/* SPDX-License-Identifier: GPL-2.0-only */ #include #include #include #include #include #include #include #include #include #include /* HFSTS1[3:0] Current Working State Values */ static const char *const me_cws_values[] = { [ME_HFS_CWS_RESET] = "Reset", [ME_HFS_CWS_INIT] = "Initializing", [ME_HFS_CWS_REC] = "Recovery", [3] = "Unknown (3)", [4] = "Unknown (4)", [ME_HFS_CWS_NORMAL] = "Normal", [ME_HFS_CWS_WAIT] = "Platform Disable Wait", [ME_HFS_CWS_TRANS] = "OP State Transition", [ME_HFS_CWS_INVALID] = "Invalid CPU Plugged In", [9] = "Unknown (9)", [10] = "Unknown (10)", [11] = "Unknown (11)", [12] = "Unknown (12)", [13] = "Unknown (13)", [14] = "Unknown (14)", [15] = "Unknown (15)", }; /* HFSTS1[8:6] Current Operation State Values */ static const char *const me_opstate_values[] = { [ME_HFS_STATE_PREBOOT] = "Preboot", [ME_HFS_STATE_M0_UMA] = "M0 with UMA", [ME_HFS_STATE_M3] = "M3 without UMA", [ME_HFS_STATE_M0] = "M0 without UMA", [ME_HFS_STATE_BRINGUP] = "Bring up", [ME_HFS_STATE_ERROR] = "M0 without UMA but with error" }; /* HFSTS1[19:16] Current Operation Mode Values */ static const char *const me_opmode_values[] = { [ME_HFS_MODE_NORMAL] = "Normal", [ME_HFS_MODE_DEBUG] = "Debug", [ME_HFS_MODE_DIS] = "Soft Temporary Disable", [ME_HFS_MODE_OVER_JMPR] = "Security Override via Jumper", [ME_HFS_MODE_OVER_MEI] = "Security Override via MEI Message" }; /* HFSTS1[15:12] Error Code Values */ static const char *const me_error_values[] = { [ME_HFS_ERROR_NONE] = "No Error", [ME_HFS_ERROR_UNCAT] = "Uncategorized Failure", [ME_HFS_ERROR_IMAGE] = "Image Failure", [ME_HFS_ERROR_DEBUG] = "Debug Failure" }; /* HFSTS2[31:28] ME Progress Code */ static const char *const me_progress_values[] = { [ME_HFS2_PHASE_ROM] = "ROM Phase", [1] = "Unknown (1)", [ME_HFS2_PHASE_UKERNEL] = "uKernel Phase", [ME_HFS2_PHASE_BUP] = "BUP Phase", [4] = "Unknown (4)", [5] = "Unknown (5)", [ME_HFS2_PHASE_HOST_COMM] = "Host Communication", [7] = "Unknown (7)", [8] = "Unknown (8)" }; /* HFSTS2[27:24] Power Management Event */ static const char *const me_pmevent_values[] = { [ME_HFS2_PMEVENT_CLEAN_MOFF_MX_WAKE] = "Clean Moff->Mx wake", [ME_HFS2_PMEVENT_MOFF_MX_WAKE_ERROR] = "Moff->Mx wake after an error", [ME_HFS2_PMEVENT_CLEAN_GLOBAL_RESET] = "Clean global reset", [ME_HFS2_PMEVENT_CLEAN_GLOBAL_RESET_ERROR] = "Global reset after an error", [ME_HFS2_PMEVENT_CLEAN_ME_RESET] = "Clean Intel ME reset", [ME_HFS2_PMEVENT_ME_RESET_EXCEPTION] = "Intel ME reset due to exception", [ME_HFS2_PMEVENT_PSEUDO_ME_RESET] = "Pseudo-global reset", [ME_HFS2_PMEVENT_CM0_CM3] = "CM0->CM3", [ME_HFS2_PMEVENT_CM3_CM0] = "CM3->CM0", [ME_HFS2_PMEVENT_NON_PWR_CYCLE_RESET] = "Non-power cycle reset", [ME_HFS2_PMEVENT_PWR_CYCLE_RESET_M3] = "Power cycle reset through M3", [ME_HFS2_PMEVENT_PWR_CYCLE_RESET_MOFF] = "Power cycle reset through Moff", [ME_HFS2_PMEVENT_CMX_CMOFF] = "Cx/Mx->Cx/Moff", [ME_HFS2_PMEVENT_CM0_CM0PG] = "CM0->CM0PG", [ME_HFS2_PMEVENT_CM3_CM3PG] = "CM3->CM3PG", [ME_HFS2_PMEVENT_CM0PG_CM0] = "CM0PG->CM0" }; /* Progress Code 0 states */ static const char *const me_progress_rom_values[] = { [ME_HFS2_STATE_ROM_BEGIN] = "BEGIN", [ME_HFS2_STATE_ROM_DISABLE] = "DISABLE" }; /* Progress Code 1 states */ static const char *const me_progress_bup_values[] = { [ME_HFS2_STATE_BUP_INIT] = "Initialization starts", [ME_HFS2_STATE_BUP_DIS_HOST_WAKE] = "Disable the host wake event", [ME_HFS2_STATE_BUP_CG_ENABLE] = "Enabling CG for cset", [ME_HFS2_STATE_BUP_PM_HND_EN] = "Enabling PM handshaking", [ME_HFS2_STATE_BUP_FLOW_DET] = "Flow determination start process", [ME_HFS2_STATE_BUP_PMC_PATCHING] = "PMC Patching process", [ME_HFS2_STATE_BUP_GET_FLASH_VSCC] = "Get VSCC params", [ME_HFS2_STATE_BUP_SET_FLASH_VSCC] = "Set VSCC params", [ME_HFS2_STATE_BUP_VSCC_ERR] = "Error reading/matching the VSCC table in the descriptor", [ME_HFS2_STATE_BUP_EFSS_INIT] = "Initialize EFFS", [ME_HFS2_STATE_BUP_CHECK_STRAP] = "Check to see if straps say ME DISABLED", [ME_HFS2_STATE_BUP_PWR_OK_TIMEOUT] = "Timeout waiting for PWROK", [ME_HFS2_STATE_BUP_STRAP_DIS] = "EFFS says ME disabled", [ME_HFS2_STATE_BUP_MANUF_OVRD_STRAP] = "Possibly handle BUP manufacturing override strap", [ME_HFS2_STATE_BUP_M3] = "Bringup in M3", [ME_HFS2_STATE_BUP_M0] = "Bringup in M0", [ME_HFS2_STATE_BUP_FLOW_DET_ERR] = "Flow detection error", [ME_HFS2_STATE_BUP_M3_CLK_ERR] = "M3 clock switching error", [ME_HFS2_STATE_BUP_CPU_RESET_DID_TIMEOUT_MEM_MISSING] = "Host error - CPU reset timeout, DID timeout, memory missing", [ME_HFS2_STATE_BUP_M3_KERN_LOAD] = "M3 kernel load", [ME_HFS2_STATE_BUP_T32_MISSING] = "T34 missing - cannot program ICC", [ME_HFS2_STATE_BUP_WAIT_DID] = "Waiting for DID BIOS message", [ME_HFS2_STATE_BUP_WAIT_DID_FAIL] = "Waiting for DID BIOS message failure", [ME_HFS2_STATE_BUP_DID_NO_FAIL] = "DID reported no error", [ME_HFS2_STATE_BUP_ENABLE_UMA] = "Enabling UMA", [ME_HFS2_STATE_BUP_ENABLE_UMA_ERR] = "Enabling UMA error", [ME_HFS2_STATE_BUP_SEND_DID_ACK] = "Sending DID Ack to BIOS", [ME_HFS2_STATE_BUP_SEND_DID_ACK_ERR] = "Sending DID Ack to BIOS error", [ME_HFS2_STATE_BUP_M0_CLK] = "Switching clocks in M0", [ME_HFS2_STATE_BUP_M0_CLK_ERR] = "Switching clocks in M0 error", [ME_HFS2_STATE_BUP_TEMP_DIS] = "ME in temp disable", [ME_HFS2_STATE_BUP_M0_KERN_LOAD] = "M0 kernel load", }; void intel_me_status(void) { union me_hfsts1 hfs1; union me_hfsts2 hfs2; union me_hfsts3 hfs3; union me_hfsts6 hfs6; if (!is_cse_enabled()) return; hfs1.data = me_read_config32(PCI_ME_HFSTS1); hfs2.data = me_read_config32(PCI_ME_HFSTS2); hfs3.data = me_read_config32(PCI_ME_HFSTS3); hfs6.data = me_read_config32(PCI_ME_HFSTS6); printk(BIOS_DEBUG, "ME: Host Firmware Status Register 1 : 0x%08X\n", hfs1.data); printk(BIOS_DEBUG, "ME: Host Firmware Status Register 2 : 0x%08X\n", hfs2.data); printk(BIOS_DEBUG, "ME: Host Firmware Status Register 3 : 0x%08X\n", hfs3.data); printk(BIOS_DEBUG, "ME: Host Firmware Status Register 4 : 0x%08X\n", me_read_config32(PCI_ME_HFSTS4)); printk(BIOS_DEBUG, "ME: Host Firmware Status Register 5 : 0x%08X\n", me_read_config32(PCI_ME_HFSTS5)); printk(BIOS_DEBUG, "ME: Host Firmware Status Register 6 : 0x%08X\n", hfs6.data); /* Check Current States */ printk(BIOS_DEBUG, "ME: FW Partition Table : %s\n", hfs1.fields.fpt_bad ? "BAD" : "OK"); printk(BIOS_DEBUG, "ME: Bringup Loader Failure : %s\n", hfs1.fields.ft_bup_ld_flr ? "YES" : "NO"); printk(BIOS_DEBUG, "ME: Firmware Init Complete : %s\n", hfs1.fields.fw_init_complete ? "YES" : "NO"); printk(BIOS_DEBUG, "ME: Manufacturing Mode : %s\n", hfs1.fields.mfg_mode ? "YES" : "NO"); printk(BIOS_DEBUG, "ME: Boot Options Present : %s\n", hfs1.fields.boot_options_present ? "YES" : "NO"); printk(BIOS_DEBUG, "ME: Update In Progress : %s\n", hfs1.fields.update_in_progress ? "YES" : "NO"); printk(BIOS_DEBUG, "ME: D3 Support : %s\n", hfs1.fields.d3_support_valid ? "YES" : "NO"); printk(BIOS_DEBUG, "ME: D0i3 Support : %s\n", hfs1.fields.d0i3_support_valid ? "YES" : "NO"); printk(BIOS_DEBUG, "ME: Low Power State Enabled : %s\n", hfs2.fields.low_power_state ? "YES" : "NO"); printk(BIOS_DEBUG, "ME: CPU Replaced : %s\n", hfs2.fields.cpu_replaced_sts ? "YES" : "NO"); printk(BIOS_DEBUG, "ME: CPU Replacement Valid : %s\n", hfs2.fields.cpu_replaced_valid ? "YES" : "NO"); printk(BIOS_DEBUG, "ME: Current Working State : %s\n", me_cws_values[hfs1.fields.working_state]); printk(BIOS_DEBUG, "ME: Current Operation State : %s\n", me_opstate_values[hfs1.fields.operation_state]); printk(BIOS_DEBUG, "ME: Current Operation Mode : %s\n", me_opmode_values[hfs1.fields.operation_mode]); printk(BIOS_DEBUG, "ME: Error Code : %s\n", me_error_values[hfs1.fields.error_code]); printk(BIOS_DEBUG, "ME: Progress Phase : %s\n", me_progress_values[hfs2.fields.progress_code]); printk(BIOS_DEBUG, "ME: Power Management Event : %s\n", me_pmevent_values[hfs2.fields.current_pmevent]); printk(BIOS_DEBUG, "ME: Progress Phase State : "); switch (hfs2.fields.progress_code) { case ME_HFS2_PHASE_ROM: /* ROM Phase */ if (hfs2.fields.current_state < ARRAY_SIZE(me_progress_rom_values) && me_progress_rom_values[hfs2.fields.current_state]) printk(BIOS_DEBUG, "%s", me_progress_rom_values[ hfs2.fields.current_state]); else printk(BIOS_DEBUG, "0x%02x", hfs2.fields.current_state); break; case ME_HFS2_PHASE_UKERNEL: /* uKernel Phase */ printk(BIOS_DEBUG, "0x%02x", hfs2.fields.current_state); break; case ME_HFS2_PHASE_BUP: /* Bringup Phase */ if (hfs2.fields.current_state < ARRAY_SIZE(me_progress_bup_values) && me_progress_bup_values[hfs2.fields.current_state]) printk(BIOS_DEBUG, "%s", me_progress_bup_values[ hfs2.fields.current_state]); else printk(BIOS_DEBUG, "0x%02x", hfs2.fields.current_state); break; case ME_HFS2_PHASE_HOST_COMM: /* Host Communication Phase */ if (!hfs2.fields.current_state) printk(BIOS_DEBUG, "Host communication established"); else printk(BIOS_DEBUG, "0x%02x", hfs2.fields.current_state); break; default: printk(BIOS_DEBUG, "Unknown phase: 0x%02x state: 0x%02x", hfs2.fields.progress_code, hfs2.fields.current_state); } printk(BIOS_DEBUG, "\n"); /* Power Down Mitigation Status */ printk(BIOS_DEBUG, "ME: Power Down Mitigation : %s\n", hfs3.fields.power_down_mitigation ? "YES" : "NO"); if (hfs3.fields.power_down_mitigation) { printk(BIOS_INFO, "ME: PD Mitigation State : "); if (hfs3.fields.encrypt_key_override == 1 && hfs3.fields.encrypt_key_check == 0 && hfs3.fields.pch_config_change == 0) printk(BIOS_INFO, "Normal Operation"); else if (hfs3.fields.encrypt_key_override == 1 && hfs3.fields.encrypt_key_check == 1 && hfs3.fields.pch_config_change == 0) printk(BIOS_INFO, "Issue Detected and Recovered"); else printk(BIOS_INFO, "Issue Detected but not Recovered"); printk(BIOS_INFO, "\n"); printk(BIOS_DEBUG, "ME: Encryption Key Override : %s\n", hfs3.fields.encrypt_key_override ? "Workaround Applied" : "Unable to override"); printk(BIOS_DEBUG, "ME: Encryption Key Check : %s\n", hfs3.fields.encrypt_key_check ? "FAIL" : "PASS"); printk(BIOS_DEBUG, "ME: PCH Configuration Info : %s\n", hfs3.fields.pch_config_change ? "Changed" : "No Change"); printk(BIOS_DEBUG, "ME: Firmware SKU : "); switch (hfs3.fields.fw_sku) { case ME_HFS3_FW_SKU_CONSUMER: printk(BIOS_DEBUG, "Consumer\n"); break; case ME_HFS3_FW_SKU_CORPORATE: printk(BIOS_DEBUG, "Corporate\n"); break; default: printk(BIOS_DEBUG, "Unknown (0x%x)\n", hfs3.fields.fw_sku); } } printk(BIOS_DEBUG, "ME: FPF status : "); switch (hfs6.fields.fpf_nvars) { case ME_HFS6_FPF_NOT_COMMITTED: printk(BIOS_DEBUG, "unfused\n"); break; case ME_HFS6_FPF_ERROR: printk(BIOS_DEBUG, "unknown\n"); break; default: printk(BIOS_DEBUG, "fused\n"); } } int send_global_reset(void) { int status = -1; union me_hfsts1 hfs1; if (!is_cse_enabled()) goto ret; /* Check ME operating mode */ hfs1.data = me_read_config32(PCI_ME_HFSTS1); if (hfs1.fields.operation_mode) goto ret; /* ME should be in Normal Mode for this command */ status = cse_request_global_reset(GLOBAL_RESET); ret: return status; } /* * This can't be put in intel_me_status because by the time control * reaches there, ME doesn't respond to GET_FW_VERSION command. */ BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_EXIT, print_me_fw_version, NULL);