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The UEFI log provides information about the start and end of UEFI. The table lists the log entries that can help you verify the start and end of UEFI.
Log entryDescription
UEFI Start [ 1568]Indicates the start of UEFI
[ 3086] UEFI EndIndicates the end of UEFI
The numbers in the log entry column of the table show the timestamp in milliseconds.
The following example log uses the debug build flavor. To use the build flavor, replace the ‘RELEASE’ string with ‘DEBUG’ in the boot build command. For more information, see Build BOOT.
UEFI logs
 - UEFI Start     [ 1568]
 - 0x09FC01000 [ 1571] Sec.efi
   ASLR        : ON
   DEP         : ON (RTB)
   Timer Delta : +11 mS
   RAM Entry 0 : Base 0x0080000000  Size 0x003A800000
   RAM Entry 1 : Base 0x00C0000000  Size 0x0040000000
   RAM Entry 2 : Base 0x0100000000  Size 0x0100000000
   Total Available RAM : 6056 MB (0x017A800000)
   Total Installed RAM : 6144 MB (0x0180000000)
   Multithread   : ON (Lib ver 1.2)
   CPU Cores     : 8 (init 2)
   Init 1 aux cores of 7
   Init CPU core 1
   CONF File   : uefiplatLA.cfg
   UEFI Ver    : 6.0.231205.BOOT.<XXX.x.x.Xx-xxxxx-XXXXXXX-x>
   Build Info  : 64b <XXXX>
   Boot Device : UFS
   PROD Mode   : FALSE
   Retail      : FALSE
   Scheduler up on Core 1
   DTB config    : client[0]..trace[0]..verbose[0]
   - 0x09F0CF000 [ 1630] DxeCore.efi
   Loading DxeCore at 0x009F0CF000 EntryPoint=0x009F0D0000
   HOBLIST address in DXE = 0x9EEC0018
   FV Hob            0x9FC00000 - 0x9FE70FFF
   FV Hob            0x9F10E000 - 0x9F47AFFF
   FV2 Hob           0x9F10E000 - 0x9F47AFFF
 - 631008B0-B2D1-410A-8B49-2C5C4D8ECC7E - 00000000-0000-0000-0000-000000000000
 - 0x09F069000 [ 1633] EnvDxe.efi
 - 0x09F05F000 [ 1634] RscRtDxe.efi
 - 0x09F057000 [ 1634] SCHandlerRtDxe.efi
 - 0x09EB94000 [ 1634] RuntimeDxe.efi
 - 0x09F049000 [ 1635] ArmCpuDxe.efi
 - 0x09F040000 [ 1636] ArmGicDxe.efi
 - 0x09F039000 [ 1636] MetronomeDxe.efi
 - 0x09F031000 [ 1636] ArmTimerDxe.efi
 - 0x09F027000 [ 1636] SmemDxe.efi

 - 0x09EFCD000 [ 1637] DALSys.efi
 - 0x09EFC4000 [ 1637] HWIODxeDriver.efi
 - 0x09EFB9000 [ 1637] ChipInfo.efi
 - 0x09EFB1000 [ 1638] PlatformInfoDxeDriver.efi
 - 0x09EF8D000 [ 1638] HALIOMMU.efi
 - 0x09EF79000 [ 1687] ULogDxe.efi
 - 0x09EF71000 [ 1687] CmdDbDxe.efi
 - 0x09EF69000 [ 1688] PwrUtilsDxe.efi
 - 0x09EF56000 [ 1688] NpaDxe.efi
 - 0x09EF46000 [ 1689] RpmhDxe.efi
 - 0x09EF3A000 [ 1689] VcsDxe.efi
 - 0x09EF0C000 [ 1690] ClockDxe.efi
   Cluster 0:        0 Hz
   Cluster 2:        0 Hz
 - 0x09EEFF000 [ 1697] ICBDxe.efi
 - 0x09EEF6000 [ 1699] ShmBridgeDxeLA.efi
 - 0x09EEE7000 [ 1700] ScmDxeLA.efi
 - 0x09EEDE000 [ 1702] DALTLMM.efi
 - 0x09EED4000 [ 1702] SPMI.efi
 - 0x09EECA000 [ 1707] I2C.efi
 - 0x09EB8B000 [ 1707] ResetRuntimeDxe.efi
 - 0x09EB66000 [ 1708] PmicDxe.efi
   PM0: 47, PM1: 63, PM2: 49, PM8: 46,
   Module cannot re-initialize DAL module environments
 - 0x09EB5B000 [ 1726] DiskIoDxe.efi
 - 0x09EB4E000 [ 1726] PartitionDxe.efi
 - 0x09EB46000 [ 1726] EnglishDxe.efi
 - 0x09EB3B000 [ 1727] FvSimpleFileSystem.efi
 - 0x09EB1F000 [ 1727] SdccDxe.efi
 - 0x09EAFE000 [ 1728] UFSDxe.efi
   UFS INQUIRY ID: SAMSUNG KM2L9001CM-B518 0700
   UFS Boot LUN: 1
   Protective MBR validation might be needed.
   Protective MBR validation might be needed.
 - 0x09E80F000 [ 1757] Fat.efi
 - 0x09D9B0000 [ 1757] TzDxeLA.efi
 - 0x09D90F000 [ 1759] VariableDxe.efi
   ConfigStorPartitions: Status:Success
   <VariablePolicyInitialize:179> variable policy engine disabled
 - 0x09E807000 [ 1877] QcomWDogDxe.efi
   HW Wdog Setting from PCD : Disabled
 - 0x09D927000 [ 1878] WatchdogTimer.efi
 - 0x09D6D4000 [ 1878] SecurityStubDxe.efi
 - 0x09E821000 [ 1878] EmbeddedMonotonicCounter.efi
 - 0x09D91E000 [ 1880] RealTimeClock.efi
 - 0x09D6AD000 [ 1881] DevicePathDxe.efi
 - 0x09D6CC000 [ 1881] CapsuleRuntimeDxe.efi
 - 0x09D666000 [ 1882] HiiDatabase.efi
 - 0x09D6C3000 [ 1882] FontDxe.efi
 - 0x09D58E000 [ 1887] QcomBds.efi
 - 0x09D63F000 [ 1895] VerifiedBootDxe.efi
 - 0x09D65A000 [ 1896] DDRInfoDxe.efi
 - 0x09D626000 [ 1897] FeatureEnablerDxe.efi
   QseeResponse->result = 0xFFFFFFFF
   Status = 0x7
   QseeResponse->result = 0xFFFFFFFF
   Status = 0x7
   Image partition label not found
   EFI_QseecomStartApp: Load from partition (featenabler_a)Failed:  Status(0x800000000000000E), appId(0)
   QseeResponse->result = 0xFFFFFFFF
   Status = 0x7
   QseeResponse->result = 0xFFFFFFFF
   Status = 0x7
   Image partition label not found
   EFI_QseecomStartApp: Load from partition (featenabler)Failed:  Status(0x800000000000000E), appId(0)
   Image partition label not found
   LoadImageFromPartitionUsingGuid Failed: 14
   EFI_QseecomStartApp: Load Failed:  Status(0x800000000000000E)
   Failed to start featenabler_a TA, status = 14
 - 0x09D4EB000 [ 1901] DisplayDxe.efi
   DisplayDxe: SW renderer mode enabled!
   DisplayDxe: Panel ID:0x00000000 [LCD]
   DisplayDxe: Resolution 640x480 (1 intf)
 - 0x09D5DA000 [ 1912] FvDxe.efi
 - 0x09D60B000 [ 1912] PILProxyDxe.efi
 - 0x09D555000 [ 1913] PILDxe.efi
 - 0x09D5CF000 [ 1934] IPCCDxe.efi
 - 0x09D571000 [ 1934] GlinkDxe.efi
   smem_alloc_ex: SMEM alloc_ex failed with err=-3! smem_type=478, remote=3, size=32, flags=0x40000000. - 0x09D4DB000 [ 1935] CPRDxe.efi
 - 0x09D586000 [ 1935] PrintDxe.efi
 - 0x09D540000 [ 1936] SPI.efi
 - 0x09D4C2000 [ 1936] PmicGlinkDxe.efi
 - 0x09D4D1000 [ 1937] UsbPwrCtrlDxe.efi
 - 0x09D483000 [ 1937] QcomChargerDxeLA.efi
 - 0x09D54D000 [ 1947] ChargerExDxe.efi
 - 0x09D46A000 [ 1947] UsbfnDwc3Dxe.efi
 - 0x09D4AB000 [ 1948] XhciPciEmulation.efi
 - 0x09D43B000 [ 1948] XhciDxe.efi
 - 0x09D429000 [ 1949] UsbBusDxe.efi
 - 0x09D41C000 [ 1949] UsbKbDxe.efi
 - 0x09D4B6000 [ 1950] UsbMassStorageDxe.efi
 - 0x09D406000 [ 1950] UsbConfigDxe.efi
   UsbConfigInit: USB RUMI 0, ver 65536, sub 1
   UsbConfigLibOpenProtocols: PMI version (0x0)
   UsbConfigLibOpenProtocols: gPmicNpaClientHS2 cannot be created
   UsbConfigInit: Dual Role Enabled on Port Number: 0
   UsbConfigInit: after setting role
   UsbConfigInit: UsbConfigInit, not start on port: 0, mode 0
   UsbConfigInit: Dual Role Enabled on Port Number: 1
   UsbConfigInit: after setting role
   UsbConfigInit: UsbConfigInit, not start on port: 1, mode 0
   UsbConfigInit: UsbPwrCtrl No. of Ports = pinctrl-1

UsbConfigPortsQueryConnectionChange: usbport->connectstate: ATT
ConnectSts : Attach, Data Role : UFP (DEVICE Mode), Lane : CC1, CoreNum : 0
HandlePortPartnerXtach: Cable Attach core 0, portmode 1, dual mode 1
- 0x09D455000 [ 1954] ButtonsDxe.efi
ButtonsDxeTest: Keypress SDAM data payload 0
- 0x09D462000 [ 1956] TsensDxe.efi
- 0x09D3FE000 [ 1958] LimitsDxe.efi
- 0x09D3D7000 [ 1962] GpiDxe.efi
- 0x09D390000 [ 2010] UCDxe.efi
- 0x09D3C6000 [ 2014] RngDxe.efi
- 0x09D3BE000 [ 2015] SimpleTextInOutSerial.efi
- 0x09D386000 [ 2016] ConPlatformDxe.efi
- 0x09D369000 [ 2016] ConSplitterDxe.efi
- 0x09D35D000 [ 2017] GraphicsConsoleDxe.efi
- 0x09D37C000 [ 2018] ASN1X509Dxe.efi
- 0x09D3B3000 [ 2019] SecRSADxe.efi
- 0x09D348000 [ 2019] DtPlatformDxe.efi
  DtPlatformLoadDtb XXXxxxx-rb3.dtb is loaded
  DtPlatformDxeEntryPoint: no DT/ACPI preference found, defaulting to DTB
- 0x09D2A6000 [ 2030] SoftSKUDxe.efi
  SoftSKUDxeInitialize: SoftSKU not supported for this chip
  Error: Image at 0009D2A6000 start failed: Unsupported
- 0x09D2A6000 [ 2033] MinidumpTADxe.efi
  Image partition label not found
  LoadImageFromPartitionUsingGuid Failed: 14
  EFI_QseecomStartApp: Load Failed:  Status(0x800000000000000E)
  MinidumpTALib:LoadImageFromPartition(mdcompress) failed: 0xNot Found
  MinidumpTADxe: Minidump TA loading failed.
  Error: Image at 0009D2A6000 start failed: Not found
- 0x09D294000 [ 2037] UsbMsdDxe.efi
- 0x09D287000 [ 2038] UsbDeviceDxe.efi
- 0x09D2A7000 [ 2038] UsbInitDxe.efi
- 0x09D27E000 [ 2039] ParserDxe.efi
- 0x09D277000 [ 2040] SerialPortDxe.efi
  BDS Entry      [ 2040]
  Disp init wait [ 2040]
  -----------------------------
  Platform Init  [ 2057] BDS
  Boot Cycle : 1
  Run  Cycle : 1
  UEFI Ver   : 6.0.231205.BOOT.<XXX.x.x.Xx-xxxxx-XXXXXXX-x>
  Platform           : IOT
  Subtype            : 1
  Boot Device        : UFS
  Chip Name          : <XXXxxxx>
  Chip Ver           : 1.0
  Chip Serial Number : <0xXxxxxxx>
  Boot Core  : 0 AppsProcClkMHz
  -----------------------------
- 0x09D21C000 [ 2114] QcomChargerApp.efi
  Protective MBR validation might be needed.
  Protective MBR validation might be needed.
  ERROR: A bit not set !
  AppsProcClkMHz is zero
  Firmware update failed - Status: Unsupported
  Firmware provisioning failed
  Platform Init End : 2282
  -----------------------------
  [QcomBds] BootOrder not found
  Protective MBR validation might be needed.
  Protective MBR validation might be needed.
  [QcomBds] Enumerating non-removable boot options
  [QcomBds] Adding new boot/driver option Boot0000, Description: Non-removable Media
  Booting option 0:(Boot0000) "Non-removable Media"
  UEFI Total : 886 ms
  POST Time      [ 2454] OS Loader
- 0x1C22E0000 [ 2456]
- 0x1D1F80000 [ 2655]
- 0x1FDD00000 [ 2688]
  EFI stub: Booting Linux Kernel...
  EFI stub: Loaded initrd from LINUX_EFI_INITRD_MEDIA_GUID device path
  EFI stub: Using DTB from configuration table
  EFI stub: Exiting boot services...
  Start EBS        [ 2717]
  MDPUpdateDynamicClocks: Clock management not supported!
  MDPUpdateCoreClockAndBandwidth: MDPUpdateDynamicClocks failed!
  MDPLib: MDPUpdateCoreClockAndBandwidth failed!
  MDPUpdateDynamicClocks: Clock management not supported!
  MDPUpdateCoreClockAndBandwidth: MDPUpdateDynamicClocks failed!
  MDPLib: MDPUpdateCoreClockAndBandwidth failed!
  MDPLib: SW Render enabled, no Clocks disabled need
  MDPLib: SW Render enabled, no Clocks disabled need
  MDPLib: SW Render enabled, no Clocks disabled need
  MDPLib: SW Render enabled, no Clocks disabled need
  Successfully synced all UEFI tables
  Sync Duration = 40 ms
  Warning: Clearing A-bit !
  App Log Flush : 315 ms
  ScmArmV8ExitBootServicesHandler, Status = 0x0.
  Exit EBS
  ``[ 3086] UEFI End``