/* SPDX-License-Identifier: GPL-2.0-only */ #include #include #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_TEST] = "Test", [ME_HFS_CWS_DISABLED] = "Disabled", [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", [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_DISABLED] = "Disabled", [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] = "Entery 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(uint32_t hfs, uint32_t gmes) { /* Check Current States */ printf("ME: FW Partition Table : %s\n", ((hfs & 0x20) >> 5) ? "BAD" : "OK"); printf("ME: Bringup Loader Failure : %s\n", ((hfs & 0x400) >> 10) ? "YES" : "NO"); printf("ME: Firmware Init Complete : %s\n", ((hfs & 0x200) >> 9) ? "YES" : "NO"); printf("ME: Manufacturing Mode : %s\n", ((hfs & 0x10) >> 4) ? "YES" : "NO"); printf("ME: Boot Options Present : %s\n", ((hfs & 0x1000000) >> 24) ? "YES" : "NO"); printf("ME: Update In Progress : %s\n", ((hfs & 0x800) >> 11) ? "YES" : "NO"); printf("ME: Current Working State : %s\n", me_cws_values[hfs & 0xf]); printf("ME: Current Operation State : %s\n", me_opstate_values[(hfs & 0x1c0) >> 6]); printf("ME: Current Operation Mode : %s\n", me_opmode_values[(hfs & 0xf0000) >> 16]); printf("ME: Error Code : %s\n", me_error_values[(hfs & 0xf000) >> 12]); printf("ME: Progress Phase : %s\n", me_progress_values[(gmes & 0xf0000000) >> 28]); printf("ME: Power Management Event : %s\n", me_pmevent_values[(gmes & 0xf000000) >> 24]); printf("ME: Progress Phase State : "); switch ((gmes & 0xf0000000) >> 28) { case ME_GMES_PHASE_ROM: /* ROM Phase */ printf("%s", me_progress_rom_values[(gmes & 0xff0000) >> 16]); break; case ME_GMES_PHASE_BUP: /* Bringup Phase */ if ((gmes & 0xff0000) >> 16 < ARRAY_SIZE(me_progress_bup_values) && me_progress_bup_values[(gmes & 0xff0000) >> 16]) printf("%s", me_progress_bup_values[(gmes & 0xff0000) >> 16]); else printf("0x%02x", (gmes & 0xff0000) >> 16); break; case ME_GMES_PHASE_POLICY: /* Policy Module Phase */ if ((gmes & 0xff0000) >> 16 < ARRAY_SIZE(me_progress_policy_values) && me_progress_policy_values[(gmes & 0xff0000) >> 16]) printf("%s", me_progress_policy_values[(gmes & 0xff0000) >> 16]); else printf("0x%02x", (gmes & 0xff0000) >> 16); break; case ME_GMES_PHASE_HOST: /* Host Communication Phase */ if (!((gmes & 0xff0000) >> 16)) printf("Host communication established"); else printf("0x%02x", (gmes & 0xff0000) >> 16); break; default: printf("Unknown 0x%02x", (gmes & 0xff0000) >> 16); } printf("\n"); }