A.1 Firmware Volume Layout

This is a logical firmware volume layout by stage.

Binary

FV

Components

Purpose

Stage I

FvPreMemory.fv

SecCore.efi

Reset Vector

Passes PEI core the address of FvFspmM

Passes PEI core the debug configuration

ReportFvPei.efi

Installs firmware volumes

SiliconPolicyPeiPreMemory.efi

Publishes silicon initialization configuration

PlatformInitPreMemory.efi

Performs pre memory initialization

FvSecurityPreMemory.fv</br>(child FV)

    Tcg2Pei.efi

TPM2 initialization

    Tcg2ConfigPei.efi

TPM2 selection

    Tcg2PlatformPei.efi

TPM2 platform module

    Additional Components

Additional pre-memory components required for Stage V boot

Additional Components

Additional pre-memory components required for Stage I boot

FvBspPreMemory.fv

FvAdvancedPreMemory.fv</br>(child FV)

    Additional Components

Advanced feature pre-memory stacks

Additional Components

Additional pre-memory board support components

FvFspT.fv

PlatformSec.efi

Initializes T-RAM silicon functionality

Tests T-RAM functionality

Additional Components

FvFspM.fv

PeiCore.efi

PEI services and dispatcher

PcdPeim.efi

PCD service

FspPlatform.efi

Converts UPD to Policy PPI

FvPreMemorySilicon.fv</br>(child FV)

    Additional Components

Pre-memory silicon initialization components

ReportStatusCodeRouterPei.efi

Provide status code infrastructure

StatusCodeHandlerPei.efi

Provide status code listeners

Additional Components

FvFspS.fv

FvPostMemorySilicon.fv</br>(child FV)

    Additional Components

Post-memory silicon initialization components

Additional components

Binary

FV

Components

Purpose

Stage II

FvPostMemory.fv

ReadOnlyVariable.efi

Common core variable services

SiliconPolicyPeiPostMemory.efi

Publishes silicon initialization configuration

PlatformInitPostMemory.efi

Performs post memory initialization

DxeIpl.efi

Load and invoke DXE

ResetSystemRuntimeDxe.efi

Provides reset service

PciHostBridge.efi

PCI host bridge driver

Additional Components

Additional post-memory components required for Stage II boot

FvBsp.fv

Additional Components

Post-memory board support components

Binary

FV

Components

Purpose

Stage III

FvUefiBoot.fv

DxeCore.efi

DXE services and dispatcher

PcdDxe.efi

Provides PCD services

ReportStatusCodeRouterDxe.efi

Provides status code infrastructure

StatusCodeHandlerRuntimeDxe.efi

Provides status code listeners

BdsDxe.efi

Provides Boot Device Selection phase

CpuDxe.efi

Provides processor services

Metronome.efi

Provides metronome HW abstraction

MonotonicCounterRuntimeDxe.efi

Provides monotonic counter service

PcatRealTimeClockRuntimeDxe.efi

Provides RTC abstraction

WatchdogTimer.efi

Provides watchdog timer service

RuntimeDxe.efi

Provides UEFI runtime service functionality

Security.efi

Provides security services to core

HpetTimerDxe.efi

Provide timer service

EmuVariableRuntimeDxe.efi

Provides UEFI variable service

CapsuleRuntimeDxe.efi

Provides capsule service

PciBusDxe.efi

PCI bus driver

GraphicsOutputDxe.efi

Provides graphics support

TerminalDxe.efi

Provides terminal services

GraphicsConsoleDxe.efi

Provides graphics console

ConSplitterDxe.efi

Provides multi console support

EnglishDxe.efi

Provides Unicode collation services

MemoryTest.efi

Provide memory test

DevicePathDxe.efi

Provides device path services

DiskIo.efi

Provides disk IO services

Partition.efi

Provides disk partition services

Fat.efi

Provides FAT filesystem services

Additional Components

Additional post-memory components required for Stage III boot

Binary

FV

Components

Purpose

Stage IV

FvOsBoot.fv

FvLateSilicon.fv (child FV)

    Additional Components

Additional silicon initialization support that is performed late in the boot

AcpiTable.efi

Provides common ACPI services

PlatformAcpi.efi

Provides MinPlatform ACPI content

BoardAcpi.efi

Provides board ACPI content

PiSmmIpl.efi

SMM initial loader

PiSmmCore.efi

SMM core services

ReportStatusCodeRouterSmm.efi

SMM status code infrastructure

StatusCodeHandlerSmm.efi

SMM status code handlers

PiSmmCpu.efi

SMM CPU services

CpuIo2Smm.efi

SMM CPU IO services

FaultTolerantWriteSmm.efi

SMM fault tolerant write services

SpiFvbServiceSmm.efi

SMM SPI FLASH services

Additional Components

Additional post-memory components required for Stage IV boot

Binary

FV

Components

Purpose

Stage V

FvSecurity.fv

Tcg2Dxe.efi

TPM2 services

Tcg2ConfigDxe.efi

TPM2 configuration UI

Tcg2PlatformDxe.efi

TPM2 platform module

Tcg2Smm.efi

TPM2 ACPI services

TcgMor.efi

TCG Memory Override support

IntelVTdPmrPei.efi

IOMMU PEI services

IntelVTdDxe.efi

IOMMU DXE services

SecurityStubDxe.efi

Provide security architecture protocol.

FaultTolerantWriteSmm.efi

Fault-tolerant services in SMM.

VariableSmm.efi

Provide Variable service in SMM.

VariableSmmRuntimeDxe.efi

Provide Variable service in UEFI.

SecureBootConfigDxe.efi

SecureBoot configuration UI.

Additional Components

Additional post-memory components required for Stage V boot

Binary

FV

Components

Purpose

Stage VI

FvAdvancedPreMemory.fv

FeatureStack1.fv (child FV)

Feature 1

FeatureStack2.fv (child FV)

Feature 2

FvAdvanced.fv

FeatureStack1.fv (child FV)

Feature 1

FeatureStack2.fv (child FV)

Feature 2

FeatureStack3.fv (child FV)

Feature 3

Additional Feature Stacks

Features

Table 71 Full Firmware Volume Layout