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Sampat" , Scott Soule Cheloha , Ackerley Tng , Fuad Tabba Subject: [RFC PATCH kernel 11/17] tsm/core: Add TDI status Date: Wed, 16 Sep 2026 21:51:51 +1000 Message-ID: <20260916115159.1938195-12-aik@amd.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260916115159.1938195-1-aik@amd.com> References: <20260916115159.1938195-1-aik@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-ClientProxiedBy: satlexmb08.amd.com (10.181.42.217) To satlexmb07.amd.com (10.181.42.216) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ5PEPF00000208:EE_|SJ0PR12MB6832:EE_ X-MS-Office365-Filtering-Correlation-Id: d8ed4718-0d0d-4492-fba9-08df13e9f352 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|82310400026|7416014|32650700020|376014|23010399003|36860700016|18002099003|22082099003|10067099003|56012099006|11063799006; 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:NLI;SFV:NSPM;H:satlexmb07.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(1800799024)(82310400026)(7416014)(32650700020)(376014)(23010399003)(36860700016)(18002099003)(22082099003)(10067099003)(56012099006)(11063799006);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: Fw53La2fWg2oO27psEqX3jIivEE3n3gbx3/xjn+KQHm1lz4FNVBajz48hTuLTPBt6uG2tVEbRRVvKQr7qSZv/THDK5/fsPRLILmlZp0+sWXWEMlp25tRTvdUlkvhgDpQhBBk7Xpw2/WNTNcciwCV4ENZvJuvlLVUt1sTm2llbK9DDNN55pWfltlQswjlh2XFTQbM3dBdqqt+eTE/9bviiGOC+WUEncGgm0s5E9hPqxwtrOEHu++p+E6DTbn76h4jtwoev54pqgHFtv9qpZ3UnUOsoBgI/lRE0iX1qfId86tWTOyfo3im62f04xW5+LNlhm5i3d1Ohcu/n4ZPM6reeV5E+Yufduo2+SyugUAxp87dhY4NTuBXalrrqjLQ46tVhj9YCY3Hk8coI/nSAbVxEzdI6mbCYS8c/Eerz4Y0bR2xhA+W8KI8DfNb2knsosaa X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Sep 2026 11:59:23.9209 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d8ed4718-0d0d-4492-fba9-08df13e9f352 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=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SJ5PEPF00000208.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR12MB6832 Define a structure with all info about a TDI such as TDISP status, bind state, used START_INTERFACE options and the report digest. Signed-off-by: Alexey Kardashevskiy --- include/linux/pci-tsm.h | 69 ++++++++++++++++++++ 1 file changed, 69 insertions(+) diff --git a/include/linux/pci-tsm.h b/include/linux/pci-tsm.h index 9b34304d9a1f..2ca577e2a37e 100644 --- a/include/linux/pci-tsm.h +++ b/include/linux/pci-tsm.h @@ -11,6 +11,7 @@ struct pci_tsm; struct tsm_dev; struct kvm; +struct tsm_tdi_status; enum pci_tsm_req_scope; /* @@ -88,6 +89,7 @@ struct pci_tsm_ops { int (*refresh_evidence)(struct pci_tsm *tsm, const void *nonce, size_t nonce_len); + int (*tdi_status)(struct pci_dev *pdev, struct tsm_tdi_status *ts); }; /** @@ -331,4 +333,71 @@ static inline ssize_t pci_tsm_guest_req(struct pci_dev *pdev, return -ENXIO; } #endif + +/* private: */ + +enum tsm_tdisp_state { + TDISP_STATE_CONFIG_UNLOCKED = 0, + TDISP_STATE_CONFIG_LOCKED = 1, + TDISP_STATE_RUN = 2, + TDISP_STATE_ERROR = 3, +}; + +enum tsm_tdisp_status { + TDISP_STATE_BOUND = 0, + TDISP_STATE_INVALID = 1, + TDISP_STATE_UNBOUND = 2, +}; + +/* + * struct tdisp_interface_id - TDISP INTERFACE_ID Definition + * + * @function_id: Identifies the function of the device hosting the TDI + * 15:0: @rid: Requester ID + * 23:16: @rseg: Requester Segment (Reserved if Requester Segment Valid is Clear) + * 24: @rseg_valid: Requester Segment Valid + * 31:25 – Reserved + * 8B - Reserved + */ +#define TSM_TDISP_IID_REQUESTER_ID GENMASK(15, 0) +#define TSM_TDISP_IID_RSEG GENMASK(23, 16) +#define TSM_TDISP_IID_RSEG_VALID BIT(24) + +struct tdisp_interface_id { + __u32 function_id; /* TSM_TDISP_IID_xxxx */ + __u8 reserved[8]; +} __packed; + +struct tsm_tdi_status { + __u8 status; /* enum tsm_tdisp_status */ + __u8 state; /* enum tsm_tdisp_state */ + __u8 meas_digest_fresh; + __u8 meas_digest_valid; + __u8 all_request_redirect; + __u8 bind_p2p; + __u8 lock_msix; + __u8 no_fw_update; + __u16 cache_line_size; + __u64 spdm_algos; /* Bitmask of TSM_SPDM_ALGOS */ + __u8 certs_digest[48]; + __u8 meas_digest[48]; + __u8 interface_report_digest[48]; + __u64 intf_report_counter; + struct tdisp_interface_id id; + __u64 tdi_id; +} __packed; + +enum tsm_spdm_algos { + TSM_SPDM_ALGOS_DHE_SECP256R1, + TSM_SPDM_ALGOS_DHE_SECP384R1, + TSM_SPDM_ALGOS_AEAD_AES_128_GCM, + TSM_SPDM_ALGOS_AEAD_AES_256_GCM, + TSM_SPDM_ALGOS_ASYM_TPM_ALG_RSASSA_3072, + TSM_SPDM_ALGOS_ASYM_TPM_ALG_ECDSA_ECC_NIST_P256, + TSM_SPDM_ALGOS_ASYM_TPM_ALG_ECDSA_ECC_NIST_P384, + TSM_SPDM_ALGOS_HASH_TPM_ALG_SHA_256, + TSM_SPDM_ALGOS_HASH_TPM_ALG_SHA_384, + TSM_SPDM_ALGOS_KEY_SCHED_SPDM_KEY_SCHEDULE, +}; + #endif /*__PCI_TSM_H */ -- 2.55.0