me_status.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <console/console.h>
#include "me.h"
 
/* HFS1[3:0] Current Working State Values */
static const char *me_cws_values[] = {
        [ME_HFS_CWS_RESET]      = "Reset",
        [ME_HFS_CWS_INIT]       = "Initializing",
        [ME_HFS_CWS_REC]        = "Recovery",
        [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"
};
 
/* HFS1[8:6] Current Operation State Values */
static const char *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"
};
 
/* HFS[19:16] Current Operation Mode Values */
static const char *me_opmode_values[] = {
        [ME_HFS_MODE_NORMAL]    = "Normal",
        [ME_HFS_MODE_DEBUG]     = "Debug or Disabled by AltDisableBit",
        [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"
};
 
/* HFS[15:12] Error Code Values */
static const char *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"
};
 
/* GMES[31:28] ME Progress Code */
static const char *me_progress_values[] = {
        [ME_GMES_PHASE_ROM]     = "ROM Phase",
        [ME_GMES_PHASE_BUP]     = "BUP Phase",
        [ME_GMES_PHASE_UKERNEL] = "uKernel Phase",
        [ME_GMES_PHASE_POLICY]  = "Policy Module",
        [ME_GMES_PHASE_MODULE]  = "Module Loading",
        [ME_GMES_PHASE_UNKNOWN] = "Unknown",
        [ME_GMES_PHASE_HOST]    = "Host Communication"
};
 
/* GMES[27:24] Power Management Event */
static const char *me_pmevent_values[] = {
        [0x00] = "Clean Moff->Mx wake",
        [0x01] = "Moff->Mx wake after an error",
        [0x02] = "Clean global reset",
        [0x03] = "Global reset after an error",
        [0x04] = "Clean Intel ME reset",
        [0x05] = "Intel ME reset due to exception",
        [0x06] = "Pseudo-global reset",
        [0x07] = "S0/M0->Sx/M3",
        [0x08] = "Sx/M3->S0/M0",
        [0x09] = "Non-power cycle reset",
        [0x0a] = "Power cycle reset through M3",
        [0x0b] = "Power cycle reset through Moff",
        [0x0c] = "Sx/Mx->Sx/Moff"
};
 
/* Progress Code 0 states */
static const char *me_progress_rom_values[] = {
        [0x00] = "BEGIN",
        [0x06] = "DISABLE"
};
 
/* Progress Code 1 states */
static const char *me_progress_bup_values[] = {
        [0x00] = "Initialization starts",
        [0x01] = "Disable the host wake event",
        [0x04] = "Flow determination start process",
        [0x08] = "Error reading/matching the VSCC table in the descriptor",
        [0x0a] = "Check to see if straps say ME DISABLED",
        [0x0b] = "Timeout waiting for PWROK",
        [0x0d] = "Possibly handle BUP manufacturing override strap",
        [0x11] = "Bringup in M3",
        [0x12] = "Bringup in M0",
        [0x13] = "Flow detection error",
        [0x15] = "M3 clock switching error",
        [0x18] = "M3 kernel load",
        [0x1c] = "T34 missing - cannot program ICC",
        [0x1f] = "Waiting for DID BIOS message",
        [0x20] = "Waiting for DID BIOS message failure",
        [0x21] = "DID reported an error",
        [0x22] = "Enabling UMA",
        [0x23] = "Enabling UMA error",
        [0x24] = "Sending DID Ack to BIOS",
        [0x25] = "Sending DID Ack to BIOS error",
        [0x26] = "Switching clocks in M0",
        [0x27] = "Switching clocks in M0 error",
        [0x28] = "ME in temp disable",
        [0x32] = "M0 kernel load",
};
 
/* Progress Code 3 states */
static const char *me_progress_policy_values[] = {
        [0x00] = "Entry into Policy Module",
        [0x03] = "Received S3 entry",
        [0x04] = "Received S4 entry",
        [0x05] = "Received S5 entry",
        [0x06] = "Received UPD entry",
        [0x07] = "Received PCR entry",
        [0x08] = "Received NPCR entry",
        [0x09] = "Received host wake",
        [0x0a] = "Received AC<>DC switch",
        [0x0b] = "Received DRAM Init Done",
        [0x0c] = "VSCC Data not found for flash device",
        [0x0d] = "VSCC Table is not valid",
        [0x0e] = "Flash Partition Boundary is outside address space",
        [0x0f] = "ME cannot access the chipset descriptor region",
        [0x10] = "Required VSCC values for flash parts do not match",
};
 
void intel_me_status(union me_hfs *hfs, union me_gmes *gmes)
{
        if (CONFIG_DEFAULT_CONSOLE_LOGLEVEL < BIOS_DEBUG)
                return;
 
        /* Check Current States */
        printk(BIOS_DEBUG, "ME: FW Partition Table      : %s\n",
               hfs->fpt_bad ? "BAD" : "OK");
        printk(BIOS_DEBUG, "ME: Bringup Loader Failure  : %s\n",
               hfs->ft_bup_ld_flr ? "YES" : "NO");
        printk(BIOS_DEBUG, "ME: Firmware Init Complete  : %s\n",
               hfs->fw_init_complete ? "YES" : "NO");
        printk(BIOS_DEBUG, "ME: Manufacturing Mode      : %s\n",
               hfs->mfg_mode ? "YES" : "NO");
        printk(BIOS_DEBUG, "ME: Boot Options Present    : %s\n",
               hfs->boot_options_present ? "YES" : "NO");
        printk(BIOS_DEBUG, "ME: Update In Progress      : %s\n",
               hfs->update_in_progress ? "YES" : "NO");
        printk(BIOS_DEBUG, "ME: Current Working State   : %s\n",
               me_cws_values[hfs->working_state]);
        printk(BIOS_DEBUG, "ME: Current Operation State : %s\n",
               me_opstate_values[hfs->operation_state]);
        printk(BIOS_DEBUG, "ME: Current Operation Mode  : %s\n",
               me_opmode_values[hfs->operation_mode]);
        printk(BIOS_DEBUG, "ME: Error Code              : %s\n",
               me_error_values[hfs->error_code]);
        printk(BIOS_DEBUG, "ME: Progress Phase          : %s\n",
               me_progress_values[gmes->progress_code]);
        printk(BIOS_DEBUG, "ME: Power Management Event  : %s\n",
               me_pmevent_values[gmes->current_pmevent]);
 
        printk(BIOS_DEBUG, "ME: Progress Phase State    : ");
        switch (gmes->progress_code) {
        case ME_GMES_PHASE_ROM:         /* ROM Phase */
                printk(BIOS_DEBUG, "%s",
                       me_progress_rom_values[gmes->current_state]);
                break;
 
        case ME_GMES_PHASE_BUP:         /* Bringup Phase */
                if (gmes->current_state < ARRAY_SIZE(me_progress_bup_values)
                    && me_progress_bup_values[gmes->current_state])
                        printk(BIOS_DEBUG, "%s",
                               me_progress_bup_values[gmes->current_state]);
                else
                        printk(BIOS_DEBUG, "0x%02x", gmes->current_state);
                break;
 
        case ME_GMES_PHASE_POLICY:      /* Policy Module Phase */
                if (gmes->current_state < ARRAY_SIZE(me_progress_policy_values)
                    && me_progress_policy_values[gmes->current_state])
                        printk(BIOS_DEBUG, "%s",
                               me_progress_policy_values[gmes->current_state]);
                else
                        printk(BIOS_DEBUG, "0x%02x", gmes->current_state);
                break;
 
        case ME_GMES_PHASE_HOST:        /* Host Communication Phase */
                if (!gmes->current_state)
                        printk(BIOS_DEBUG, "Host communication established");
                else
                        printk(BIOS_DEBUG, "0x%02x", gmes->current_state);
                break;
 
        default:
                printk(BIOS_DEBUG, "Unknown 0x%02x", gmes->current_state);
        }
        printk(BIOS_DEBUG, "\n");
}