/** + * struct sev_data_snp_guest_status - SNP_GUEST_STATUS command params + * + * @gctx_paddr: system physical address of guest context page + * @address: system physical address of guest status page + */ +struct sev_data_snp_guest_status { + u64 gctx_paddr; + u64 address; +} __packed; + +/** + * struct sev_data_snp_page_reclaim - SNP_PAGE_RECLAIM command params + * + * @paddr: system physical address of page to be claimed. The BIT0 indicate + * the page size. 0h indicates 4 kB and 1h indicates 2 MB page. + */ +struct sev_data_snp_page_reclaim { + u64 paddr; +} __packed; + +/** + * struct sev_data_snp_page_unsmash - SNP_PAGE_UNMASH command params + * + * @paddr: system physical address of page to be unmashed. The BIT0 indicate + * the page size. 0h indicates 4 kB and 1h indicates 2 MB page. + */ +struct sev_data_snp_page_unsmash { + u64 paddr; +} __packed; + +/** + * struct sev_data_dbg - DBG_ENCRYPT/DBG_DECRYPT command parameters + * + * @handle: handle of the VM to perform debug operation + * @src_addr: source address of data to operate on + * @dst_addr: destination address of data to operate on + * @len: len of data to operate on + */ +struct sev_data_snp_dbg { + u64 gctx_paddr; /* In */ + u64 src_addr; /* In */ + u64 dst_addr; /* In */ + u32 len; /* In */ +} __packed; + +/** + * struct sev_snp_guest_request - SNP_GUEST_REQUEST command params + * + * @gctx_paddr: system physical address of guest context page + * @req_paddr: system physical address of request page + * @res_paddr: system physical address of response page + */ +struct sev_data_snp_guest_request { + u64 gctx_paddr; /* In */ + u64 req_paddr; /* In */ + u64 res_paddr; /* In */ +} __packed; + +/** + * struuct sev_data_snp_init - SNP_INIT_EX structure + * + * @init_rmp: indicate that the RMP should be initialized. + */ +struct sev_data_snp_init_ex { + u32 init_rmp:1; + u32 rsvd:31; + u8 rsvd1[60]; +} __packed; + #ifdef CONFIG_CRYPTO_DEV_SP_PSP /** diff --git a/include/uapi/linux/psp-sev.h b/include/uapi/linux/psp-sev.h index 91b4c63d5cbf..b7207629eb90 100644 --- a/include/uapi/linux/psp-sev.h +++ b/include/uapi/linux/psp-sev.h @@ -28,6 +28,8 @@ enum { SEV_PEK_CERT_IMPORT, SEV_GET_ID, /* This command is deprecated, use SEV_GET_ID2 */ SEV_GET_ID2, + SNP_PLATFORM_STATUS = 255, + SNP_CONFIG, SEV_MAX, }; @@ -61,6 +63,13 @@ typedef enum { SEV_RET_INVALID_PARAM, SEV_RET_RESOURCE_LIMIT, SEV_RET_SECURE_DATA_INVALID, + SEV_RET_INVALID_PAGE_SIZE, + SEV_RET_INVALID_PAGE_STATE, + SEV_RET_INVALID_MDATA_ENTRY, + SEV_RET_INVALID_PAGE_OWNER, + SEV_RET_INVALID_PAGE_AEAD_OFLOW, + SEV_RET_RMP_INIT_REQUIRED, + SEV_RET_MAX, } sev_ret_code; @@ -147,6 +156,41 @@ struct sev_user_data_get_id2 { __u32 length; /* In/Out */ } __packed; +/** + * struct sev_data_snp_platform_status - Platform status + * + * @major: API major version + * @minor: API minor version + * @state: current platform state + * @build: firmware build id for the API version + * @guest_count: the number of guest currently managed by the firmware + * @tcb_version: current TCB version + */ +struct sev_user_snp_status { + __u8 api_major; /* Out */ + __u8 api_minor; /* Out */ + __u8 state; /* Out */ + __u8 rsvd; + __u32 build_id; /* Out */ + __u32 rsvd1; + __u32 guest_count; /* Out */ + __u64 tcb_version; /* Out */ + __u64 rsvd2; +} __packed; + +/** + * struct sev_data_snp_config - system wide configuration value for SNP. + * + * @reported_tcb: The TCB version to report in the guest attestation report. + * @mask_chip_id: Indicates that the CHID_ID field in the attestation report + * will always be zero. + */ +struct sev_data_snp_config { + __u64 reported_tcb; /* In */ + __u32 mask_chip_id; /* In */ + __u8 rsvd[52]; +} __packed; + /** * struct sev_issue_cmd - SEV ioctl parameters *