diff options
| -rw-r--r-- | src/soc/intel/cannonlake/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/intel/cannonlake/finalize.c | 3 | ||||
| -rw-r--r-- | src/soc/intel/cannonlake/include/soc/me.h | 21 | ||||
| -rw-r--r-- | src/soc/intel/cannonlake/me.c | 299 |
4 files changed, 324 insertions, 0 deletions
diff --git a/src/soc/intel/cannonlake/Makefile.inc b/src/soc/intel/cannonlake/Makefile.inc index 7ad0c7c82c..13289448b6 100644 --- a/src/soc/intel/cannonlake/Makefile.inc +++ b/src/soc/intel/cannonlake/Makefile.inc @@ -43,6 +43,7 @@ ramstage-y += gspi.c ramstage-y += i2c.c ramstage-y += lockdown.c ramstage-y += lpc.c +ramstage-y += me.c ramstage-y += memmap.c ramstage-y += nhlt.c ramstage-y += p2sb.c diff --git a/src/soc/intel/cannonlake/finalize.c b/src/soc/intel/cannonlake/finalize.c index 4dfd15bc4a..eb4c5c2c9d 100644 --- a/src/soc/intel/cannonlake/finalize.c +++ b/src/soc/intel/cannonlake/finalize.c @@ -26,6 +26,7 @@ #include <intelblocks/tco.h> #include <reg_script.h> #include <spi-generic.h> +#include <soc/me.h> #include <soc/p2sb.h> #include <soc/pci_devs.h> #include <soc/pcr_ids.h> @@ -94,6 +95,8 @@ static void soc_finalize(void *unused) { printk(BIOS_DEBUG, "Finalizing chipset.\n"); + dump_me_status(); + pch_finalize(); printk(BIOS_DEBUG, "Finalizing SMM.\n"); diff --git a/src/soc/intel/cannonlake/include/soc/me.h b/src/soc/intel/cannonlake/include/soc/me.h new file mode 100644 index 0000000000..1d782c153c --- /dev/null +++ b/src/soc/intel/cannonlake/include/soc/me.h @@ -0,0 +1,21 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Google LLC + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _CANNONLAKE_ME_H_ +#define _CANNONLAKE_ME_H_ + +void dump_me_status(void); + +#endif /* _CANNONLAKE_ME_H_ */ diff --git a/src/soc/intel/cannonlake/me.c b/src/soc/intel/cannonlake/me.c new file mode 100644 index 0000000000..3fedc6374e --- /dev/null +++ b/src/soc/intel/cannonlake/me.c @@ -0,0 +1,299 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Google LLC. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <device/pci_ops.h> +#include <bootstate.h> +#include <commonlib/helpers.h> +#include <console/console.h> +#include <device/pci.h> +#include <intelblocks/cse.h> +#include <soc/me.h> +#include <soc/pci_devs.h> +#include <stdint.h> +#include <stdlib.h> + +/* Miscellaneous constants */ +enum { + MKHI_GEN_GROUP_ID = 0xFF, + MKHI_GET_FW_VERSION = 0x02, + ME_OPMODE_NORMAL = 0x00, + ME_WSTATE_NORMAL = 0x05, +}; + +/* HFSTS register offsets in PCI config space */ +enum { + PCI_ME_HFSTS1 = 0x40, + PCI_ME_HFSTS2 = 0x48, + PCI_ME_HFSTS3 = 0x60, + PCI_ME_HFSTS4 = 0x64, + PCI_ME_HFSTS5 = 0x68, + PCI_ME_HFSTS6 = 0x6C, +}; + +/* Host Firmware Status Register 1 */ +union hfsts1 { + uint32_t raw; + struct { + 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 fw_upd_in_progress : 1; + uint32_t error_code : 4; + uint32_t operation_mode : 4; + uint32_t reset_count : 4; + uint32_t boot_options : 1; + uint32_t rsvd0 : 1; + uint32_t bist_state : 1; + uint32_t bist_reset_req : 1; + uint32_t power_source : 2; + uint32_t reserved1 : 1; + uint32_t d0i3_support_valid : 1; + } __packed fields; +}; + +/* Host Firmware Status Register 2 */ +union hfsts2 { + uint32_t raw; + struct { + uint32_t nftp_load_failure : 1; + uint32_t icc_prog_status : 2; + uint32_t invoke_mebx : 1; + uint32_t cpu_replaced : 1; + uint32_t rsvd0 : 1; + uint32_t mfs_failure : 1; + uint32_t warm_reset_rqst : 1; + uint32_t cpu_replaced_valid : 1; + uint32_t low_power_state : 1; + uint32_t me_power_gate : 1; + uint32_t ipu_needed : 1; + uint32_t forced_safe_boot : 1; + uint32_t rsvd1 : 2; + uint32_t listener_change : 1; + uint32_t status_data : 8; + uint32_t current_pmevent : 4; + uint32_t phase : 4; + } __packed fields; +}; + +/* Host Firmware Status Register 3 */ +union hfsts3 { + uint32_t raw; +}; + +/* Host Firmware Status Register 4 */ +union hfsts4 { + uint32_t raw; + struct { + uint32_t rsvd0 : 9; + uint32_t enforcement_flow : 1; + uint32_t sx_resume_type : 1; + uint32_t rsvd1 : 1; + uint32_t tpms_disconnected : 1; + uint32_t rvsd2 : 1; + uint32_t fwsts_valid : 1; + uint32_t boot_guard_self_test : 1; + uint32_t rsvd3 : 16; + } __packed fields; +}; + +/* Host Firmware Status Register 5 */ +union hfsts5 { + uint32_t raw; + struct { + uint32_t acm_active : 1; + uint32_t valid : 1; + uint32_t result_code_source : 1; + uint32_t error_status_code : 5; + uint32_t acm_done_sts : 1; + uint32_t timeout_count : 7; + uint32_t scrtm_indicator : 1; + uint32_t inc_boot_guard_acm : 4; + uint32_t inc_key_manifest : 4; + uint32_t inc_boot_policy : 4; + uint32_t rsvd0 : 2; + uint32_t start_enforcement : 1; + } __packed fields; +}; + +/* Host Firmware Status Register 6 */ +union hfsts6 { + uint32_t raw; + struct { + uint32_t force_boot_guard_acm : 1; + uint32_t cpu_debug_disable : 1; + uint32_t bsp_init_disable : 1; + uint32_t protect_bios_env : 1; + uint32_t rsvd0 : 2; + uint32_t error_enforce_policy : 2; + uint32_t measured_boot : 1; + uint32_t verified_boot : 1; + uint32_t boot_guard_acmsvn : 4; + uint32_t kmsvn : 4; + uint32_t bpmsvn : 4; + uint32_t key_manifest_id : 4; + uint32_t boot_policy_status : 1; + uint32_t error : 1; + uint32_t boot_guard_disable : 1; + uint32_t fpf_disable : 1; + uint32_t fpf_soc_lock : 1; + uint32_t txt_support : 1; + } __packed fields; +}; + +static uint32_t me_read_config32(int offset) +{ + return pci_read_config32(PCH_DEV_CSE, offset); +} + +/* + * From reading the documentation, this should work for both WHL and CML + * platforms. Also, calling this function from dump_me_status() does not + * work, as the ME does not respond and the command times out. + */ +static void print_me_version(void *unused) +{ + struct mkhi_hdr { + uint8_t group_id; + uint8_t command :7; + uint8_t is_resp :1; + uint8_t rsvd; + uint8_t result; + } __packed; + + struct version { + uint16_t minor; + uint16_t major; + uint16_t build; + uint16_t hotfix; + } __packed; + + struct fw_ver_resp { + struct mkhi_hdr hdr; + struct version code; + struct version rec; + struct version fitc; + } __packed; + + union hfsts1 hfsts1; + const struct mkhi_hdr fw_ver_msg = { + .group_id = MKHI_GEN_GROUP_ID, + .command = MKHI_GET_FW_VERSION, + }; + struct fw_ver_resp resp; + size_t resp_size = sizeof(resp); + + /* Ignore if UART debugging is disabled */ + if (!CONFIG(CONSOLE_SERIAL)) + return; + + hfsts1.raw = me_read_config32(PCI_ME_HFSTS1); + + /* + * Prerequisites: + * 1) HFSTS1 Current Working State is Normal + * 2) HFSTS1 Current Operation Mode is Normal + * 3) It's after DRAM INIT DONE message (taken care of by calling it + * during ramstage + */ + if ((hfsts1.fields.working_state != ME_WSTATE_NORMAL) || + (hfsts1.fields.operation_mode != ME_OPMODE_NORMAL)) + goto fail; + + heci_reset(); + + if (!heci_send(&fw_ver_msg, sizeof(fw_ver_msg), BIOS_HOST_ADDR, + HECI_MKHI_ADDR)) + goto fail; + + if (!heci_receive(&resp, &resp_size)) + goto fail; + + if (resp.hdr.result) + goto fail; + + printk(BIOS_DEBUG, "ME: Version: %d.%d.%d.%d\n", resp.code.major, + resp.code.minor, resp.code.hotfix, resp.code.build); + return; + +fail: + printk(BIOS_DEBUG, "ME: Version: Unavailable\n"); +} +BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_EXIT, print_me_version, NULL); + +void dump_me_status(void) +{ + union hfsts1 hfsts1; + union hfsts2 hfsts2; + union hfsts3 hfsts3; + union hfsts4 hfsts4; + union hfsts5 hfsts5; + union hfsts6 hfsts6; + + hfsts1.raw = me_read_config32(PCI_ME_HFSTS1); + hfsts2.raw = me_read_config32(PCI_ME_HFSTS2); + hfsts3.raw = me_read_config32(PCI_ME_HFSTS3); + hfsts4.raw = me_read_config32(PCI_ME_HFSTS4); + hfsts5.raw = me_read_config32(PCI_ME_HFSTS5); + hfsts6.raw = me_read_config32(PCI_ME_HFSTS6); + + printk(BIOS_DEBUG, "ME: HFSTS1 : 0x%08X\n", + hfsts1.raw); + printk(BIOS_DEBUG, "ME: HFSTS2 : 0x%08X\n", + hfsts2.raw); + printk(BIOS_DEBUG, "ME: HFSTS3 : 0x%08X\n", + hfsts3.raw); + printk(BIOS_DEBUG, "ME: HFSTS4 : 0x%08X\n", + hfsts4.raw); + printk(BIOS_DEBUG, "ME: HFSTS5 : 0x%08X\n", + hfsts5.raw); + printk(BIOS_DEBUG, "ME: HFSTS6 : 0x%08X\n", + hfsts6.raw); + + printk(BIOS_DEBUG, "ME: Manufacturing Mode : %s\n", + hfsts1.fields.mfg_mode ? "YES" : "NO"); + printk(BIOS_DEBUG, "ME: FW Partition Table : %s\n", + hfsts1.fields.fpt_bad ? "BAD" : "OK"); + printk(BIOS_DEBUG, "ME: Bringup Loader Failure : %s\n", + hfsts1.fields.ft_bup_ld_flr ? "YES" : "NO"); + printk(BIOS_DEBUG, "ME: Firmware Init Complete : %s\n", + hfsts1.fields.fw_init_complete ? "YES" : "NO"); + printk(BIOS_DEBUG, "ME: Boot Options Present : %s\n", + hfsts1.fields.boot_options ? "YES" : "NO"); + printk(BIOS_DEBUG, "ME: Update In Progress : %s\n", + hfsts1.fields.fw_upd_in_progress ? "YES" : "NO"); + printk(BIOS_DEBUG, "ME: D0i3 Support : %s\n", + hfsts1.fields.d0i3_support_valid ? "YES" : "NO"); + printk(BIOS_DEBUG, "ME: Low Power State Enabled : %s\n", + hfsts2.fields.low_power_state ? "YES" : "NO"); + printk(BIOS_DEBUG, "ME: CPU Replaced : %s\n", + hfsts2.fields.cpu_replaced ? "YES" : "NO"); + printk(BIOS_DEBUG, "ME: CPU Replacement Valid : %s\n", + hfsts2.fields.cpu_replaced_valid ? "YES" : "NO"); + printk(BIOS_DEBUG, "ME: Current Working State : %u\n", + hfsts1.fields.working_state); + printk(BIOS_DEBUG, "ME: Current Operation State : %u\n", + hfsts1.fields.operation_state); + printk(BIOS_DEBUG, "ME: Current Operation Mode : %u\n", + hfsts1.fields.operation_mode); + printk(BIOS_DEBUG, "ME: Error Code : %u\n", + hfsts1.fields.error_code); + printk(BIOS_DEBUG, "ME: CPU Debug Disabled : %s\n", + hfsts6.fields.cpu_debug_disable ? "YES" : "NO"); + printk(BIOS_DEBUG, "ME: TXT Support : %s\n", + hfsts6.fields.txt_support ? "YES" : "NO"); +} |