Google Git
Sign in
chromium / chromiumos / platform / mosys / df9917bf970b0cf6b3b738d9105e4372230c552d / . / lib / eventlog / elog.c
blob: ef74167aab6d5b8600d29aae5ea521f788e2942f [file] [log] [blame]
/*
* Copyright 2012, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <errno.h>
#include <stdlib.h>
#include <inttypes.h>
#include <time.h>
#include "intf/mmio.h"
#include "lib/coreboot.h"
#include "lib/elog.h"
#include "lib/elog_smbios.h"
#include "lib/flashrom.h"
#include "lib/math.h"
#include "lib/smbios.h"
#include "lib/string.h"
#include "lib/val2str.h"
#include "mosys/alloc.h"
#include "mosys/kv_pair.h"
#include "mosys/log.h"
#include "mosys/output.h"
#include "mosys/platform.h"
/*
* elog_verify_header - verify and validate if header is a valid Google Event
* Log header.
*
* @header: pointer to elog header to verify
*
* return < 0 if invalid, 0 if valid
*/
int elog_verify_header(struct elog_header *header)
{
if (header == NULL)
return -1;
if (header->elog_magic != ELOG_MAGIC)
return -1;
if (header->elog_size != sizeof(*header))
return -1;
if (header->elog_version != ELOG_VERSION)
return -1;
return 0;
}
/*
* elog_print_type - add the type of the entry to the kv_pair
*
* @intf: platform interface used for low level hardware access
* @entry: the smbios log entry to get type information
* @kv: kv_pair structure to add type information to
*
* Returns 0 on failure, 1 on success.
*/
int elog_print_type(struct platform_intf *intf, struct smbios_log_entry *entry,
struct kv_pair *kv)
{
const char *type;
const struct valstr elog_event_types[] = {
{ ELOG_TYPE_OS_EVENT, "Kernel Event" },
{ ELOG_TYPE_OS_BOOT, "OS Boot" },
{ ELOG_TYPE_EC_EVENT, "EC Event" },
{ ELOG_TYPE_POWER_FAIL, "Power Fail" },
{ ELOG_TYPE_SUS_POWER_FAIL, "SUS Power Fail" },
{ ELOG_TYPE_PWROK_FAIL, "PWROK Fail" },
{ ELOG_TYPE_SYS_PWROK_FAIL, "SYS PWROK Fail" },
{ ELOG_TYPE_POWER_ON, "Power On" },
{ ELOG_TYPE_POWER_BUTTON, "Power Button" },
{ ELOG_TYPE_POWER_BUTTON_OVERRIDE, "Power Button Override" },
{ ELOG_TYPE_RESET_BUTTON, "Reset Button" },
{ ELOG_TYPE_SYSTEM_RESET, "System Reset" },
{ ELOG_TYPE_RTC_RESET, "RTC Reset" },
{ ELOG_TYPE_TCO_RESET, "TCO Reset" },
{ ELOG_TYPE_ACPI_ENTER, "ACPI Enter" },
{ ELOG_TYPE_ACPI_WAKE, "ACPI Wake" },
{ ELOG_TYPE_ACPI_DEEP_WAKE, "ACPI Wake" },
{ ELOG_TYPE_S0IX_ENTER, "S0ix Enter" },
{ ELOG_TYPE_S0IX_EXIT, "S0ix Exit" },
{ ELOG_TYPE_WAKE_SOURCE, "Wake Source" },
{ ELOG_TYPE_CROS_DEVELOPER_MODE, "Chrome OS Developer Mode" },
{ ELOG_TYPE_CROS_RECOVERY_MODE, "Chrome OS Recovery Mode" },
{ ELOG_TYPE_MANAGEMENT_ENGINE, "Management Engine" },
{ ELOG_TYPE_MANAGEMENT_ENGINE_EXT, "Management Engine Extra" },
{ ELOG_TYPE_LAST_POST_CODE, "Last post code in previous boot" },
{ ELOG_TYPE_POST_EXTRA, "Extra info from previous boot" },
{ ELOG_TYPE_EC_SHUTDOWN, "EC Shutdown" },
{ ELOG_TYPE_SLEEP, "Sleep" },
{ ELOG_TYPE_WAKE, "Wake" },
{ ELOG_TYPE_FW_WAKE, "FW Wake" },
{ ELOG_TYPE_MEM_CACHE_UPDATE, "Memory Cache Update" },
{ ELOG_TYPE_THERM_TRIP, "CPU Thermal Trip" },
{ ELOG_TYPE_CR50_UPDATE, "cr50 Update Reset" },
{ ELOG_TYPE_CR50_NEED_RESET, "cr50 Reset Required" },
{ ELOG_TYPE_EC_DEVICE_EVENT, "EC Device" },
{ ELOG_TYPE_EXTENDED_EVENT, "Extended Event" },
{ 0x0, NULL },
};
type = smbios_get_event_type_string(entry);
if (type == NULL) {
type = val2str_default(entry->type, elog_event_types, NULL);
}
if (type != NULL) {
kv_pair_add(kv, "type", type);
return 1;
}
/* Indicate unknown type in value pair */
kv_pair_add(kv, "type", "Unknown");
kv_pair_fmt(kv, "value", "0x%02x", entry->type);
return 1;
}
/*
* CMOS Extra log format:
* [31:24] = Extra Log Type
* [23:0] = Extra Log Data
*
* If Extra Log Type is 0x01 then Data is Device Path
* [23:16] = Device Type
* [15:0] = Encoded Device Path
*/
static int elog_print_post_extra(struct platform_intf *intf,
struct kv_pair *kv, uint32_t extra)
{
const struct valstr path_type_values[] = {
{ ELOG_DEV_PATH_TYPE_PCI, "PCI" },
{ ELOG_DEV_PATH_TYPE_PNP, "PNP" },
{ ELOG_DEV_PATH_TYPE_I2C, "I2C" },
{ ELOG_DEV_PATH_TYPE_APIC, "APIC" },
{ ELOG_DEV_PATH_TYPE_DOMAIN, "DOMAIN" },
{ ELOG_DEV_PATH_TYPE_CPU_CLUSTER, "CPU Cluster" },
{ ELOG_DEV_PATH_TYPE_CPU, "CPU" },
{ ELOG_DEV_PATH_TYPE_CPU_BUS, "CPU Bus" },
{ ELOG_DEV_PATH_TYPE_IOAPIC, "IO-APIC" },
{ 0, NULL },
};
uint8_t type = (extra >> 16) & 0xff;
/* Currently only know how to print device path */
if ((extra >> 24) != ELOG_TYPE_POST_EXTRA_PATH) {
kv_pair_fmt(kv, "extra", "0x%08x", extra);
return 0;
}
kv_pair_add(kv, "device", val2str(type, path_type_values));
/* Handle different device path types */
switch (type) {
case ELOG_DEV_PATH_TYPE_PCI:
kv_pair_fmt(kv, "path", "%02x:%02x.%1x", (extra >> 8) & 0xff,
(extra >> 3) & 0x1f, (extra & 0x3));
break;
case ELOG_DEV_PATH_TYPE_PNP:
case ELOG_DEV_PATH_TYPE_I2C:
kv_pair_fmt(kv, "path", "%02x:%02x", (extra >> 8) & 0xff,
extra & 0xff);
break;
case ELOG_DEV_PATH_TYPE_APIC:
case ELOG_DEV_PATH_TYPE_DOMAIN:
case ELOG_DEV_PATH_TYPE_CPU_CLUSTER:
case ELOG_DEV_PATH_TYPE_CPU:
case ELOG_DEV_PATH_TYPE_CPU_BUS:
case ELOG_DEV_PATH_TYPE_IOAPIC:
kv_pair_fmt(kv, "path", "0x%04x", extra & 0xffff);
break;
}
return 0;
}
/*
* elog_print_data - add the data associated with the entry to the kv_pair
*
* @intf: platform interface used for low level hardware access
* @entry: the smbios log entry to get the data information
* @kv: kv_pair structure to add data to
*
* Returns 0 on failure, 1 on success.
*/
int elog_print_data(struct platform_intf *intf, struct smbios_log_entry *entry,
struct kv_pair *kv)
{
static struct valstr os_events[] = {
{ ELOG_OS_EVENT_CLEAN, "Clean Shutdown" },
{ ELOG_OS_EVENT_NMIWDT, "NMI Watchdog" },
{ ELOG_OS_EVENT_PANIC, "Panic" },
{ ELOG_OS_EVENT_OOPS, "Oops" },
{ ELOG_OS_EVENT_DIE, "Die" },
{ ELOG_OS_EVENT_MCE, "MCE" },
{ ELOG_OS_EVENT_SOFTWDT, "Software Watchdog" },
{ ELOG_OS_EVENT_MBE, "Multi-bit Error" },
{ ELOG_OS_EVENT_TRIPLE, "Triple Fault" },
{ ELOG_OS_EVENT_THERMAL, "Critical Thermal Threshold" },
{ 0, NULL },
};
static struct valstr wake_source_types[] = {
{ ELOG_WAKE_SOURCE_PCIE, "PCI Express" },
{ ELOG_WAKE_SOURCE_PME, "PCI PME" },
{ ELOG_WAKE_SOURCE_PME_INTERNAL, "Internal PME" },
{ ELOG_WAKE_SOURCE_RTC, "RTC Alarm" },
{ ELOG_WAKE_SOURCE_GPE, "GPE #" },
{ ELOG_WAKE_SOURCE_SMBUS, "SMBALERT" },
{ ELOG_WAKE_SOURCE_PWRBTN, "Power Button" },
{ ELOG_WAKE_SOURCE_PME_HDA, "PME - HDA" },
{ ELOG_WAKE_SOURCE_PME_GBE, "PME - GBE" },
{ ELOG_WAKE_SOURCE_PME_EMMC, "PME - EMMC" },
{ ELOG_WAKE_SOURCE_PME_SDCARD, "PME - SDCARD" },
{ ELOG_WAKE_SOURCE_PME_PCIE1, "PME - PCIE1" },
{ ELOG_WAKE_SOURCE_PME_PCIE2, "PME - PCIE2" },
{ ELOG_WAKE_SOURCE_PME_PCIE3, "PME - PCIE3" },
{ ELOG_WAKE_SOURCE_PME_PCIE4, "PME - PCIE4" },
{ ELOG_WAKE_SOURCE_PME_PCIE5, "PME - PCIE5" },
{ ELOG_WAKE_SOURCE_PME_PCIE6, "PME - PCIE6" },
{ ELOG_WAKE_SOURCE_PME_PCIE7, "PME - PCIE7" },
{ ELOG_WAKE_SOURCE_PME_PCIE8, "PME - PCIE8" },
{ ELOG_WAKE_SOURCE_PME_PCIE9, "PME - PCIE9" },
{ ELOG_WAKE_SOURCE_PME_PCIE10, "PME - PCIE10" },
{ ELOG_WAKE_SOURCE_PME_PCIE11, "PME - PCIE11" },
{ ELOG_WAKE_SOURCE_PME_PCIE12, "PME - PCIE12" },
{ ELOG_WAKE_SOURCE_PME_SATA, "PME - SATA" },
{ ELOG_WAKE_SOURCE_PME_CSE, "PME - CSE" },
{ ELOG_WAKE_SOURCE_PME_CSE2, "PME - CSE2" },
{ ELOG_WAKE_SOURCE_PME_CSE3, "PME - CSE" },
{ ELOG_WAKE_SOURCE_PME_XHCI, "PME - XHCI" },
{ ELOG_WAKE_SOURCE_PME_XDCI, "PME - XDCI" },
{ ELOG_WAKE_SOURCE_PME_XHCI_USB_2, "PME - XHCI (USB 2.0 port)" },
{ ELOG_WAKE_SOURCE_PME_XHCI_USB_3, "PME - XHCI (USB 3.0 port)" },
{ ELOG_WAKE_SOURCE_PME_WIFI, "PME - WIFI" },
{ ELOG_WAKE_SOURCE_PME_PCIE13, "PME - PCIE13" },
{ ELOG_WAKE_SOURCE_PME_PCIE14, "PME - PCIE14" },
{ ELOG_WAKE_SOURCE_PME_PCIE15, "PME - PCIE15" },
{ ELOG_WAKE_SOURCE_PME_PCIE16, "PME - PCIE16" },
{ ELOG_WAKE_SOURCE_PME_PCIE17, "PME - PCIE17" },
{ ELOG_WAKE_SOURCE_PME_PCIE18, "PME - PCIE18" },
{ ELOG_WAKE_SOURCE_PME_PCIE19, "PME - PCIE19" },
{ ELOG_WAKE_SOURCE_PME_PCIE20, "PME - PCIE20" },
{ ELOG_WAKE_SOURCE_PME_PCIE21, "PME - PCIE21" },
{ ELOG_WAKE_SOURCE_PME_PCIE22, "PME - PCIE22" },
{ ELOG_WAKE_SOURCE_PME_PCIE23, "PME - PCIE23" },
{ ELOG_WAKE_SOURCE_PME_PCIE24, "PME - PCIE24" },
{ ELOG_WAKE_SOURCE_GPIO, " GPIO #" },
{ 0, NULL },
};
static struct valstr ec_event_types[] = {
{ EC_EVENT_LID_CLOSED, "Lid Closed" },
{ EC_EVENT_LID_OPEN, "Lid Open" },
{ EC_EVENT_POWER_BUTTON, "Power Button" },
{ EC_EVENT_AC_CONNECTED, "AC Connected" },
{ EC_EVENT_AC_DISCONNECTED, "AC Disconnected" },
{ EC_EVENT_BATTERY_LOW, "Battery Low" },
{ EC_EVENT_BATTERY_CRITICAL, "Battery Critical" },
{ EC_EVENT_BATTERY, "Battery" },
{ EC_EVENT_THERMAL_THRESHOLD, "Thermal Threshold" },
{ EC_EVENT_DEVICE_EVENT, "Device Event" },
{ EC_EVENT_THERMAL, "Thermal" },
{ EC_EVENT_USB_CHARGER, "USB Charger" },
{ EC_EVENT_KEY_PRESSED, "Key Pressed" },
{ EC_EVENT_INTERFACE_READY, "Host Interface Ready" },
{ EC_EVENT_KEYBOARD_RECOVERY, "Keyboard Recovery" },
{ EC_EVENT_THERMAL_SHUTDOWN,
"Thermal Shutdown in previous boot" },
{ EC_EVENT_BATTERY_SHUTDOWN,
"Battery Shutdown in previous boot" },
{ EC_EVENT_THROTTLE_START, "Throttle Requested" },
{ EC_EVENT_THROTTLE_STOP, "Throttle Request Removed" },
{ EC_EVENT_HANG_DETECT, "Host Event Hang" },
{ EC_EVENT_HANG_REBOOT, "Host Event Hang Reboot" },
{ EC_EVENT_PD_MCU, "PD MCU Request" },
{ EC_EVENT_BATTERY_STATUS, "Battery Status Request" },
{ EC_EVENT_PANIC, "Panic Reset in previous boot" },
{ EC_EVENT_KEYBOARD_FASTBOOT, "Keyboard Fastboot Recovery" },
{ EC_EVENT_RTC, "RTC" },
{ EC_EVENT_MKBP, "MKBP" },
{ EC_EVENT_USB_MUX, "USB MUX change" },
{ EC_EVENT_MODE_CHANGE, "Mode change" },
{ EC_EVENT_KEYBOARD_RECOVERY_HWREINIT,
"Keyboard Recovery Forced Hardware Reinit" },
{ EC_EVENT_EXTENDED, "Extended EC events" },
{ 0, NULL },
};
static struct valstr ec_device_event_types[] = {
{ ELOG_EC_DEVICE_EVENT_TRACKPAD, "Trackpad" },
{ ELOG_EC_DEVICE_EVENT_DSP, "DSP" },
{ ELOG_EC_DEVICE_EVENT_WIFI, "WiFi" },
{ 0, NULL },
};
/*
* Make sure we match reasons listed in
* vboot_reference/firmware/lib/vboot_display.c
*/
static struct valstr cros_recovery_reasons[] = {
{ VBNV_RECOVERY_LEGACY, "Legacy Utility" },
{ VBNV_RECOVERY_RO_MANUAL, "Recovery Button Pressed" },
{ VBNV_RECOVERY_RO_INVALID_RW, "RW Failed Signature Check" },
{ VBNV_RECOVERY_RO_S3_RESUME, "S3 Resume Failed" },
{ VBNV_RECOVERY_RO_TPM_ERROR, "TPM Error in RO Firmware" },
{ VBNV_RECOVERY_RO_SHARED_DATA,
"Shared Data Error in RO Firmware" },
{ VBNV_RECOVERY_RO_TEST_S3, "Test Error from S3 Resume()" },
{ VBNV_RECOVERY_RO_TEST_LFS,
"Test Error from LoadFirmwareSetup()" },
{ VBNV_RECOVERY_RO_TEST_LF,
"Test Error from LoadFirmware()" },
{ VBNV_RECOVERY_RO_INVALID_RW_CHECK_NOT_DONE,
"RW firmware check not done" },
{ VBNV_RECOVERY_RO_INVALID_RW_CHECK_DEV_MISMATCH,
"RW firmware developer flag mismatch" },
{ VBNV_RECOVERY_RO_INVALID_RW_CHECK_REC_MISMATCH,
"RW firmware recovery flash mismatch" },
{ VBNV_RECOVERY_RO_INVALID_RW_CHECK_VERIFY_KEYBLOCK,
"RW firmware unable to verify keyblock" },
{ VBNV_RECOVERY_RO_INVALID_RW_CHECK_KEY_ROLLBACK,
"RW firmware key version rollback detected" },
{ VBNV_RECOVERY_RO_INVALID_RW_CHECK_DATA_KEY_PARSE,
"RW firmware unable to parse data key" },
{ VBNV_RECOVERY_RO_INVALID_RW_CHECK_VERIFY_PREAMBLE,
"RW firmware unable to verify preamble" },
{ VBNV_RECOVERY_RO_INVALID_RW_CHECK_FW_ROLLBACK,
"RW firmware version rollback detected" },
{ VBNV_RECOVERY_RO_INVALID_RW_CHECK_HEADER_VALID,
"RW firmware header is valid" },
{ VBNV_RECOVERY_RO_INVALID_RW_CHECK_GET_FW_BODY,
"RW firmware unable to get firmware body" },
{ VBNV_RECOVERY_RO_INVALID_RW_CHECK_HASH_WRONG_SIZE,
"RW firmware hash is wrong size" },
{ VBNV_RECOVERY_RO_INVALID_RW_CHECK_VERIFY_BODY,
"RW firmware unable to verify firmware body" },
{ VBNV_RECOVERY_RO_INVALID_RW_CHECK_VALID,
"RW firmware is valid" },
{ VBNV_RECOVERY_RO_INVALID_RW_CHECK_NO_RO_NORMAL,
"RW firmware read-only normal path is not supported" },
{ VBNV_RECOVERY_RO_INVALID_RW_CHECK_E,
"RW firmware invalid (14)" },
{ VBNV_RECOVERY_RO_INVALID_RW_CHECK_F,
"RW firmware invalid (15)" },
{ VBNV_RECOVERY_RO_FIRMWARE, "Firmware Boot Failure" },
{ VBNV_RECOVERY_RO_TPM_REBOOT, "Recovery Mode TPM Reboot" },
{ VBNV_RECOVERY_EC_SOFTWARE_SYNC,
"EC Software Sync Error" },
{ VBNV_RECOVERY_EC_UNKNOWN_IMAGE,
"Unable to determine active EC image" },
{ VBNV_RECOVERY_DEP_EC_HASH,
"EC software sync error obtaining EC image hash" },
{ VBNV_RECOVERY_EC_EXPECTED_IMAGE,
"EC software sync error obtaining expected EC image from BIOS" },
{ VBNV_RECOVERY_EC_UPDATE,
"EC software sync error updating EC" },
{ VBNV_RECOVERY_EC_JUMP_RW,
"EC software sync unable to jump to EC-RW" },
{ VBNV_RECOVERY_EC_PROTECT,
"EC software sync protection error" },
{ VBNV_RECOVERY_EC_EXPECTED_HASH,
"EC software sync error obtaining expected EC hash from BIOS" },
{ VBNV_RECOVERY_EC_HASH_MISMATCH,
"EC software sync error comparing expected EC hash and image" },
{ VBNV_RECOVERY_VB2_SECDATA_INIT,
"Secure NVRAM (TPM) initialization error" },
{ VBNV_RECOVERY_VB2_GBB_HEADER,
"Error parsing GBB header" },
{ VBNV_RECOVERY_VB2_TPM_CLEAR_OWNER,
"Error trying to clear TPM owner" },
{ VBNV_RECOVERY_VB2_DEV_SWITCH,
"Error reading or updating developer switch" },
{ VBNV_RECOVERY_VB2_FW_SLOT,
"Error selecting RW firmware slot" },
{ VBNV_RECOVERY_VB2_AUX_FW_UPDATE,
"Error updating AUX firmware" },
{ VBNV_RECOVERY_RO_UNSPECIFIED,
"Unknown Error in RO Firmware" },
{ VBNV_RECOVERY_RW_DEV_SCREEN,
"User Requested from Developer Screen" },
{ VBNV_RECOVERY_RW_NO_OS, "No OS Kernel Detected" },
{ VBNV_RECOVERY_RW_INVALID_OS,
"OS kernel or rootfs failed signature check" },
{ VBNV_RECOVERY_RW_TPM_ERROR, "TPM Error in RW Firmware" },
{ VBNV_RECOVERY_RW_DEV_MISMATCH,
"RW Dev Firmware but not Dev Mode" },
{ VBNV_RECOVERY_RW_SHARED_DATA,
"Shared Data Error in RW Firmware" },
{ VBNV_RECOVERY_RW_TEST_LK, "Test Error from LoadKernel()" },
{ VBNV_RECOVERY_DEP_RW_NO_DISK, "No Bootable Disk Found" },
{ VBNV_RECOVERY_TPM_E_FAIL,
"TPM_E_FAIL or TPM_E_FAILEDSELFTEST" },
{ VBNV_RECOVERY_RO_TPM_S_ERROR,
"TPM setup error in read-only firmware" },
{ VBNV_RECOVERY_RO_TPM_W_ERROR,
"TPM write error in read-only firmware" },
{ VBNV_RECOVERY_RO_TPM_L_ERROR,
"TPM lock error in read-only firmware" },
{ VBNV_RECOVERY_RO_TPM_U_ERROR,
"TPM update error in read-only firmware" },
{ VBNV_RECOVERY_RW_TPM_R_ERROR,
"TPM read error in rewritable firmware" },
{ VBNV_RECOVERY_RW_TPM_W_ERROR,
"TPM write error in rewritable firmware" },
{ VBNV_RECOVERY_RW_TPM_L_ERROR,
"TPM lock error in rewritable firmware" },
{ VBNV_RECOVERY_EC_HASH_FAILED,
"EC software sync unable to get EC image hash" },
{ VBNV_RECOVERY_EC_HASH_SIZE,
"EC software sync invalid image hash size" },
{ VBNV_RECOVERY_LK_UNSPECIFIED,
"Unspecified error while trying to load kernel" },
{ VBNV_RECOVERY_RW_NO_DISK,
"No bootable storage device in system" },
{ VBNV_RECOVERY_RW_NO_KERNEL,
"No bootable kernel found on disk" },
{ VBNV_RECOVERY_RW_BCB_ERROR,
"BCB partition error on disk" },
{ VBNV_RECOVERY_FW_FASTBOOT,
"Fastboot-mode requested in firmware" },
{ VBNV_RECOVERY_SECDATA_KERNEL_INIT,
"Kernel secure NVRAM (TPM) initialization error" },
{ VBNV_RECOVERY_RO_TPM_REC_HASH_L_ERROR,
"Recovery hash space lock error in RO firmware" },
{ VBNV_RECOVERY_TPM_DISABLE_FAILED,
"Failed to disable TPM before running untrusted code" },
{ VBNV_RECOVERY_ALTFW_HASH_FAILED,
"Verification of alternative firmware payload failed" },
{ VBNV_RECOVERY_RW_UNSPECIFIED,
"Unspecified/unknown error in RW firmware" },
{ VBNV_RECOVERY_KE_DM_VERITY,
"DM-verity error" },
{ VBNV_RECOVERY_KE_UNSPECIFIED,
"Unspecified/unknown error in kernel" },
{ VBNV_RECOVERY_US_TEST,
"Recovery mode test from user-mode" },
{ VBNV_RECOVERY_BCB_USER_MODE,
"User-mode requested recovery via BCB" },
{ VBNV_RECOVERY_US_FASTBOOT,
"User-mode requested fastboot mode" },
{ VBNV_RECOVERY_TRAIN_AND_REBOOT,
"User requested recovery for training memory and rebooting" },
{ VBNV_RECOVERY_US_UNSPECIFIED, "Unknown Error in User Mode" },
{ 0, NULL },
};
static struct valstr me_path_types[] = {
{ ELOG_ME_PATH_NORMAL, "Normal" },
{ ELOG_ME_PATH_NORMAL, "S3 Wake" },
{ ELOG_ME_PATH_ERROR, "Error" },
{ ELOG_ME_PATH_RECOVERY, "Recovery" },
{ ELOG_ME_PATH_DISABLED, "Disabled" },
{ ELOG_ME_PATH_FW_UPDATE, "Firmware Update" },
{ 0, NULL },
};
static struct valstr coreboot_post_codes[] = {
{ POST_RESET_VECTOR_CORRECT, "Reset Vector Correct" },
{ POST_ENTER_PROTECTED_MODE, "Enter Protected Mode" },
{ POST_PREPARE_RAMSTAGE, "Prepare RAM stage" },
{ POST_ENTRY_C_START, "RAM stage Start" },
{ POST_PRE_HARDWAREMAIN, "Before Hardware Main" },
{ POST_ENTRY_RAMSTAGE, "RAM stage Main" },
{ POST_CONSOLE_READY, "Console is ready" },
{ POST_MEM_PREINIT_PREP_START, "Preparing memory init params" },
{ POST_MEM_PREINIT_PREP_END,
"Memory init param preparation complete"},
{ POST_CONSOLE_BOOT_MSG, "Console Boot Message" },
{ POST_ENABLING_CACHE, "Before Enabling Cache" },
{ POST_ENTER_ELF_BOOT, "Before ELF Boot" },
{ POST_JUMPING_TO_PAYLOAD, "Before Jump to Payload" },
{ POST_DEAD_CODE, "Dead Code" },
{ POST_RESUME_FAILURE, "Resume Failure" },
{ POST_OS_RESUME, "Before OS Resume" },
{ POST_OS_BOOT, "Before OS Boot" },
{ POST_DIE, "Coreboot Dead" },
{ POST_BS_PRE_DEVICE, "Before Device Probe" },
{ POST_BS_DEV_INIT_CHIPS, "Initialize Chips" },
{ POST_BS_DEV_ENUMERATE, "Device Enumerate" },
{ POST_BS_DEV_RESOURCES, "Device Resource Allocation" },
{ POST_BS_DEV_ENABLE, "Device Enable" },
{ POST_BS_DEV_INIT, "Device Initialize" },
{ POST_BS_POST_DEVICE, "After Device Probe" },
{ POST_BS_OS_RESUME_CHECK, "OS Resume Check" },
{ POST_BS_OS_RESUME, "OS Resume" },
{ POST_BS_WRITE_TABLES, "Write Tables" },
{ POST_BS_PAYLOAD_LOAD, "Load Payload" },
{ POST_BS_PAYLOAD_BOOT, "Boot Payload" },
{ POST_FSP_TEMP_RAM_INIT, "FSP-T Enter" },
{ POST_FSP_TEMP_RAM_EXIT, "FSP-T Exit" },
{ POST_FSP_MEMORY_INIT, "FSP-M Enter" },
{ POST_FSP_SILICON_INIT, "FSP-S Enter" },
{ POST_FSP_NOTIFY_BEFORE_ENUMERATE,
"FSP Notify Before Enumerate"},
{ POST_FSP_NOTIFY_BEFORE_FINALIZE,
"FSP Notify Before Finalize"},
{ POST_OS_ENTER_PTS, "ACPI _PTS Method" },
{ POST_OS_ENTER_WAKE, "ACPI _WAK Method" },
{ POST_FSP_MEMORY_EXIT, "FSP-M Exit" },
{ POST_FSP_SILICON_EXIT, "FSP-S Exit" },
{ 0, NULL },
};
static struct valstr mem_cache_slots[] = {
{ ELOG_MEM_CACHE_UPDATE_SLOT_NORMAL, "Normal" },
{ ELOG_MEM_CACHE_UPDATE_SLOT_RECOVERY, "Recovery" },
{ ELOG_MEM_CACHE_UPDATE_SLOT_VARIABLE, "Variable" },
{ 0, NULL },
};
static struct valstr mem_cache_statuses[] = {
{ ELOG_MEM_CACHE_UPDATE_STATUS_SUCCESS, "Success" },
{ ELOG_MEM_CACHE_UPDATE_STATUS_FAIL, "Fail" },
{ 0, NULL },
};
static struct valstr extended_event_subtypes[] = {
{ ELOG_SLEEP_PENDING_PM1_WAKE,
"S3 failed due to pending wake event, PM1" },
{ ELOG_SLEEP_PENDING_GPE0_WAKE,
"S3 failed due to pending wake event, GPE0" },
{ 0, NULL },
};
switch (entry->type) {
case SMBIOS_EVENT_TYPE_LOGCLEAR:
{
uint16_t *bytes = (void *)&entry->data[0];
kv_pair_fmt(kv, "bytes", "%u", *bytes);
break;
}
case SMBIOS_EVENT_TYPE_BOOT:
{
uint32_t *count = (void *)&entry->data[0];
kv_pair_fmt(kv, "count", "%u", *count);
break;
}
case ELOG_TYPE_LAST_POST_CODE:
{
uint16_t *code = (void *)&entry->data[0];
kv_pair_fmt(kv, "code", "0x%02x", *code);
kv_pair_add(kv, "desc", val2str(*code, coreboot_post_codes));
break;
}
case ELOG_TYPE_POST_EXTRA:
{
uint32_t *extra = (void *)&entry->data[0];
elog_print_post_extra(intf, kv, *extra);
break;
}
case ELOG_TYPE_OS_EVENT:
{
uint32_t *event = (void *)&entry->data[0];
kv_pair_add(kv, "event", val2str(*event, os_events));
break;
}
case ELOG_TYPE_ACPI_ENTER:
case ELOG_TYPE_ACPI_WAKE:
{
uint8_t *state = (void *)&entry->data[0];
kv_pair_fmt(kv, "state", "S%u", *state);
break;
}
case ELOG_TYPE_ACPI_DEEP_WAKE:
{
uint8_t *state = (void *)&entry->data[0];
kv_pair_fmt(kv, "state", "Deep S%u", *state);
break;
}
case ELOG_TYPE_WAKE_SOURCE:
{
struct elog_wake_source *event;
event = (void *)&entry->data[0];
kv_pair_add(kv, "source",
val2str(event->source, wake_source_types));
kv_pair_fmt(kv, "instance", "%u", event->instance);
break;
}
case ELOG_TYPE_EC_EVENT:
{
uint8_t *event = (void *)&entry->data[0];
kv_pair_add(kv, "event", val2str(*event, ec_event_types));
break;
}
case ELOG_TYPE_EC_DEVICE_EVENT:
{
uint8_t *event = (void *)&entry->data[0];
kv_pair_add(kv, "event",
val2str(*event, ec_device_event_types));
break;
}
case ELOG_TYPE_CROS_RECOVERY_MODE:
{
uint8_t *reason = (void *)&entry->data[0];
kv_pair_add(kv, "reason",
val2str(*reason, cros_recovery_reasons));
kv_pair_fmt(kv, "code", "0x%02x", *reason);
break;
}
case ELOG_TYPE_MANAGEMENT_ENGINE:
{
uint8_t *path = (void *)&entry->data[0];
kv_pair_add(kv, "path", val2str(*path, me_path_types));
break;
}
case ELOG_TYPE_MEM_CACHE_UPDATE:
{
struct elog_event_mem_cache_update *event;
event = (void *)&entry->data[0];
kv_pair_add(kv, "slot",
val2str(event->slot, mem_cache_slots));
kv_pair_add(kv, "status",
val2str(event->status, mem_cache_statuses));
break;
}
case ELOG_TYPE_EXTENDED_EVENT:
{
struct elog_event_extended_event *event;
event = (void *)&entry->data[0];
kv_pair_add(kv, "event_type",
val2str(event->event_type, extended_event_subtypes));
kv_pair_fmt(kv, "event_complement", "0x%X", event->event_complement);
break;
}
default:
return 0;
}
return 0;
}
static int elog_print_entry_me_ext(struct platform_intf *intf,
struct smbios_log_entry *entry, int id,
const char *desc, const char *value)
{
struct kv_pair *kv;
if (!desc || !value)
return 0;
kv = kv_pair_new();
kv_pair_fmt(kv, "entry", "%d", id);
smbios_eventlog_print_timestamp(intf, entry, kv);
kv_pair_add(kv, "type", desc);
kv_pair_add(kv, "value", value);
kv_pair_print(kv);
kv_pair_free(kv);
return 1;
}
/*
* elog_print_multi_me_ext - print management engine extended events
*
* @intf: platform interface
* @entry: log entry
* @start_id: starting entry id
*
* returns 0 to indicate nothing was printed
* returns >0 to indicate how many events were printed
* returns <0 to indicate error
*/
static int elog_print_multi_me_ext(struct platform_intf *intf,
struct smbios_log_entry *entry,
int start_id)
{
int num_msg = 0;
const struct valstr *me_state_values;
const struct elog_event_data_me_extended *me = (void *)&entry->data[0];
const struct valstr me_cws_values[] = {
{ 0x00, "Reset" },
{ 0x01, "Initializing" },
{ 0x02, "Recovery" },
{ 0x05, "Normal" },
{ 0x06, "Platform Disable Wait" },
{ 0x07, "OP State Transition" },
{ 0x08, "Invalid CPU Plugged In" },
{ 0xFF, NULL }
};
const struct valstr me_opstate_values[] = {
{ 0x00, "Preboot" },
{ 0x01, "M0 with UMA" },
{ 0x04, "M3 without UMA" },
{ 0x05, "M0 without UMA" },
{ 0x06, "Bring up" },
{ 0x07, "M0 without UMA but with error" },
{ 0xFF, NULL }
};
const struct valstr me_opmode_values[] = {
{ 0x02, "Debug" },
{ 0x03, "Soft Temporary Disable" },
{ 0x04, "Security Override via Jumper" },
{ 0x05, "Security Override via MEI Message" },
{ 0xFF, NULL }
};
const struct valstr me_error_values[] = {
{ 0x01, "Uncategorized Failure" },
{ 0x03, "Image Failure" },
{ 0x04, "Debug Failure" },
{ 0xFF, NULL }
};
const struct valstr me_progress_values[] = {
{ 0x00, "ROM Phase" },
{ 0x01, "BUP Phase" },
{ 0x02, "uKernel Phase" },
{ 0x03, "Policy Module" },
{ 0x04, "Module Loading" },
{ 0x05, "Unknown" },
{ 0x06, "Host Communication" },
{ 0xFF, NULL }
};
const struct valstr 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" },
{ 0xFF, NULL }
};
const struct valstr me_progress_rom_values[] = {
{ 0x00, "BEGIN" },
{ 0x06, "DISABLE" },
{ 0xFF, NULL }
};
const struct valstr me_progress_bup_values[] = {
{ 0x00, "Initialization starts" },
{ 0x01, "Disable the host wake event" },
{ 0x04, "Flow determination start process" },
{ 0x08, "Error reading/matching 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" },
{ 0xFF, NULL }
};
const struct valstr 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" },
{ 0xFF, NULL }
};
const struct valstr me_progress_hostcomm_values[] = {
{ 0x00, "Host Communication Established" },
{ 0xFF, NULL }
};
/* Current Working State */
num_msg += elog_print_entry_me_ext(
intf, entry, start_id + num_msg, "ME Working State",
val2str_default(me->current_working_state,
me_cws_values, NULL));
/* Current Operation State */
num_msg += elog_print_entry_me_ext(
intf, entry, start_id + num_msg, "ME Operation State",
val2str_default(me->operation_state,
me_opstate_values, NULL));
/* Current Operation Mode */
num_msg += elog_print_entry_me_ext(
intf, entry, start_id + num_msg, "ME Operation Mode",
val2str_default(me->operation_mode,
me_opmode_values, NULL));
/* Progress Phase */
num_msg += elog_print_entry_me_ext(
intf, entry, start_id + num_msg, "ME Progress Phase",
val2str_default(me->progress_code,
me_progress_values, NULL));
/* Power Management Event */
num_msg += elog_print_entry_me_ext(
intf, entry, start_id + num_msg, "ME PM Event",
val2str_default(me->current_pmevent,
me_pmevent_values, NULL));
/* Error Code (if non-zero) */
num_msg += elog_print_entry_me_ext(
intf, entry, start_id + num_msg, "ME Error Code",
val2str_default(me->error_code,
me_error_values, NULL));
switch (me->progress_code) {
case ELOG_ME_PHASE_ROM:
me_state_values = me_progress_rom_values;
break;
case ELOG_ME_PHASE_BRINGUP:
me_state_values = me_progress_bup_values;
break;
case ELOG_ME_PHASE_POLICY:
me_state_values = me_progress_policy_values;
break;
case ELOG_ME_PHASE_HOST:
me_state_values = me_progress_hostcomm_values;
break;
}
num_msg += elog_print_entry_me_ext(
intf, entry, start_id + num_msg, "ME Phase State",
val2str_default(me->current_state,
me_state_values, NULL));
return num_msg;
}
/*
* elog_print_multi - print multiple entries for an event
*
* @intf: platform interface
* @entry: log entry
* @start_id: starting entry id
*
* returns 0 to indicate nothing was printed
* returns >0 to indicate how many events were printed
* returns <0 to indicate error
*/
int elog_print_multi(struct platform_intf *intf,
struct smbios_log_entry *entry, int start_id)
{
switch (entry->type) {
case ELOG_TYPE_MANAGEMENT_ENGINE_EXT:
/* Management Engine Extended Event */
return elog_print_multi_me_ext(intf, entry, start_id);
}
return 0;
}
/*
* elog_update_checksum - update the checksum at the last byte
*
* @entry: entry structure to update
* @checksum: what to set the checksum to
*/
static void elog_update_checksum(struct smbios_log_entry *entry,
uint8_t checksum)
{
uint8_t *entry_data = (uint8_t *)entry;
entry_data[entry->length - 1] = checksum;
}
/*
* elog_verify - verify the contents of the SMBIOS log entry.
*
* @intf: platform interface used for low level hardware access
* @entry: the smbios log entry to verify
*
* returns 0 failure of verification, 1 if verification is sucessful
*/
int elog_verify(struct platform_intf *intf, struct smbios_log_entry *entry)
{
return rolling8_csum((void *)entry, entry->length) == 0;
}
/*
* elog_fill_timestamp - populate timestamp in entry with current time
*
* @entry: the entry to fill in
*
* returns 0 on succcess, non-zero on failure
*/
static int elog_fill_timestamp(struct smbios_log_entry *entry)
{
time_t secs = time(NULL);
struct tm tm;
int res = 0;
if (secs == -1)
res = -1;
if (gmtime_r(&secs, &tm) == NULL)
res = -1;
entry->second = bin2bcd(tm.tm_sec);
entry->minute = bin2bcd(tm.tm_min);
entry->hour = bin2bcd(tm.tm_hour);
entry->day = bin2bcd(tm.tm_mday);
entry->month = bin2bcd(tm.tm_mon + 1);
entry->year = bin2bcd(tm.tm_year % 100);
/* Basic sanity check whether rtc_get worked and of expected ranges */
if (res || entry->month > 0x12 || entry->day > 0x31 ||
entry->hour > 0x23 || entry->minute > 0x59 ||
entry->second > 0x59) {
entry->year = 0;
entry->month = 0;
entry->day = 0;
entry->hour = 0;
entry->minute = 0;
entry->second = 0;
}
return res;
}
/*
* elog_prepare_entry - fill out an event structure
*
* @buf: buffer for the event
* @entry_type the type of the new entry
* @data: what data to append to the entry
* @data_size: how big the data is
* returns 0 on success, non-zero on failure
*/
static int elog_prepare_entry(void *buf, enum smbios_log_entry_type entry_type,
void *data, uint8_t data_size)
{
struct smbios_log_entry *entry = buf;
entry->type = entry_type;
entry->length = sizeof(*entry) + data_size + 1;
if (elog_fill_timestamp(entry))
return -1;
if (data_size)
memcpy(&entry->data, data, data_size);
/* Zero the checksum byte and then compute checksum */
elog_update_checksum(entry, 0);
elog_update_checksum(entry, -rolling8_csum((void *)entry,
entry->length));
return 0;
}
struct elog_copy_events_params {
uint8_t *dest;
off_t to_skip;
off_t skipped;
};
static int elog_copy_events(struct platform_intf *intf,
struct smbios_log_entry *entry,
void *arg, int *complete)
{
struct elog_copy_events_params *params = arg;
MOSYS_DCHECK(entry);
MOSYS_DCHECK(arg);
MOSYS_DCHECK(complete);
if (entry->length == 0) {
lprintf(LOG_WARNING, "Zero-length eventlog entry detected.\n");
*complete = 1;
return -1;
}
if (params->skipped < params->to_skip) {
params->skipped += entry->length;
} else {
memcpy(params->dest, entry, entry->length);
params->dest += entry->length;
}
return 0;
}
static int elog_events_size(struct platform_intf *intf,
struct smbios_log_entry *entry,
void *arg, int *complete)
{
size_t *events_size = (size_t *)arg;
if (entry->length == 0) {
lprintf(LOG_WARNING, "Zero-length eventlog entry detected.\n");
*complete = 1;
return -1;
}
*events_size += entry->length;
return 0;
}
/*
* elog_add_event_manually - add an event by accessing the log directly.
*
* @intf: platform interface used for low level hardware access
* @type: the type of event to add
* @data_size: the size of the data to add to the event
* @data: pointer to the data to add
*
* returns -1 on failure, 0 on success
*/
int elog_add_event_manually(struct platform_intf *intf,
enum smbios_log_entry_type type,
size_t event_data_size, uint8_t *event_data)
{
size_t full_threshold, shrink_size;
uint8_t *data;
uint8_t *new_data = NULL;
size_t length, data_size, events_size;
size_t event_size = sizeof(struct smbios_log_entry) +
event_data_size + 1;
off_t header_offset, data_offset;
struct elog_copy_events_params params;
if (!intf->cb->eventlog->fetch || !intf->cb->eventlog->write) {
errno = ENOSYS;
return -1;
}
/* Total event size must fit in length member of entry (1 byte) */
if (event_size > 0xff) {
lprintf(LOG_ERR, "Event data size %zu too large.\n",
event_data_size);
errno = EINVAL;
return -1;
}
if (intf->cb->eventlog->fetch(intf, &data, &length, &header_offset,
&data_offset))
return -1;
data_size = length - data_offset;
/*
* Assume the full threshold is 3/4 the log size, and the shrink size
* is 1/4 the size.
*/
full_threshold = (length * 3) / 4;
shrink_size = length / 4;
if (event_size > shrink_size) {
lprintf(LOG_WARNING, "Event size %zx is too large.\n",
event_size);
return -1;
}
/* Figure out how much space the existing events take up. */
events_size = 0;
if (smbios_eventlog_foreach_event(intf, NULL, &elog_events_size,
&events_size)) {
lprintf(LOG_ERR, "Eventlog is corrupt and must be cleared "
"before adding new events.\n");
return -1;
}
/* Shrink the log if it's going to exceed the full threshold. */
if (events_size + event_size > full_threshold) {
uint32_t skipped;
new_data = mosys_malloc(length);
memcpy(new_data, data, data_offset);
memset(new_data + data_offset, 0xff, data_size);
params.dest = new_data + data_offset;
params.skipped = 0;
params.to_skip = shrink_size;
if (smbios_eventlog_foreach_event(intf, NULL, &elog_copy_events,
&params)) {
free(new_data);
return -1;
}
skipped = params.skipped;
events_size -= skipped;
data = new_data;
elog_prepare_entry(data + data_offset + events_size,
SMBIOS_EVENT_TYPE_LOGCLEAR,
&skipped, sizeof(skipped));
events_size += sizeof(struct smbios_log_entry) +
sizeof(skipped) + 1;
}
/* Add the new event. */
if (elog_prepare_entry(data + data_offset + events_size, type,
event_data, event_data_size)) {
free(new_data);
return -1;
}
if (intf->cb->eventlog->write(intf, data, length)) {
free(new_data);
return -1;
}
free(new_data);
return 0;
}
/*
* elog_clear_manually - clear the eventlog by reading and writing it directly.
*
* @intf: platform interface used for low level hardware access
*
* returns -1 on failure, 0 on success
*/
int elog_clear_manually(struct platform_intf *intf)
{
uint8_t *data;
uint8_t *new_data;
size_t length;
off_t header_offset, data_offset, data_size;
struct elog_copy_events_params params;
uint32_t skipped;
if (!intf->cb->eventlog->fetch || !intf->cb->eventlog->write) {
errno = ENOSYS;
return -1;
}
if (intf->cb->eventlog->fetch(intf, &data, &length, &header_offset,
&data_offset))
return -1;
data_size = length - data_offset;
new_data = mosys_malloc(length);
memcpy(new_data, data, data_offset);
memset(new_data + data_offset, 0xff, data_size);
params.dest = new_data + data_offset;
params.skipped = 0;
params.to_skip = data_size;
if (smbios_eventlog_foreach_event(intf, NULL, &elog_copy_events,
&params)) {
lprintf(LOG_WARNING, "Eventlog corrupt, proceeding...\n");
}
skipped = params.skipped;
if (elog_prepare_entry(params.dest, SMBIOS_EVENT_TYPE_LOGCLEAR,
&skipped, sizeof(skipped))) {
free(new_data);
return -1;
}
if (intf->cb->eventlog->write(intf, new_data, length)) {
free(new_data);
return -1;
}
return 0;
}
/*
* elog_fetch_from_smbios - fetch the eventlog from the SMBIOS tables.
*
* @intf: platform interface used for low level hardware access
* @data: pointer to the fetched contents of the event log
* @length: pointer to the length of the event log
* @header_offset: offset of the header in the event log
* @data_offset: offset of the first event in the event log
*
* returns -1 on failure, 0 on success
*/
int elog_fetch_from_smbios(struct platform_intf *intf, uint8_t **data,
size_t *length, off_t *header_offset,
off_t *data_offset)
{
struct smbios_table table;
if (smbios_find_table(intf, SMBIOS_TYPE_LOG, 0, &table) < 0) {
lprintf(LOG_WARNING, "Unable to find SMBIOS eventlog table.\n");
return -1;
}
if (table.data.log.header_format != ELOG_HEADER_FORMAT)
return -1;
/* Only support memory mapped I/O access */
if (table.data.log.method != SMBIOS_LOG_METHOD_TYPE_MEM)
return -1;
*length = table.data.log.length;
*data = mosys_malloc(*length);
*header_offset = table.data.log.header_start;
*data_offset = table.data.log.data_start;
if (mmio_read(intf, table.data.log.address.mem, *length, *data) < 0)
return -1;
return 0;
}
#define ELOG_FMAP_REGION "RW_ELOG"
/*
* elog_fetch_from_flash - fetch the eventlog from the flash.
*
* @intf: platform interface used for low level hardware access
* @data: pointer to the fetched contents of the event log
* @length: pointer to the length of the event log
* @header_offset: offset of the header in the event log
* @data_offset: offset of the first event in the event log
*
* returns -1 on failure, 0 on success
*/
int elog_fetch_from_flash(struct platform_intf *intf, uint8_t **data,
size_t *length, off_t *header_offset,
off_t *data_offset)
{
int bytes_read;
bytes_read =
flashrom_read_by_name(data, HOST_FIRMWARE, ELOG_FMAP_REGION);
if (bytes_read < 0) {
lprintf(LOG_WARNING, "Failed to read event log from flash.\n");
return -1;
}
*length = bytes_read;
*header_offset = 0;
*data_offset = sizeof(struct elog_header);
return 0;
}
/*
* elog_write_to_flash - write the eventlog to flash.
*
* @intf: platform interface used for low level hardware access
* @data: pointer to the contents of the event log
* @length: length of the event log
*
* returns -1 on failure, 0 on success
*/
int elog_write_to_flash(struct platform_intf *intf, uint8_t *data,
size_t length)
{
int bytes_written;
bytes_written = flashrom_write_by_name(length, data, HOST_FIRMWARE,
ELOG_FMAP_REGION);
if (bytes_written != length) {
lprintf(LOG_WARNING, "Failed to write event log to flash.\n");
return -1;
}
return 0;
}