diff options
Diffstat (limited to 'src/soc/intel/alderlake/me.c')
| -rw-r--r-- | src/soc/intel/alderlake/me.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/soc/intel/alderlake/me.c b/src/soc/intel/alderlake/me.c new file mode 100644 index 0000000000..6239eb24da --- /dev/null +++ b/src/soc/intel/alderlake/me.c @@ -0,0 +1,98 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <bootstate.h> +#include <intelblocks/cse.h> +#include <console/console.h> +#include <soc/me.h> +#include <stdint.h> + +static bool is_manuf_mode(union me_hfsts1 hfsts1, union me_hfsts6 hfsts6) +{ + /* + * ME manufacturing mode is disabled if the descriptor is locked, fuses + * are programmed and manufacturing variables are locked. + */ + return !((hfsts1.fields.mfg_mode == 0) && + (hfsts6.fields.fpf_soc_lock == 1) && + (hfsts6.fields.manuf_lock == 1)); +} + +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; + bool manuf_mode; + + 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); + + manuf_mode = is_manuf_mode(hfsts1, hfsts6); + printk(BIOS_DEBUG, "ME: Manufacturing Mode : %s\n", + manuf_mode ? "YES" : "NO"); + /* + * 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.mfg_mode ? "NO" : "YES"); + printk(BIOS_DEBUG, "ME: FPFs Committed : %s\n", + hfsts6.fields.fpf_soc_lock ? "YES" : "NO"); + printk(BIOS_DEBUG, "ME: Manufacturing Vars Locked : %s\n", + hfsts6.fields.manuf_lock ? "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_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"); + + if (CONFIG(SOC_INTEL_CSE_LITE_SKU)) + cse_log_ro_write_protection_info(manuf_mode); +} + +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); |