EFI_HOB_MEMORY_ALLOCATION_HEADER Struct Reference

Data Fields
EFI_GUID	Name
EFI_PHYSICAL_ADDRESS	MemoryBaseAddress
UINT64	MemoryLength
EFI_MEMORY_TYPE	MemoryType
UINT8	Reserved [4]

Detailed Description

EFI_HOB_MEMORY_ALLOCATION_HEADER describes the various attributes of the logical memory allocation. The type field will be used for subsequent inclusion in the UEFI memory map.

Field Documentation

EFI_PHYSICAL_ADDRESS EFI_HOB_MEMORY_ALLOCATION_HEADER::MemoryBaseAddress

The base address of memory allocated by this HOB. Type EFI_PHYSICAL_ADDRESS is defined in AllocatePages() in the UEFI 2.0 specification.

UINT64 EFI_HOB_MEMORY_ALLOCATION_HEADER::MemoryLength

The length in bytes of memory allocated by this HOB.

EFI_MEMORY_TYPE EFI_HOB_MEMORY_ALLOCATION_HEADER::MemoryType

Defines the type of memory allocated by this HOB. The memory type definition follows the EFI_MEMORY_TYPE definition. Type EFI_MEMORY_TYPE is defined in AllocatePages() in the UEFI 2.0 specification.

EFI_GUID EFI_HOB_MEMORY_ALLOCATION_HEADER::Name

A GUID that defines the memory allocation region's type and purpose, as well as other fields within the memory allocation HOB. This GUID is used to define the additional data within the HOB that may be present for the memory allocation HOB. Type EFI_GUID is defined in InstallProtocolInterface() in the UEFI 2.0 specification.

UINT8 EFI_HOB_MEMORY_ALLOCATION_HEADER::Reserved[4]

Padding for Itanium processor family