diff options
Diffstat (limited to 'src/soc/intel')
| -rw-r--r-- | src/soc/intel/tigerlake/me.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/src/soc/intel/tigerlake/me.c b/src/soc/intel/tigerlake/me.c index d48b32bf6b..9b61496e65 100644 --- a/src/soc/intel/tigerlake/me.c +++ b/src/soc/intel/tigerlake/me.c @@ -15,5 +15,166 @@ #include <bootstate.h> #include <intelblocks/cse.h> +#include <console/console.h> +#include <soc/me.h> +#include <stdint.h> + +/* Host Firmware Status Register 2 */ +union me_hfsts2 { + uint32_t data; + 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 4 */ +union me_hfsts4 { + uint32_t data; + 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 me_hfsts5 { + uint32_t data; + 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 me_hfsts6 { + uint32_t data; + 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 void dump_me_status(void *unused) +{ + union me_hfsts1 hfsts1; + union me_hfsts2 hfsts2; + union me_hfsts3 hfsts3; + union me_hfsts4 hfsts4; + union me_hfsts5 hfsts5; + union me_hfsts6 hfsts6; + + if (!is_cse_enabled()) + return; + + hfsts1.data = me_read_config32(PCI_ME_HFSTS1); + hfsts2.data = me_read_config32(PCI_ME_HFSTS2); + hfsts3.data = me_read_config32(PCI_ME_HFSTS3); + hfsts4.data = me_read_config32(PCI_ME_HFSTS4); + hfsts5.data = me_read_config32(PCI_ME_HFSTS5); + hfsts6.data = me_read_config32(PCI_ME_HFSTS6); + + printk(BIOS_DEBUG, "ME: HFSTS1 : 0x%08X\n", hfsts1.data); + printk(BIOS_DEBUG, "ME: HFSTS2 : 0x%08X\n", hfsts2.data); + printk(BIOS_DEBUG, "ME: HFSTS3 : 0x%08X\n", hfsts3.data); + printk(BIOS_DEBUG, "ME: HFSTS4 : 0x%08X\n", hfsts4.data); + printk(BIOS_DEBUG, "ME: HFSTS5 : 0x%08X\n", hfsts5.data); + printk(BIOS_DEBUG, "ME: HFSTS6 : 0x%08X\n", hfsts6.data); + + /* + * Lock Descriptor, and Fuses must be programmed on a + * production system to indicate ME Manufacturing mode is disabled. + */ + printk(BIOS_DEBUG, "ME: Manufacturing Mode : %s\n", + ((hfsts1.fields.spi_protection_mode == 0) && + (hfsts6.fields.fpf_soc_lock == 1)) ? "NO" : "YES"); + /* + * The SPI Protection Mode bit reflects SPI descriptor + * locked(0) or unlocked(1). + */ + printk(BIOS_DEBUG, "ME: SPI Protection Mode Enabled : %s\n", + hfsts1.fields.spi_protection_mode ? "NO" : "YES"); + 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_present ? "YES" : "NO"); + printk(BIOS_DEBUG, "ME: Update In Progress : %s\n", + hfsts1.fields.update_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: Enhanced Debug Mode : %s\n", + hfsts1.fields.invoke_enhance_dbg_mode ? "YES" : "NO"); + 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"); +} BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_EXIT, print_me_fw_version, NULL); +BOOT_STATE_INIT_ENTRY(BS_OS_RESUME_CHECK, BS_ON_EXIT, dump_me_status, NULL); |