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