From patchwork Wed Jul 7 18:35:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Brijesh Singh X-Patchwork-Id: 12363595 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,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 9B26AC11F6D for ; Wed, 7 Jul 2021 18:37:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8928761CCA for ; Wed, 7 Jul 2021 18:37:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232417AbhGGSk0 (ORCPT ); Wed, 7 Jul 2021 14:40:26 -0400 Received: from mail-dm3nam07on2067.outbound.protection.outlook.com ([40.107.95.67]:40288 "EHLO NAM02-DM3-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S232210AbhGGSkX (ORCPT ); Wed, 7 Jul 2021 14:40:23 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=m4QNkl3wJY9abX3h4KHEYoQc5GCz1se30TLN+gCDY6LEHt3RfmDiX/3qYKM68TWK5/5JLx0hVGOJnGhzosTYDrMlBXqFYWxK7QetQkZ81Yu7jBRM5pzWY0mWz71NY50YCpVxDAJXtdAkwIkq7IS1ba39cTdZmW1EWIRS73Zhstdkx4eWVgsRKcH8wUc9Bx6pQA1IUAUNDHIW8UThDeuaAn7L/afyzV+NWxqOG7k72R+xY2BBWIbPnhXsUhCHhy/+rrH4/GqoiEzRvyCJxqUOzbVqOH2yuHDWPHCImI+jw+0WVd+gpKDEZF1R0yjRZ6HDGoHDezPoZm5rUpfCBYM6SQ== 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=1YM10bexFFbTUaqoUYN3i4AeltaltS2MnjClZMvMo3w=; b=B+JP7SsYtLhVRsux/WEP2qm7Ydt4FWJP7/Nrps2H/LH66LharlYB3p8JX5j2N5c6nAfLHyYwksjdvXMYmw1psSuTvcd1MJt+QyxBta8NpCbmAHnHbxKcupwbQz25e4iProzykwPU3m6F/InS6SGzfNsYMG1WH1dqClqC0pwUyJIRXZmfdfZEhQOyvxbxeHfovfdLkEX89De6duGdEFZ+QEY3OMaQqtMSeDHem+v7Tm844KbYgurkpeqXzv/VBOAo+BcOvnR9LMEI2kG8pAuTBKFWd3adnNKYBy5hhQZOmOUrfwMMmiFrcJBB6IPyxqTT188UN4HkLC4Iyr3ZC/qiyA== 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=1YM10bexFFbTUaqoUYN3i4AeltaltS2MnjClZMvMo3w=; b=YqkcGDGYOwbMryA4Rj3ZTcTwD85v+Ka7AKcYiSZf1LUhRfhFakPfOSjmvPaxjhexUx/eVzLwiY3xqHcYOUNaeaTIb9BWD0WFgelLdj6czyn3vFzRt8iTKQSIWYPkvqX7EdpVBNvUvHC0+oLsuK7AREfu6g6kp5KRBIvFycCV4Nc= Authentication-Results: kernel.org; dkim=none (message not signed) header.d=none;kernel.org; dmarc=none action=none header.from=amd.com; Received: from BYAPR12MB2711.namprd12.prod.outlook.com (2603:10b6:a03:63::10) by BYAPR12MB2808.namprd12.prod.outlook.com (2603:10b6:a03:69::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4287.26; Wed, 7 Jul 2021 18:37:23 +0000 Received: from BYAPR12MB2711.namprd12.prod.outlook.com ([fe80::40e3:aade:9549:4bed]) by BYAPR12MB2711.namprd12.prod.outlook.com ([fe80::40e3:aade:9549:4bed%7]) with mapi id 15.20.4287.033; Wed, 7 Jul 2021 18:37:23 +0000 From: Brijesh Singh To: x86@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-efi@vger.kernel.org, platform-driver-x86@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 , Dov Murik , Tobin Feldman-Fitzthum , Borislav Petkov , Michael Roth , Vlastimil Babka , tony.luck@intel.com, npmccallum@redhat.com, brijesh.ksingh@gmail.com, Brijesh Singh Subject: [PATCH Part2 RFC v4 11/40] crypto:ccp: Define the SEV-SNP commands Date: Wed, 7 Jul 2021 13:35:47 -0500 Message-Id: <20210707183616.5620-12-brijesh.singh@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210707183616.5620-1-brijesh.singh@amd.com> References: <20210707183616.5620-1-brijesh.singh@amd.com> X-ClientProxiedBy: SN6PR04CA0078.namprd04.prod.outlook.com (2603:10b6:805:f2::19) To BYAPR12MB2711.namprd12.prod.outlook.com (2603:10b6:a03:63::10) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from sbrijesh-desktop.amd.com (165.204.77.1) by SN6PR04CA0078.namprd04.prod.outlook.com (2603:10b6:805:f2::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4308.20 via Frontend Transport; Wed, 7 Jul 2021 18:37:20 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 798d86b1-126d-420c-c2fe-08d941764280 X-MS-TrafficTypeDiagnostic: BYAPR12MB2808: 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:BYAPR12MB2711.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(396003)(136003)(346002)(39860400002)(366004)(376002)(7416002)(30864003)(36756003)(83380400001)(66556008)(38100700002)(52116002)(2616005)(5660300002)(956004)(2906002)(86362001)(7406005)(4326008)(1076003)(44832011)(7696005)(66946007)(54906003)(316002)(8936002)(6486002)(8676002)(478600001)(6666004)(26005)(66476007)(186003)(38350700002);DIR:OUT;SFP:1101; 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: 798d86b1-126d-420c-c2fe-08d941764280 X-MS-Exchange-CrossTenant-AuthSource: BYAPR12MB2711.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Jul 2021 18:37:22.9485 (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: CRCninVBtXiM4vnGfpygB9ldmnUJ5R9J3iugnvi3PDQ/dfTSW2gCguKlFc8rt42+7RdUitKWeXw3Ax4Ex0Wy5A== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR12MB2808 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 | 43 +++++++ 3 files changed, 280 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c index 3506b2050fb8..32884d2bf4e5 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_user_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..226de6330a18 100644 --- a/include/uapi/linux/psp-sev.h +++ b/include/uapi/linux/psp-sev.h @@ -61,6 +61,13 @@ 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 +154,42 @@ struct sev_user_data_get_id2 { __u32 length; /* In/Out */ } __packed; +/** + * struct sev_user_data_snp_status - SNP 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_data_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_user_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_user_data_snp_config { + __u64 reported_tcb; /* In */ + __u32 mask_chip_id; /* In */ + __u8 rsvd[52]; +} __packed; + + /** * struct sev_issue_cmd - SEV ioctl parameters *