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Sun, 31 Aug 2025 20:49:33 -0700 (PDT) From: Wilfred Mallawa To: Alistair Francis Cc: Keith Busch , Klaus Jensen , Jesper Devantier , Stefan Hajnoczi , Fam Zheng , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Kevin Wolf , Hanna Reitz , "Michael S . Tsirkin" , Marcel Apfelbaum , qemu-devel@nongnu.org, qemu-block@nongnu.org, Jonathan Cameron , Wilfred Mallawa Subject: [PATCH v3 3/5] hw/nvme: add NVMe Admin Security SPDM support Date: Mon, 1 Sep 2025 13:47:58 +1000 Message-ID: <20250901034759.85042-5-wilfred.opensource@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250901034759.85042-2-wilfred.opensource@gmail.com> References: <20250901034759.85042-2-wilfred.opensource@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::635; envelope-from=wilfred.opensource@gmail.com; helo=mail-pl1-x635.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1756698673777116600 Content-Type: text/plain; charset="utf-8" From: Wilfred Mallawa Adds the NVMe Admin Security Send/Receive command support with support for DMTFs SPDM. The transport binding for SPDM is defined in the DMTF DSP0286. Signed-off-by: Wilfred Mallawa --- hw/nvme/ctrl.c | 188 ++++++++++++++++++++++++++++++++++++++++++- hw/nvme/nvme.h | 5 ++ include/block/nvme.h | 15 ++++ 3 files changed, 207 insertions(+), 1 deletion(-) diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c index f5ee6bf260..557f634016 100644 --- a/hw/nvme/ctrl.c +++ b/hw/nvme/ctrl.c @@ -282,6 +282,8 @@ static const uint32_t nvme_cse_acs_default[256] =3D { [NVME_ADM_CMD_FORMAT_NVM] =3D NVME_CMD_EFF_CSUPP | NVME_CMD_EFF_= LBCC, [NVME_ADM_CMD_DIRECTIVE_RECV] =3D NVME_CMD_EFF_CSUPP, [NVME_ADM_CMD_DIRECTIVE_SEND] =3D NVME_CMD_EFF_CSUPP, + [NVME_ADM_CMD_SECURITY_SEND] =3D NVME_CMD_EFF_CSUPP, + [NVME_ADM_CMD_SECURITY_RECV] =3D NVME_CMD_EFF_CSUPP, }; =20 static const uint32_t nvme_cse_iocs_nvm_default[256] =3D { @@ -7282,6 +7284,185 @@ static uint16_t nvme_dbbuf_config(NvmeCtrl *n, cons= t NvmeRequest *req) return NVME_SUCCESS; } =20 +static uint16_t nvme_sec_prot_spdm_send(NvmeCtrl *n, NvmeRequest *req) +{ + StorageSpdmTransportHeader hdr =3D {0}; + g_autofree uint8_t *sec_buf =3D NULL; + uint32_t transfer_len =3D le32_to_cpu(req->cmd.cdw11); + uint32_t transport_transfer_len =3D transfer_len; + uint32_t dw10 =3D le32_to_cpu(req->cmd.cdw10); + uint32_t recvd; + uint16_t nvme_cmd_status, ret; + uint8_t secp =3D extract32(dw10, 24, 8); + uint8_t spsp1 =3D extract32(dw10, 16, 8); + uint8_t spsp0 =3D extract32(dw10, 8, 8); + bool spdm_res; + + transport_transfer_len +=3D sizeof(hdr); + if (transport_transfer_len > SPDM_SOCKET_MAX_MESSAGE_BUFFER_SIZE) { + return NVME_INVALID_FIELD | NVME_DNR; + } + + /* Generate the NVMe transport header */ + hdr.security_protocol =3D secp; + hdr.security_protocol_specific =3D cpu_to_le16((spsp1 << 8) | spsp0); + hdr.length =3D cpu_to_le32(transfer_len); + + sec_buf =3D g_malloc0(transport_transfer_len); + + /* Attach the transport header */ + memcpy(sec_buf, &hdr, sizeof(hdr)); + ret =3D nvme_h2c(n, sec_buf + sizeof(hdr), transfer_len, req); + if (ret) { + return ret; + } + + spdm_res =3D spdm_socket_send(n->spdm_socket, SPDM_SOCKET_STORAGE_CMD_= IF_SEND, + SPDM_SOCKET_TRANSPORT_TYPE_NVME, sec_buf, + transport_transfer_len); + if (!spdm_res) { + return NVME_DATA_TRAS_ERROR | NVME_DNR; + } + + /* The responder shall ack with message status */ + recvd =3D spdm_socket_receive(n->spdm_socket, SPDM_SOCKET_TRANSPORT_TY= PE_NVME, + (uint8_t *)&nvme_cmd_status, + SPDM_SOCKET_MAX_MSG_STATUS_LEN); + + nvme_cmd_status =3D cpu_to_be16(nvme_cmd_status); + + if (recvd < SPDM_SOCKET_MAX_MSG_STATUS_LEN) { + return NVME_DATA_TRAS_ERROR | NVME_DNR; + } + + return nvme_cmd_status; +} + +/* From host to controller */ +static uint16_t nvme_security_send(NvmeCtrl *n, NvmeRequest *req) +{ + uint32_t dw10 =3D le32_to_cpu(req->cmd.cdw10); + uint8_t secp =3D (dw10 >> 24) & 0xff; + + switch (secp) { + case NVME_SEC_PROT_DMTF_SPDM: + return nvme_sec_prot_spdm_send(n, req); + default: + /* Unsupported Security Protocol Type */ + return NVME_INVALID_FIELD | NVME_DNR; + } + + return NVME_INVALID_FIELD | NVME_DNR; +} + +static uint16_t nvme_sec_prot_spdm_receive(NvmeCtrl *n, NvmeRequest *req) +{ + StorageSpdmTransportHeader hdr; + g_autofree uint8_t *rsp_spdm_buf =3D NULL; + uint32_t dw10 =3D le32_to_cpu(req->cmd.cdw10); + uint32_t alloc_len =3D le32_to_cpu(req->cmd.cdw11); + uint32_t recvd, spdm_res; + uint16_t nvme_cmd_status, ret; + uint8_t secp =3D extract32(dw10, 24, 8); + uint8_t spsp1 =3D extract32(dw10, 16, 8); + uint8_t spsp0 =3D extract32(dw10, 8, 8); + + if (!alloc_len) { + return NVME_INVALID_FIELD | NVME_DNR; + } + + /* Generate the NVMe transport header */ + hdr =3D (StorageSpdmTransportHeader) { + .security_protocol =3D secp, + .security_protocol_specific =3D cpu_to_le16((spsp1 << 8) | spsp0), + .length =3D cpu_to_le32(alloc_len), + }; + + /* Forward if_recv to the SPDM Server with SPSP0 */ + spdm_res =3D spdm_socket_send(n->spdm_socket, SPDM_SOCKET_STORAGE_CMD_= IF_RECV, + SPDM_SOCKET_TRANSPORT_TYPE_NVME, + (uint8_t *)&hdr, sizeof(hdr)); + if (!spdm_res) { + return NVME_DATA_TRAS_ERROR | NVME_DNR; + } + + /* The responder shall ack with message status */ + recvd =3D spdm_socket_receive(n->spdm_socket, SPDM_SOCKET_TRANSPORT_TY= PE_NVME, + (uint8_t *)&nvme_cmd_status, + SPDM_SOCKET_MAX_MSG_STATUS_LEN); + if (recvd < SPDM_SOCKET_MAX_MSG_STATUS_LEN) { + return NVME_DATA_TRAS_ERROR | NVME_DNR; + } + + nvme_cmd_status =3D cpu_to_be16(nvme_cmd_status); + /* An error here implies the prior if_recv from requester was spurious= */ + if (nvme_cmd_status !=3D NVME_SUCCESS) { + return nvme_cmd_status; + } + + /* Clear to start receiving data from the server */ + rsp_spdm_buf =3D g_malloc0(alloc_len); + + recvd =3D spdm_socket_receive(n->spdm_socket, + SPDM_SOCKET_TRANSPORT_TYPE_NVME, + rsp_spdm_buf, alloc_len); + if (!recvd) { + return NVME_DATA_TRAS_ERROR | NVME_DNR; + } + + ret =3D nvme_c2h(n, rsp_spdm_buf, MIN(recvd, alloc_len), req); + if (ret) { + return ret; + } + + return NVME_SUCCESS; +} + +static uint16_t nvme_get_sec_prot_info(NvmeCtrl *n, NvmeRequest *req) +{ + uint32_t alloc_len =3D le32_to_cpu(req->cmd.cdw11); + uint8_t resp[10] =3D { + /* Support Security Protol List Length */ + [6] =3D 0, /* MSB */ + [7] =3D 2, /* LSB */ + /* Support Security Protocol List */ + [8] =3D SFSC_SECURITY_PROT_INFO, + [9] =3D NVME_SEC_PROT_DMTF_SPDM, + }; + + if (alloc_len < 10) { + return NVME_INVALID_FIELD | NVME_DNR; + } + + return nvme_c2h(n, resp, sizeof(resp), req); +} + +/* From controller to host */ +static uint16_t nvme_security_receive(NvmeCtrl *n, NvmeRequest *req) +{ + uint32_t dw10 =3D le32_to_cpu(req->cmd.cdw10); + uint16_t spsp =3D extract32(dw10, 8, 16); + uint8_t secp =3D extract32(dw10, 24, 8); + + switch (secp) { + case SFSC_SECURITY_PROT_INFO: + switch (spsp) { + case 0: + /* Supported security protocol list */ + return nvme_get_sec_prot_info(n, req); + case 1: + /* Certificate data */ + /* fallthrough */ + default: + return NVME_INVALID_FIELD | NVME_DNR; + } + case NVME_SEC_PROT_DMTF_SPDM: + return nvme_sec_prot_spdm_receive(n, req); + default: + return NVME_INVALID_FIELD | NVME_DNR; + } +} + static uint16_t nvme_directive_send(NvmeCtrl *n, NvmeRequest *req) { return NVME_INVALID_FIELD | NVME_DNR; @@ -7389,6 +7570,10 @@ static uint16_t nvme_admin_cmd(NvmeCtrl *n, NvmeRequ= est *req) return nvme_directive_send(n, req); case NVME_ADM_CMD_DIRECTIVE_RECV: return nvme_directive_receive(n, req); + case NVME_ADM_CMD_SECURITY_SEND: + return nvme_security_send(n, req); + case NVME_ADM_CMD_SECURITY_RECV: + return nvme_security_receive(n, req); default: g_assert_not_reached(); } @@ -8824,7 +9009,8 @@ static void nvme_init_ctrl(NvmeCtrl *n, PCIDevice *pc= i_dev) id->mdts =3D n->params.mdts; id->ver =3D cpu_to_le32(NVME_SPEC_VER); =20 - oacs =3D NVME_OACS_NMS | NVME_OACS_FORMAT | NVME_OACS_DIRECTIVES; + oacs =3D NVME_OACS_NMS | NVME_OACS_FORMAT | NVME_OACS_DIRECTIVES | + NVME_OACS_SECURITY; =20 if (n->params.dbcs) { oacs |=3D NVME_OACS_DBCS; diff --git a/hw/nvme/nvme.h b/hw/nvme/nvme.h index b5c9378ea4..67ed562e00 100644 --- a/hw/nvme/nvme.h +++ b/hw/nvme/nvme.h @@ -461,6 +461,8 @@ static inline const char *nvme_adm_opc_str(uint8_t opc) case NVME_ADM_CMD_DIRECTIVE_RECV: return "NVME_ADM_CMD_DIRECTIVE_REC= V"; case NVME_ADM_CMD_DBBUF_CONFIG: return "NVME_ADM_CMD_DBBUF_CONFIG"; case NVME_ADM_CMD_FORMAT_NVM: return "NVME_ADM_CMD_FORMAT_NVM"; + case NVME_ADM_CMD_SECURITY_SEND: return "NVME_ADM_CMD_SECURITY_SEND= "; + case NVME_ADM_CMD_SECURITY_RECV: return "NVME_ADM_CMD_SECURITY_RECV= "; default: return "NVME_ADM_CMD_UNKNOWN"; } } @@ -648,6 +650,9 @@ typedef struct NvmeCtrl { } next_pri_ctrl_cap; /* These override pri_ctrl_cap after reset */ uint32_t dn; /* Disable Normal */ NvmeAtomic atomic; + + /* Socket mapping to SPDM over NVMe Security In/Out commands */ + int spdm_socket; } NvmeCtrl; =20 typedef enum NvmeResetType { diff --git a/include/block/nvme.h b/include/block/nvme.h index 358e516e38..9fa2ecaf28 100644 --- a/include/block/nvme.h +++ b/include/block/nvme.h @@ -1779,6 +1779,21 @@ enum NvmeDirectiveOperations { NVME_DIRECTIVE_RETURN_PARAMS =3D 0x1, }; =20 +typedef enum SfscSecurityProtocol { + SFSC_SECURITY_PROT_INFO =3D 0x00, +} SfscSecurityProtocol; + +typedef enum NvmeSecurityProtocols { + NVME_SEC_PROT_DMTF_SPDM =3D 0xE8, +} NvmeSecurityProtocols; + +typedef enum SpdmOperationCodes { + SPDM_STORAGE_DISCOVERY =3D 0x1, /* Mandatory */ + SPDM_STORAGE_PENDING_INFO =3D 0x2, /* Optional */ + SPDM_STORAGE_MSG =3D 0x5, /* Mandatory */ + SPDM_STORAGE_SEC_MSG =3D 0x6, /* Optional */ +} SpdmOperationCodes; + typedef struct QEMU_PACKED NvmeFdpConfsHdr { uint16_t num_confs; uint8_t version; --=20 2.51.0