/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef ME_H #define ME_H #include <inttypes.h> #include <pci/pci.h> #define ME_RETRY 100000 /* 1 second */ #define ME_DELAY 10 /* 10 us */ #pragma pack(1) /* * Management Engine PCI registers */ #define PCI_ME_HFS 0x40 #define ME_HFS_CWS_RESET 0 #define ME_HFS_CWS_INIT 1 #define ME_HFS_CWS_REC 2 #define ME_HFS_CWS_TEST 3 #define ME_HFS_CWS_DISABLED 4 #define ME_HFS_CWS_NORMAL 5 #define ME_HFS_CWS_WAIT 6 #define ME_HFS_CWS_TRANS 7 #define ME_HFS_CWS_INVALID 8 #define ME_HFS_STATE_PREBOOT 0 #define ME_HFS_STATE_M0_UMA 1 #define ME_HFS_STATE_M3 4 #define ME_HFS_STATE_M0 5 #define ME_HFS_STATE_BRINGUP 6 #define ME_HFS_STATE_ERROR 7 #define ME_HFS_ERROR_NONE 0 #define ME_HFS_ERROR_UNCAT 1 #define ME_HFS_ERROR_DISABLED 2 #define ME_HFS_ERROR_IMAGE 3 #define ME_HFS_ERROR_DEBUG 4 #define ME_HFS_MODE_NORMAL 0 #define ME_HFS_MODE_DEBUG 2 #define ME_HFS_MODE_DIS 3 #define ME_HFS_MODE_OVER_JMPR 4 #define ME_HFS_MODE_OVER_MEI 5 #define ME_HFS_BIOS_DRAM_ACK 1 #define ME_HFS_ACK_NO_DID 0 #define ME_HFS_ACK_RESET 1 #define ME_HFS_ACK_PWR_CYCLE 2 #define ME_HFS_ACK_S3 3 #define ME_HFS_ACK_S4 4 #define ME_HFS_ACK_S5 5 #define ME_HFS_ACK_GBL_RESET 6 #define ME_HFS_ACK_CONTINUE 7 struct me_hfs { uint32_t working_state: 4; uint32_t mfg_mode: 1; uint32_t fpt_bad: 1; uint32_t operation_state: 3; uint32_t fw_init_complete: 1; uint32_t ft_bup_ld_flr: 1; uint32_t update_in_progress: 1; uint32_t error_code: 4; uint32_t operation_mode: 4; uint32_t reserved: 4; uint32_t boot_options_present: 1; uint32_t ack_data: 3; uint32_t bios_msg_ack: 4; } __attribute__((packed)); #define PCI_ME_UMA 0x44 struct me_uma { uint32_t size: 6; uint32_t reserved_1: 10; uint32_t valid: 1; uint32_t reserved_0: 14; uint32_t set_to_one: 1; } __attribute__((packed)); #define PCI_ME_H_GS 0x4c #define ME_INIT_DONE 1 #define ME_INIT_STATUS_SUCCESS 0 #define ME_INIT_STATUS_NOMEM 1 #define ME_INIT_STATUS_ERROR 2 struct me_did { uint32_t uma_base: 16; uint32_t reserved: 8; uint32_t status: 4; uint32_t init_done: 4; } __attribute__((packed)); #define PCI_ME_GMES 0x48 #define ME_GMES_PHASE_ROM 0 #define ME_GMES_PHASE_BUP 1 #define ME_GMES_PHASE_UKERNEL 2 #define ME_GMES_PHASE_POLICY 3 #define ME_GMES_PHASE_MODULE 4 #define ME_GMES_PHASE_UNKNOWN 5 #define ME_GMES_PHASE_HOST 6 struct me_gmes { uint32_t bist_in_prog : 1; uint32_t icc_prog_sts : 2; uint32_t invoke_mebx : 1; uint32_t cpu_replaced_sts : 1; uint32_t mbp_rdy : 1; uint32_t mfs_failure : 1; uint32_t warm_rst_req_for_df : 1; uint32_t cpu_replaced_valid : 1; uint32_t reserved_1 : 2; uint32_t fw_upd_ipu : 1; uint32_t reserved_2 : 4; uint32_t current_state: 8; uint32_t current_pmevent: 4; uint32_t progress_code: 4; } __attribute__((packed)); #define PCI_ME_HERES 0xbc #define PCI_ME_EXT_SHA1 0x00 #define PCI_ME_EXT_SHA256 0x02 #define PCI_ME_HER(x) (0xc0+(4*(x))) struct me_heres { uint32_t extend_reg_algorithm: 4; uint32_t reserved: 26; uint32_t extend_feature_present: 1; uint32_t extend_reg_valid: 1; } __attribute__((packed)); struct me_thermal_reporting { uint32_t polling_timeout: 8; uint32_t smbus_ec_msglen: 8; uint32_t smbus_ec_msgpec: 8; uint32_t dimmnumber: 8; } __attribute__((packed)); /* * Management Engine MEI registers */ #define MEI_H_CB_WW 0x00 #define MEI_H_CSR 0x04 #define MEI_ME_CB_RW 0x08 #define MEI_ME_CSR_HA 0x0c struct mei_csr { uint32_t interrupt_enable: 1; uint32_t interrupt_status: 1; uint32_t interrupt_generate: 1; uint32_t ready: 1; uint32_t reset: 1; uint32_t reserved: 3; uint32_t buffer_read_ptr: 8; uint32_t buffer_write_ptr: 8; uint32_t buffer_depth: 8; } __attribute__((packed)); #define MEI_ADDRESS_HBM 0x00 #define MEI_ADDRESS_CORE_WD 0x01 #define MEI_ADDRESS_AMT 0x02 #define MEI_ADDRESS_RESERVED 0x03 #define MEI_ADDRESS_WDT 0x04 #define MEI_ADDRESS_POLICY 0x05 #define MEI_ADDRESS_PASSWORD 0x06 #define MEI_ADDRESS_MKHI 0x07 #define MEI_ADDRESS_ICC 0x08 #define MEI_ADDRESS_THERMAL 0x09 #define MEI_ADDRESS_SPI 0x0a #define MEI_HOST_ADDRESS 0 struct mei_header { uint32_t client_address: 8; uint32_t host_address: 8; uint32_t length: 9; uint32_t reserved: 6; uint32_t is_complete: 1; } __attribute__((packed)); #define MKHI_GROUP_ID_CBM 0x00 #define MKHI_GROUP_ID_PM 0x01 #define MKHI_GROUP_ID_PWD 0x02 #define MKHI_GROUP_ID_FWCAPS 0x03 #define MKHI_GROUP_ID_APP 0x04 #define MKHI_GROUP_ID_SPI 0x05 #define MKHI_GROUP_ID_MDES 0x08 #define MKHI_GROUP_ID_MAX 0x09 #define MKHI_GROUP_ID_GEN 0xff #define MKHI_FWCAPS_GET_RULE 0x02 #define MKHI_FWCAPS_SET_RULE 0x03 #define MKHI_GLOBAL_RESET 0x0b #define GEN_GET_MKHI_VERSION 0x01 #define GEN_GET_FW_VERSION 0x02 #define GEN_UNCONFIG_NO_PWD 0x0d #define GEN_SET_DEBUG_MEM 0x11 #define FWCAPS_ME_FWU_RULE 0x2e #define FWCAPS_OVERRIDE 0x14 #define MKHI_THERMAL_REPORTING 0x00 #define MKHI_GET_FW_VERSION 0x02 #define MKHI_MDES_ENABLE 0x09 #define MKHI_END_OF_POST 0x0c #define MKHI_FEATURE_OVERRIDE 0x14 #define HBM_HOST_START_REQ_CMD 0x01 #define HBM_HOST_STOP_REQ_CMD 0x02 #define HBM_ME_STOP_REQ_CMD 0x03 #define HBM_HOST_ENUM_REQ_CMD 0x04 #define HBM_HOST_CLIENT_PROPERTIES_REQ_CMD 0x05 #define HBM_CLIENT_CONNECT_REQ_CMD 0x06 #define HBM_CLIENT_DISCONNECT_REQ_CMD 0x07 struct mkhi_header { uint32_t group_id: 8; uint32_t command: 7; uint32_t is_response: 1; uint32_t reserved: 8; uint32_t result: 8; } __attribute__((packed)); struct me_fw_version { uint16_t code_minor; uint16_t code_major; uint16_t code_build_number; uint16_t code_hot_fix; uint16_t recovery_minor; uint16_t recovery_major; uint16_t recovery_build_number; uint16_t recovery_hot_fix; uint16_t fitcminor; uint16_t fitcmajor; uint16_t fitcbuildno; uint16_t fitchotfix; } __attribute__((packed)); #define HECI_EOP_STATUS_SUCCESS 0x0 #define HECI_EOP_PERFORM_GLOBAL_RESET 0x1 #define CBM_RR_GLOBAL_RESET 0x01 #define GLOBAL_RESET_BIOS_MRC 0x01 #define GLOBAL_RESET_BIOS_POST 0x02 #define GLOBAL_RESET_MEBX 0x03 struct me_global_reset { uint8_t request_origin; uint8_t reset_type; } __attribute__((packed)); typedef enum { ME_NORMAL_BIOS_PATH, ME_S3WAKE_BIOS_PATH, ME_ERROR_BIOS_PATH, ME_RECOVERY_BIOS_PATH, ME_DISABLE_BIOS_PATH, ME_FIRMWARE_UPDATE_BIOS_PATH, } me_bios_path; typedef struct { uint32_t major_version : 16; uint32_t minor_version : 16; uint32_t hotfix_version : 16; uint32_t build_version : 16; } __attribute__((packed)) mbp_fw_version_name; typedef struct { uint8_t num_icc_profiles; uint8_t icc_profile_soft_strap; uint8_t icc_profile_index; uint8_t reserved; uint32_t register_lock_mask[3]; } __attribute__((packed)) mbp_icc_profile; typedef struct { uint32_t full_net : 1; uint32_t std_net : 1; uint32_t manageability : 1; uint32_t small_business : 1; uint32_t l3manageability : 1; uint32_t intel_at : 1; uint32_t intel_cls : 1; uint32_t reserved : 3; uint32_t intel_mpc : 1; uint32_t icc_over_clocking : 1; uint32_t pavp : 1; uint32_t reserved_1 : 4; uint32_t ipv6 : 1; uint32_t kvm : 1; uint32_t och : 1; uint32_t vlan : 1; uint32_t tls : 1; uint32_t reserved_4 : 1; uint32_t wlan : 1; uint32_t reserved_5 : 8; } __attribute__((packed)) mefwcaps_sku; typedef struct { uint16_t lock_state : 1; uint16_t authenticate_module : 1; uint16_t s3authentication : 1; uint16_t flash_wear_out : 1; uint16_t flash_variable_security : 1; uint16_t wwan3gpresent : 1; uint16_t wwan3goob : 1; uint16_t reserved : 9; } __attribute__((packed)) tdt_state_flag; typedef struct { uint8_t state; uint8_t last_theft_trigger; tdt_state_flag flags; } __attribute__((packed)) tdt_state_info; typedef struct { uint32_t platform_target_usage_type : 4; uint32_t platform_target_market_type : 2; uint32_t super_sku : 1; uint32_t reserved : 1; uint32_t intel_me_fw_image_type : 4; uint32_t platform_brand : 4; uint32_t reserved_1 : 16; } __attribute__((packed)) platform_type_rule_data; typedef struct { mefwcaps_sku fw_capabilities; uint8_t available; } mbp_fw_caps; typedef struct { uint16_t device_id; uint16_t fuse_test_flags; uint32_t umchid[4]; } __attribute__((packed)) mbp_rom_bist_data; typedef struct { uint32_t key[8]; } mbp_platform_key; typedef struct { platform_type_rule_data rule_data; uint8_t available; } mbp_plat_type; typedef struct { mbp_fw_version_name fw_version_name; mbp_fw_caps fw_caps_sku; mbp_rom_bist_data rom_bist_data; mbp_platform_key platform_key; mbp_plat_type fw_plat_type; mbp_icc_profile icc_profile; tdt_state_info at_state; uint32_t mfsintegrity; } me_bios_payload; typedef struct { uint32_t mbp_size : 8; uint32_t num_entries : 8; uint32_t rsvd : 16; } __attribute__((packed)) mbp_header; typedef struct { uint32_t app_id : 8; uint32_t item_id : 8; uint32_t length : 8; uint32_t rsvd : 8; } __attribute__((packed)) mbp_item_header; struct me_fwcaps { uint32_t id; uint8_t length; mefwcaps_sku caps_sku; uint8_t reserved[3]; } __attribute__((packed)); struct me_debug_mem { uint32_t debug_phys; uint32_t debug_size; uint32_t me_phys; uint32_t me_size; } __attribute__((packed)); void intel_me_status(uint32_t hfs, uint32_t gmes); void mkhi_thermal(void); uint32_t intel_mei_setup(struct pci_dev *dev); void intel_mei_unmap(void); int mkhi_get_fwcaps(void); int mkhi_get_fw_version(int *major, int *minor); int mkhi_debug_me_memory(void *addr); void mei_reset(void); int intel_me_extend_valid(struct pci_dev *dev); #endif