#include <Uefi.h>
#include <Protocol/BlockIo.h>
#include <Protocol/BlockIo2.h>
#include <Guid/Gpt.h>
#include <Protocol/ComponentName.h>
#include <Protocol/DevicePath.h>
#include <Protocol/DriverBinding.h>
#include <Protocol/DiskIo.h>
#include <Protocol/DiskIo2.h>
#include <Protocol/PartitionInfo.h>
#include <Library/DebugLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/BaseLib.h>
#include <Library/UefiLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/DevicePathLib.h>
#include <IndustryStandard/Mbr.h>
#include <IndustryStandard/ElTorito.h>
#include <IndustryStandard/Udf.h>

Data Structures
struct	PARTITION_PRIVATE_DATA

struct	PARTITION_ACCESS_TASK

struct	EFI_PARTITION_ENTRY_STATUS

Macros
#define	PARTITION_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('P', 'a', 'r', 't')

#define	PARTITION_DEVICE_FROM_BLOCK_IO_THIS(a) CR (a, PARTITION_PRIVATE_DATA, BlockIo, PARTITION_PRIVATE_DATA_SIGNATURE)

#define	PARTITION_DEVICE_FROM_BLOCK_IO2_THIS(a) CR (a, PARTITION_PRIVATE_DATA, BlockIo2, PARTITION_PRIVATE_DATA_SIGNATURE)

#define	UNPACK_INT32(a)

#define	UNPACK_UINT32(a)

Typedefs
typedef EFI_STATUS(*	PARTITION_DETECT_ROUTINE) (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE Handle, IN EFI_DISK_IO_PROTOCOL DiskIo, IN EFI_DISK_IO2_PROTOCOL DiskIo2, IN EFI_BLOCK_IO_PROTOCOL BlockIo, IN EFI_BLOCK_IO2_PROTOCOL BlockIo2, IN EFI_DEVICE_PATH_PROTOCOL DevicePath)

Functions
EFI_STATUS EFIAPI	PartitionDriverBindingSupported (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE ControllerHandle, IN EFI_DEVICE_PATH_PROTOCOL RemainingDevicePath)

EFI_STATUS EFIAPI	PartitionDriverBindingStart (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE ControllerHandle, IN EFI_DEVICE_PATH_PROTOCOL RemainingDevicePath)

EFI_STATUS EFIAPI	PartitionDriverBindingStop (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE ControllerHandle, IN UINTN NumberOfChildren, IN EFI_HANDLE ChildHandleBuffer)

EFI_STATUS EFIAPI	PartitionComponentNameGetDriverName (IN EFI_COMPONENT_NAME_PROTOCOL This, IN CHAR8 Language, OUT CHAR16 **DriverName)

EFI_STATUS EFIAPI	PartitionComponentNameGetControllerName (IN EFI_COMPONENT_NAME_PROTOCOL This, IN EFI_HANDLE ControllerHandle, IN EFI_HANDLE ChildHandle OPTIONAL, IN CHAR8 Language, OUT CHAR16 **ControllerName)

EFI_STATUS	PartitionInstallChildHandle (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE ParentHandle, IN EFI_DISK_IO_PROTOCOL ParentDiskIo, IN EFI_DISK_IO2_PROTOCOL ParentDiskIo2, IN EFI_BLOCK_IO_PROTOCOL ParentBlockIo, IN EFI_BLOCK_IO2_PROTOCOL ParentBlockIo2, IN EFI_DEVICE_PATH_PROTOCOL ParentDevicePath, IN EFI_DEVICE_PATH_PROTOCOL DevicePathNode, IN EFI_PARTITION_INFO_PROTOCOL PartitionInfo, IN EFI_LBA Start, IN EFI_LBA End, IN UINT32 BlockSize, IN EFI_GUID *TypeGuid)

BOOLEAN	HasChildren (IN EFI_HANDLE ControllerHandle)

EFI_STATUS	PartitionInstallGptChildHandles (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE Handle, IN EFI_DISK_IO_PROTOCOL DiskIo, IN EFI_DISK_IO2_PROTOCOL DiskIo2, IN EFI_BLOCK_IO_PROTOCOL BlockIo, IN EFI_BLOCK_IO2_PROTOCOL BlockIo2, IN EFI_DEVICE_PATH_PROTOCOL DevicePath)

EFI_STATUS	PartitionInstallElToritoChildHandles (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE Handle, IN EFI_DISK_IO_PROTOCOL DiskIo, IN EFI_DISK_IO2_PROTOCOL DiskIo2, IN EFI_BLOCK_IO_PROTOCOL BlockIo, IN EFI_BLOCK_IO2_PROTOCOL BlockIo2, IN EFI_DEVICE_PATH_PROTOCOL DevicePath)

EFI_STATUS	PartitionInstallMbrChildHandles (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE Handle, IN EFI_DISK_IO_PROTOCOL DiskIo, IN EFI_DISK_IO2_PROTOCOL DiskIo2, IN EFI_BLOCK_IO_PROTOCOL BlockIo, IN EFI_BLOCK_IO2_PROTOCOL BlockIo2, IN EFI_DEVICE_PATH_PROTOCOL DevicePath)

EFI_STATUS	PartitionInstallUdfChildHandles (IN EFI_DRIVER_BINDING_PROTOCOL This, IN EFI_HANDLE Handle, IN EFI_DISK_IO_PROTOCOL DiskIo, IN EFI_DISK_IO2_PROTOCOL DiskIo2, IN EFI_BLOCK_IO_PROTOCOL BlockIo, IN EFI_BLOCK_IO2_PROTOCOL BlockIo2, IN EFI_DEVICE_PATH_PROTOCOL DevicePath)

Variables
EFI_DRIVER_BINDING_PROTOCOL	gPartitionDriverBinding

EFI_COMPONENT_NAME_PROTOCOL	gPartitionComponentName

EFI_COMPONENT_NAME2_PROTOCOL	gPartitionComponentName2

Detailed Description

Partition driver that produces logical BlockIo devices from a physical BlockIo device. The logical BlockIo devices are based on the format of the raw block devices media. Currently "El Torito CD-ROM", UDF, Legacy MBR, and GPT partition schemes are supported.

Copyright (c) 2018 Qualcomm Datacenter Technologies, Inc. Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file Partition.h.

Macro Definition Documentation

◆ PARTITION_DEVICE_FROM_BLOCK_IO2_THIS

#define PARTITION_DEVICE_FROM_BLOCK_IO2_THIS ( a ) CR (a, PARTITION_PRIVATE_DATA, BlockIo2, PARTITION_PRIVATE_DATA_SIGNATURE)

Definition at line 72 of file Partition.h.

◆ PARTITION_DEVICE_FROM_BLOCK_IO_THIS

#define PARTITION_DEVICE_FROM_BLOCK_IO_THIS ( a ) CR (a, PARTITION_PRIVATE_DATA, BlockIo, PARTITION_PRIVATE_DATA_SIGNATURE)

Definition at line 71 of file Partition.h.

◆ PARTITION_PRIVATE_DATA_SIGNATURE

#define PARTITION_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('P', 'a', 'r', 't')

Definition at line 42 of file Partition.h.

◆ UNPACK_INT32

#define UNPACK_INT32 ( a )

Value:

                                 (INT32)( (((UINT8 *) a)[0] <<  0) |   \
                                 (((UINT8 *) a)[1] <<  8) |    \
                                 (((UINT8 *) a)[2] << 16) |    \
                                 (((UINT8 *) a)[3] << 24) )

Definition at line 84 of file Partition.h.

◆ UNPACK_UINT32

#define UNPACK_UINT32 ( a )

Value:

                                   (UINT32)( (((UINT8 *) a)[0] <<  0) |   \
                                   (((UINT8 *) a)[1] <<  8) |    \
                                   (((UINT8 *) a)[2] << 16) |    \
                                   (((UINT8 *) a)[3] << 24) )

Definition at line 92 of file Partition.h.

Typedef Documentation

◆ PARTITION_DETECT_ROUTINE

typedef EFI_STATUS(* PARTITION_DETECT_ROUTINE) (IN EFI_DRIVER_BINDING_PROTOCOL *This, IN EFI_HANDLE Handle, IN EFI_DISK_IO_PROTOCOL *DiskIo, IN EFI_DISK_IO2_PROTOCOL *DiskIo2, IN EFI_BLOCK_IO_PROTOCOL *BlockIo, IN EFI_BLOCK_IO2_PROTOCOL *BlockIo2, IN EFI_DEVICE_PATH_PROTOCOL *DevicePath)

Definition at line 472 of file Partition.h.

Function Documentation

◆ HasChildren()

BOOLEAN HasChildren ( IN EFI_HANDLE ControllerHandle )

Test to see if there is any child on ControllerHandle.

Parameters

[in] ControllerHandle Handle of device to test.

Return values

TRUE	There are children on the ControllerHandle.
FALSE	No child is on the ControllerHandle.

Definition at line 1355 of file Partition.c.

◆ PartitionComponentNameGetControllerName()

EFI_STATUS EFIAPI PartitionComponentNameGetControllerName	(	IN EFI_COMPONENT_NAME_PROTOCOL *	This,
		IN EFI_HANDLE	ControllerHandle,
		IN EFI_HANDLE ChildHandle	OPTIONAL,
		IN CHAR8 *	Language,
		OUT CHAR16 **	ControllerName
	)

Retrieves a Unicode string that is the user readable name of the controller that is being managed by a driver.

This function retrieves the user readable name of the controller specified by ControllerHandle and ChildHandle in the form of a Unicode string. If the driver specified by This has a user readable name in the language specified by Language, then a pointer to the controller name is returned in ControllerName, and EFI_SUCCESS is returned. If the driver specified by This is not currently managing the controller specified by ControllerHandle and ChildHandle, then EFI_UNSUPPORTED is returned. If the driver specified by This does not support the language specified by Language, then EFI_UNSUPPORTED is returned.

Parameters

This[in]	A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or EFI_COMPONENT_NAME_PROTOCOL instance.
ControllerHandle[in]	The handle of a controller that the driver specified by This is managing. This handle specifies the controller whose name is to be returned.
ChildHandle[in]	The handle of the child controller to retrieve the name of. This is an optional parameter that may be NULL. It will be NULL for device drivers. It will also be NULL for a bus drivers that wish to retrieve the name of the bus controller. It will not be NULL for a bus driver that wishes to retrieve the name of a child controller.
Language[in]	A pointer to a Null-terminated ASCII string array indicating the language. This is the language of the driver name that the caller is requesting, and it must match one of the languages specified in SupportedLanguages. The number of languages supported by a driver is up to the driver writer. Language is specified in RFC 4646 or ISO 639-2 language code format.
ControllerName[out]	A pointer to the Unicode string to return. This Unicode string is the name of the controller specified by ControllerHandle and ChildHandle in the language specified by Language from the point of view of the driver specified by This.

Return values

EFI_SUCCESS	The Unicode string for the user readable name in the language specified by Language for the driver specified by This was returned in DriverName.
EFI_INVALID_PARAMETER	ControllerHandle is not a valid EFI_HANDLE.
EFI_INVALID_PARAMETER	ChildHandle is not NULL and it is not a valid EFI_HANDLE.
EFI_INVALID_PARAMETER	Language is NULL.
EFI_INVALID_PARAMETER	ControllerName is NULL.
EFI_UNSUPPORTED	The driver specified by This is not currently managing the controller specified by ControllerHandle and ChildHandle.
EFI_UNSUPPORTED	The driver specified by This does not support the language specified by Language.

Retrieves a Unicode string that is the user readable name of the controller that is being managed by a driver.

This function retrieves the user readable name of the controller specified by ControllerHandle and ChildHandle in the form of a Unicode string. If the driver specified by This has a user readable name in the language specified by Language, then a pointer to the controller name is returned in ControllerName, and EFI_SUCCESS is returned. If the driver specified by This is not currently managing the controller specified by ControllerHandle and ChildHandle, then EFI_UNSUPPORTED is returned. If the driver specified by This does not support the language specified by Language, then EFI_UNSUPPORTED is returned.

Parameters

This[in]	A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or EFI_COMPONENT_NAME_PROTOCOL instance.
ControllerHandle[in]	The handle of a controller that the driver specified by This is managing. This handle specifies the controller whose name is to be returned.
ChildHandle[in]	The handle of the child controller to retrieve the name of. This is an optional parameter that may be NULL. It will be NULL for device drivers. It will also be NULL for a bus drivers that wish to retrieve the name of the bus controller. It will not be NULL for a bus driver that wishes to retrieve the name of a child controller.
Language[in]	A pointer to a Null-terminated ASCII string array indicating the language. This is the language of the driver name that the caller is requesting, and it must match one of the languages specified in SupportedLanguages. The number of languages supported by a driver is up to the driver writer. Language is specified in RFC 4646 or ISO 639-2 language code format.
ControllerName[out]	A pointer to the Unicode string to return. This Unicode string is the name of the controller specified by ControllerHandle and ChildHandle in the language specified by Language from the point of view of the driver specified by This.

Return values

EFI_SUCCESS	The Unicode string for the user readable name in the language specified by Language for the driver specified by This was returned in DriverName.
EFI_INVALID_PARAMETER	ControllerHandle is NULL.
EFI_INVALID_PARAMETER	ChildHandle is not NULL and it is not a valid EFI_HANDLE.
EFI_INVALID_PARAMETER	Language is NULL.
EFI_INVALID_PARAMETER	ControllerName is NULL.
EFI_UNSUPPORTED	The driver specified by This is not currently managing the controller specified by ControllerHandle and ChildHandle.
EFI_UNSUPPORTED	The driver specified by This does not support the language specified by Language.

Definition at line 170 of file ComponentName.c.

◆ PartitionComponentNameGetDriverName()

EFI_STATUS EFIAPI PartitionComponentNameGetDriverName	(	IN EFI_COMPONENT_NAME_PROTOCOL *	This,
		IN CHAR8 *	Language,
		OUT CHAR16 **	DriverName
	)

Retrieves a Unicode string that is the user readable name of the driver.

This function retrieves the user readable name of a driver in the form of a Unicode string. If the driver specified by This has a user readable name in the language specified by Language, then a pointer to the driver name is returned in DriverName, and EFI_SUCCESS is returned. If the driver specified by This does not support the language specified by Language, then EFI_UNSUPPORTED is returned.

Parameters

This[in]	A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or EFI_COMPONENT_NAME_PROTOCOL instance.
Language[in]	A pointer to a Null-terminated ASCII string array indicating the language. This is the language of the driver name that the caller is requesting, and it must match one of the languages specified in SupportedLanguages. The number of languages supported by a driver is up to the driver writer. Language is specified in RFC 4646 or ISO 639-2 language code format.
DriverName[out]	A pointer to the Unicode string to return. This Unicode string is the name of the driver specified by This in the language specified by Language.

Return values

EFI_SUCCESS	The Unicode string for the Driver specified by This and the language specified by Language was returned in DriverName.
EFI_INVALID_PARAMETER	Language is NULL.
EFI_INVALID_PARAMETER	DriverName is NULL.
EFI_UNSUPPORTED	The driver specified by This does not support the language specified by Language.

Definition at line 85 of file ComponentName.c.

◆ PartitionDriverBindingStart()

EFI_STATUS EFIAPI PartitionDriverBindingStart	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	ControllerHandle,
		IN EFI_DEVICE_PATH_PROTOCOL *	RemainingDevicePath
	)

Start this driver on ControllerHandle by opening a Block IO and Disk IO protocol, reading Device Path, and creating a child handle with a Disk IO and device path protocol.

Parameters

This	Protocol instance pointer.
ControllerHandle	Handle of device to bind driver to
RemainingDevicePath	Optional parameter use to pick a specific child device to start.

Return values

EFI_SUCCESS	This driver is added to ControllerHandle
EFI_ALREADY_STARTED	This driver is already running on ControllerHandle
other	This driver does not support this device

Start this driver on ControllerHandle by opening a Block IO or a Block IO2 or both, and Disk IO protocol, reading Device Path, and creating a child handle with a Disk IO and device path protocol.

Parameters

[in]	This	Protocol instance pointer.
[in]	ControllerHandle	Handle of device to bind driver to
[in]	RemainingDevicePath	Optional parameter use to pick a specific child device to start.

Return values

EFI_SUCCESS	This driver is added to ControllerHandle
EFI_ALREADY_STARTED	This driver is already running on ControllerHandle
other	This driver does not support this device

Definition at line 194 of file Partition.c.

◆ PartitionDriverBindingStop()

EFI_STATUS EFIAPI PartitionDriverBindingStop	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	ControllerHandle,
		IN UINTN	NumberOfChildren,
		IN EFI_HANDLE *	ChildHandleBuffer
	)

Stop this driver on ControllerHandle. Support stopping any child handles created by this driver.

Parameters

This	Protocol instance pointer.
ControllerHandle	Handle of device to stop driver on
NumberOfChildren	Number of Handles in ChildHandleBuffer. If number of children is zero stop the entire bus driver.
ChildHandleBuffer	List of Child Handles to Stop.

Return values

EFI_SUCCESS	This driver is removed ControllerHandle
other	This driver was not removed from this device

Definition at line 399 of file Partition.c.

◆ PartitionDriverBindingSupported()

EFI_STATUS EFIAPI PartitionDriverBindingSupported	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	ControllerHandle,
		IN EFI_DEVICE_PATH_PROTOCOL *	RemainingDevicePath
	)

Test to see if this driver supports ControllerHandle. Any ControllerHandle than contains a BlockIo and DiskIo protocol can be supported.

Parameters

This	Protocol instance pointer.
ControllerHandle	Handle of device to test
RemainingDevicePath	Optional parameter use to pick a specific child device to start.

Return values

EFI_SUCCESS	This driver supports this device
EFI_ALREADY_STARTED	This driver is already running on this device
other	This driver does not support this device

Test to see if this driver supports ControllerHandle. Any ControllerHandle than contains a BlockIo and DiskIo protocol or a BlockIo2 protocol can be supported.

Parameters

[in]	This	Protocol instance pointer.
[in]	ControllerHandle	Handle of device to test.
[in]	RemainingDevicePath	Optional parameter use to pick a specific child device to start.

Return values

EFI_SUCCESS	This driver supports this device
EFI_ALREADY_STARTED	This driver is already running on this device
other	This driver does not support this device

Definition at line 70 of file Partition.c.

◆ PartitionInstallChildHandle()

EFI_STATUS PartitionInstallChildHandle	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	ParentHandle,
		IN EFI_DISK_IO_PROTOCOL *	ParentDiskIo,
		IN EFI_DISK_IO2_PROTOCOL *	ParentDiskIo2,
		IN EFI_BLOCK_IO_PROTOCOL *	ParentBlockIo,
		IN EFI_BLOCK_IO2_PROTOCOL *	ParentBlockIo2,
		IN EFI_DEVICE_PATH_PROTOCOL *	ParentDevicePath,
		IN EFI_DEVICE_PATH_PROTOCOL *	DevicePathNode,
		IN EFI_PARTITION_INFO_PROTOCOL *	PartitionInfo,
		IN EFI_LBA	Start,
		IN EFI_LBA	End,
		IN UINT32	BlockSize,
		IN EFI_GUID *	TypeGuid
	)

Create a child handle for a logical block device that represents the bytes Start to End of the Parent Block IO device.

Parameters

[in]	This	Protocol instance pointer.
[in]	ParentHandle	Parent Handle for new child.
[in]	ParentDiskIo	Parent DiskIo interface.
[in]	ParentDiskIo2	Parent DiskIo2 interface.
[in]	ParentBlockIo	Parent BlockIo interface.
[in]	ParentBlockIo2	Parent BlockIo2 interface.
[in]	ParentDevicePath	Parent Device Path.
[in]	DevicePathNode	Child Device Path node.
[in]	PartitionInfo	Child Partition Information interface.
[in]	Start	Start Block.
[in]	End	End Block.
[in]	BlockSize	Child block size.
[in]	TypeGuid	Parition Type Guid.

Return values

EFI_SUCCESS	A child handle was added.
other	A child handle was not added.

Create a child handle for a logical block device that represents the bytes Start to End of the Parent Block IO device.

Parameters

[in]	This	Protocol instance pointer.
[in]	ParentHandle	Parent Handle for new child.
[in]	ParentDiskIo	Parent DiskIo interface.
[in]	ParentDiskIo2	Parent DiskIo2 interface.
[in]	ParentBlockIo	Parent BlockIo interface.
[in]	ParentBlockIo2	Parent BlockIo2 interface.
[in]	ParentDevicePath	Parent Device Path.
[in]	DevicePathNode	Child Device Path node.
[in]	PartitionInfo	Child Partition Information interface.
[in]	Start	Start Block.
[in]	End	End Block.
[in]	BlockSize	Child block size.
[in]	TypeGuid	Partition GUID Type.

Return values

EFI_SUCCESS	A child handle was added.
other	A child handle was not added.

Definition at line 1134 of file Partition.c.

◆ PartitionInstallElToritoChildHandles()

EFI_STATUS PartitionInstallElToritoChildHandles	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	Handle,
		IN EFI_DISK_IO_PROTOCOL *	DiskIo,
		IN EFI_DISK_IO2_PROTOCOL *	DiskIo2,
		IN EFI_BLOCK_IO_PROTOCOL *	BlockIo,
		IN EFI_BLOCK_IO2_PROTOCOL *	BlockIo2,
		IN EFI_DEVICE_PATH_PROTOCOL *	DevicePath
	)

Install child handles if the Handle supports El Torito format.

Parameters

[in]	This	Calling context.
[in]	Handle	Parent Handle.
[in]	DiskIo	Parent DiskIo interface.
[in]	DiskIo2	Parent DiskIo2 interface.
[in]	BlockIo	Parent BlockIo interface.
[in]	BlockIo2	Parent BlockIo2 interface.
[in]	DevicePath	Parent Device Path

Return values

EFI_SUCCESS	Child handle(s) was added.
EFI_MEDIA_CHANGED	Media changed Detected.
other	no child handle was added.

Definition at line 30 of file ElTorito.c.

◆ PartitionInstallGptChildHandles()

EFI_STATUS PartitionInstallGptChildHandles	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	Handle,
		IN EFI_DISK_IO_PROTOCOL *	DiskIo,
		IN EFI_DISK_IO2_PROTOCOL *	DiskIo2,
		IN EFI_BLOCK_IO_PROTOCOL *	BlockIo,
		IN EFI_BLOCK_IO2_PROTOCOL *	BlockIo2,
		IN EFI_DEVICE_PATH_PROTOCOL *	DevicePath
	)

Install child handles if the Handle supports GPT partition structure.

Parameters

[in]	This	Calling context.
[in]	Handle	Parent Handle.
[in]	DiskIo	Parent DiskIo interface.
[in]	DiskIo2	Parent DiskIo2 interface.
[in]	BlockIo	Parent BlockIo interface.
[in]	BlockIo2	Parent BlockIo2 interface.
[in]	DevicePath	Parent Device Path.

Return values

EFI_SUCCESS	Valid GPT disk.
EFI_MEDIA_CHANGED	Media changed Detected.
EFI_INVALID_PARAMETER	If both BlockIo and BlockIo2 are NULL;
other	Not a valid GPT disk.

Install child handles if the Handle supports GPT partition structure.

Caution: This function may receive untrusted input. The GPT partition table is external input, so this routine will do basic validation for GPT partition table before install child handle for each GPT partition.

Parameters

[in]	This	Calling context.
[in]	Handle	Parent Handle.
[in]	DiskIo	Parent DiskIo interface.
[in]	DiskIo2	Parent DiskIo2 interface.
[in]	BlockIo	Parent BlockIo interface.
[in]	BlockIo2	Parent BlockIo2 interface.
[in]	DevicePath	Parent Device Path.

Return values

EFI_SUCCESS	Valid GPT disk.
EFI_MEDIA_CHANGED	Media changed Detected.
other	Not a valid GPT disk.

Definition at line 186 of file Gpt.c.

◆ PartitionInstallMbrChildHandles()

EFI_STATUS PartitionInstallMbrChildHandles	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	Handle,
		IN EFI_DISK_IO_PROTOCOL *	DiskIo,
		IN EFI_DISK_IO2_PROTOCOL *	DiskIo2,
		IN EFI_BLOCK_IO_PROTOCOL *	BlockIo,
		IN EFI_BLOCK_IO2_PROTOCOL *	BlockIo2,
		IN EFI_DEVICE_PATH_PROTOCOL *	DevicePath
	)

Install child handles if the Handle supports MBR format.

Parameters

[in]	This	Calling context.
[in]	Handle	Parent Handle.
[in]	DiskIo	Parent DiskIo interface.
[in]	DiskIo2	Parent DiskIo2 interface.
[in]	BlockIo	Parent BlockIo interface.
[in]	BlockIo2	Parent BlockIo2 interface.
[in]	DevicePath	Parent Device Path.

Return values

EFI_SUCCESS	A child handle was added.
EFI_MEDIA_CHANGED	Media change was detected.
Others	MBR partition was not found.

Definition at line 118 of file Mbr.c.

◆ PartitionInstallUdfChildHandles()

EFI_STATUS PartitionInstallUdfChildHandles	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	Handle,
		IN EFI_DISK_IO_PROTOCOL *	DiskIo,
		IN EFI_DISK_IO2_PROTOCOL *	DiskIo2,
		IN EFI_BLOCK_IO_PROTOCOL *	BlockIo,
		IN EFI_BLOCK_IO2_PROTOCOL *	BlockIo2,
		IN EFI_DEVICE_PATH_PROTOCOL *	DevicePath
	)

Install child handles if the Handle supports UDF/ECMA-167 volume format.

Parameters

[in]	This	Calling context.
[in]	Handle	Parent Handle.
[in]	DiskIo	Parent DiskIo interface.
[in]	DiskIo2	Parent DiskIo2 interface.
[in]	BlockIo	Parent BlockIo interface.
[in]	BlockIo2	Parent BlockIo2 interface.
[in]	DevicePath	Parent Device Path

Return values

EFI_SUCCESS	Child handle(s) was added.
EFI_MEDIA_CHANGED	Media changed Detected.
other	no child handle was added.

Definition at line 738 of file Udf.c.

Variable Documentation

◆ gPartitionComponentName

EFI_COMPONENT_NAME_PROTOCOL gPartitionComponentName

extern

Definition at line 14 of file ComponentName.c.

◆ gPartitionComponentName2

EFI_COMPONENT_NAME2_PROTOCOL gPartitionComponentName2

extern

Definition at line 23 of file ComponentName.c.

◆ gPartitionDriverBinding

EFI_DRIVER_BINDING_PROTOCOL gPartitionDriverBinding

extern

Definition at line 18 of file Partition.c.

Data Structures

Macros

Typedefs

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ PARTITION_DEVICE_FROM_BLOCK_IO2_THIS

◆ PARTITION_DEVICE_FROM_BLOCK_IO_THIS

◆ PARTITION_PRIVATE_DATA_SIGNATURE

◆ UNPACK_INT32

◆ UNPACK_UINT32

Typedef Documentation

◆ PARTITION_DETECT_ROUTINE

Function Documentation

◆ HasChildren()

◆ PartitionComponentNameGetControllerName()

◆ PartitionComponentNameGetDriverName()

◆ PartitionDriverBindingStart()

◆ PartitionDriverBindingStop()

◆ PartitionDriverBindingSupported()

◆ PartitionInstallChildHandle()

◆ PartitionInstallElToritoChildHandles()

◆ PartitionInstallGptChildHandles()

◆ PartitionInstallMbrChildHandles()

◆ PartitionInstallUdfChildHandles()

Variable Documentation

◆ gPartitionComponentName

◆ gPartitionComponentName2

◆ gPartitionDriverBinding