#include <DevicePath.h>

Collaboration diagram for HARDDRIVE_DEVICE_PATH:

Public Attributes
EFI_DEVICE_PATH_PROTOCOL	Header

UINT32	PartitionNumber

UINT64	PartitionStart

UINT64	PartitionSize

UINT8	Signature [16]

UINT8	MBRType

UINT8	SignatureType

Detailed Description

The Hard Drive Media Device Path is used to represent a partition on a hard drive.

Definition at line 852 of file DevicePath.h.

Member Data Documentation

◆ Header

EFI_DEVICE_PATH_PROTOCOL HARDDRIVE_DEVICE_PATH::Header

Definition at line 853 of file DevicePath.h.

◆ MBRType

UINT8 HARDDRIVE_DEVICE_PATH::MBRType

Partition Format: (Unused values reserved). 0x01 - PC-AT compatible legacy MBR. 0x02 - GUID Partition Table.

Definition at line 882 of file DevicePath.h.

◆ PartitionNumber

UINT32 HARDDRIVE_DEVICE_PATH::PartitionNumber

Describes the entry in a partition table, starting with entry 1. Partition number zero represents the entire device. Valid partition numbers for a MBR partition are [1, 4]. Valid partition numbers for a GPT partition are [1, NumberOfPartitionEntries].

Definition at line 860 of file DevicePath.h.

Referenced by EfiInitTranslateDevicePath().

◆ PartitionSize

UINT64 HARDDRIVE_DEVICE_PATH::PartitionSize

Size of the partition in units of Logical Blocks.

Definition at line 868 of file DevicePath.h.

◆ PartitionStart

UINT64 HARDDRIVE_DEVICE_PATH::PartitionStart

Starting LBA of the partition on the hard drive.

Definition at line 864 of file DevicePath.h.

◆ Signature

UINT8 HARDDRIVE_DEVICE_PATH::Signature[16]

Signature unique to this partition: If SignatureType is 0, this field has to be initialized with 16 zeros. If SignatureType is 1, the MBR signature is stored in the first 4 bytes of this field. The other 12 bytes are initialized with zeros. If SignatureType is 2, this field contains a 16 byte signature.

Definition at line 876 of file DevicePath.h.

Referenced by BlockIoEfiGetDeviceInformation(), and EfiInitTranslateDevicePath().

◆ SignatureType

UINT8 HARDDRIVE_DEVICE_PATH::SignatureType

Type of Disk Signature: (Unused values reserved). 0x00 - No Disk Signature. 0x01 - 32-bit signature from address 0x1b8 of the type 0x01 MBR. 0x02 - GUID signature.

Definition at line 889 of file DevicePath.h.