#include <Uefi.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/UefiLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiHiiServicesLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/HiiLib.h>
#include <Library/FileExplorerLib.h>
#include <Library/DevicePathLib.h>
#include <Library/PrintLib.h>
#include <Library/PcdLib.h>
#include <Library/DxeServicesLib.h>
#include <Protocol/RamDisk.h>
#include <Protocol/BlockIo.h>
#include <Protocol/BlockIo2.h>
#include <Protocol/HiiConfigAccess.h>
#include <Protocol/SimpleFileSystem.h>
#include <Protocol/AcpiTable.h>
#include <Protocol/AcpiSystemDescriptionTable.h>
#include <Guid/MdeModuleHii.h>
#include <Guid/RamDiskHii.h>
#include <Guid/FileInfo.h>
#include <IndustryStandard/Acpi61.h>
#include "RamDiskNVData.h"

Data Structures
struct	RAM_DISK_PRIVATE_DATA

struct	HII_VENDOR_DEVICE_PATH

struct	RAM_DISK_CONFIG_PRIVATE_DATA

Macros
#define	RAM_DISK_DEFAULT_BLOCK_SIZE 512

#define	RAM_DISK_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('R', 'D', 'S', 'K')

#define	RAM_DISK_PRIVATE_FROM_BLKIO(a) CR (a, RAM_DISK_PRIVATE_DATA, BlockIo, RAM_DISK_PRIVATE_DATA_SIGNATURE)

#define	RAM_DISK_PRIVATE_FROM_BLKIO2(a) CR (a, RAM_DISK_PRIVATE_DATA, BlockIo2, RAM_DISK_PRIVATE_DATA_SIGNATURE)

#define	RAM_DISK_PRIVATE_FROM_THIS(a) CR (a, RAM_DISK_PRIVATE_DATA, ThisInstance, RAM_DISK_PRIVATE_DATA_SIGNATURE)

#define	RAM_DISK_CONFIG_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('R', 'C', 'F', 'G')

#define	RAM_DISK_CONFIG_PRIVATE_FROM_THIS(a) CR (a, RAM_DISK_CONFIG_PRIVATE_DATA, ConfigAccess, RAM_DISK_CONFIG_PRIVATE_DATA_SIGNATURE)

Typedefs
typedef enum _RAM_DISK_CREATE_METHOD	RAM_DISK_CREATE_METHOD

Enumerations
enum	_RAM_DISK_CREATE_METHOD { RamDiskCreateOthers = 0 , RamDiskCreateHii }

Functions
EFI_STATUS EFIAPI	RamDiskRegister (IN UINT64 RamDiskBase, IN UINT64 RamDiskSize, IN EFI_GUID RamDiskType, IN EFI_DEVICE_PATH ParentDevicePath OPTIONAL, OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath)

EFI_STATUS EFIAPI	RamDiskUnregister (IN EFI_DEVICE_PATH_PROTOCOL *DevicePath)

VOID	RamDiskInitBlockIo (IN RAM_DISK_PRIVATE_DATA *PrivateData)

EFI_STATUS EFIAPI	RamDiskBlkIoReset (IN EFI_BLOCK_IO_PROTOCOL *This, IN BOOLEAN ExtendedVerification)

EFI_STATUS EFIAPI	RamDiskBlkIoReadBlocks (IN EFI_BLOCK_IO_PROTOCOL This, IN UINT32 MediaId, IN EFI_LBA Lba, IN UINTN BufferSize, OUT VOID Buffer)

EFI_STATUS EFIAPI	RamDiskBlkIoWriteBlocks (IN EFI_BLOCK_IO_PROTOCOL This, IN UINT32 MediaId, IN EFI_LBA Lba, IN UINTN BufferSize, IN VOID Buffer)

EFI_STATUS EFIAPI	RamDiskBlkIoFlushBlocks (IN EFI_BLOCK_IO_PROTOCOL *This)

EFI_STATUS EFIAPI	RamDiskBlkIo2Reset (IN EFI_BLOCK_IO2_PROTOCOL *This, IN BOOLEAN ExtendedVerification)

EFI_STATUS EFIAPI	RamDiskBlkIo2ReadBlocksEx (IN EFI_BLOCK_IO2_PROTOCOL This, IN UINT32 MediaId, IN EFI_LBA Lba, IN OUT EFI_BLOCK_IO2_TOKEN Token, IN UINTN BufferSize, OUT VOID *Buffer)

EFI_STATUS EFIAPI	RamDiskBlkIo2WriteBlocksEx (IN EFI_BLOCK_IO2_PROTOCOL This, IN UINT32 MediaId, IN EFI_LBA Lba, IN OUT EFI_BLOCK_IO2_TOKEN Token, IN UINTN BufferSize, IN VOID *Buffer)

EFI_STATUS EFIAPI	RamDiskBlkIo2FlushBlocksEx (IN EFI_BLOCK_IO2_PROTOCOL This, IN OUT EFI_BLOCK_IO2_TOKEN Token)

EFI_STATUS	InstallRamDiskConfigForm (IN OUT RAM_DISK_CONFIG_PRIVATE_DATA *ConfigPrivateData)

VOID	UninstallRamDiskConfigForm (IN OUT RAM_DISK_CONFIG_PRIVATE_DATA *ConfigPrivateData)

VOID	UnregisterAllRamDisks (VOID)

EFI_STATUS EFIAPI	RamDiskExtractConfig (IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL This, IN CONST EFI_STRING Request, OUT EFI_STRING Progress, OUT EFI_STRING *Results)

EFI_STATUS EFIAPI	RamDiskRouteConfig (IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL This, IN CONST EFI_STRING Configuration, OUT EFI_STRING Progress)

EFI_STATUS EFIAPI	RamDiskCallback (IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL This, IN EFI_BROWSER_ACTION Action, IN EFI_QUESTION_ID QuestionId, IN UINT8 Type, IN EFI_IFR_TYPE_VALUE Value, OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest)

EFI_FILE_INFO *	FileInfo (IN EFI_FILE_HANDLE FHand)

EFI_STATUS	RamDiskPublishNfit (IN RAM_DISK_PRIVATE_DATA *PrivateData)

Variables
LIST_ENTRY	RegisteredRamDisks

EFI_ACPI_TABLE_PROTOCOL *	mAcpiTableProtocol

EFI_ACPI_SDT_PROTOCOL *	mAcpiSdtProtocol

UINT8	RamDiskHiiBin []

UINT8	RamDiskDxeStrings []

RAM_DISK_CONFIG_PRIVATE_DATA	mRamDiskConfigPrivateDataTemplate

Detailed Description

The header file of RamDiskDxe driver.

Copyright (c) 2016 - 2019, Intel Corporation. All rights reserved.
Copyright (c) Microsoft Corporation.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file RamDiskImpl.h.

Macro Definition Documentation

◆ RAM_DISK_CONFIG_PRIVATE_DATA_SIGNATURE

#define RAM_DISK_CONFIG_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('R', 'C', 'F', 'G')

Definition at line 129 of file RamDiskImpl.h.

◆ RAM_DISK_CONFIG_PRIVATE_FROM_THIS

#define RAM_DISK_CONFIG_PRIVATE_FROM_THIS ( a ) CR (a, RAM_DISK_CONFIG_PRIVATE_DATA, ConfigAccess, RAM_DISK_CONFIG_PRIVATE_DATA_SIGNATURE)

Definition at line 130 of file RamDiskImpl.h.

◆ RAM_DISK_DEFAULT_BLOCK_SIZE

#define RAM_DISK_DEFAULT_BLOCK_SIZE 512

RAM disk general definitions and declarations

Definition at line 49 of file RamDiskImpl.h.

◆ RAM_DISK_PRIVATE_DATA_SIGNATURE

#define RAM_DISK_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('R', 'D', 'S', 'K')

Definition at line 97 of file RamDiskImpl.h.

◆ RAM_DISK_PRIVATE_FROM_BLKIO

#define RAM_DISK_PRIVATE_FROM_BLKIO ( a ) CR (a, RAM_DISK_PRIVATE_DATA, BlockIo, RAM_DISK_PRIVATE_DATA_SIGNATURE)

Definition at line 98 of file RamDiskImpl.h.

◆ RAM_DISK_PRIVATE_FROM_BLKIO2

#define RAM_DISK_PRIVATE_FROM_BLKIO2 ( a ) CR (a, RAM_DISK_PRIVATE_DATA, BlockIo2, RAM_DISK_PRIVATE_DATA_SIGNATURE)

Definition at line 99 of file RamDiskImpl.h.

◆ RAM_DISK_PRIVATE_FROM_THIS

#define RAM_DISK_PRIVATE_FROM_THIS ( a ) CR (a, RAM_DISK_PRIVATE_DATA, ThisInstance, RAM_DISK_PRIVATE_DATA_SIGNATURE)

Definition at line 100 of file RamDiskImpl.h.

Enumeration Type Documentation

◆ _RAM_DISK_CREATE_METHOD

enum _RAM_DISK_CREATE_METHOD

Definition at line 65 of file RamDiskImpl.h.

Function Documentation

◆ FileInfo()

EFI_FILE_INFO * FileInfo ( IN EFI_FILE_HANDLE FHand )

This function gets the file information from an open file descriptor, and stores it in a buffer allocated from pool.

Parameters

[in] FHand File Handle.

Returns: A pointer to a buffer with file information or NULL is returned.

Definition at line 79 of file RamDiskFileExplorer.c.

◆ InstallRamDiskConfigForm()

EFI_STATUS InstallRamDiskConfigForm ( IN OUT RAM_DISK_CONFIG_PRIVATE_DATA * ConfigPrivateData )

This function publish the RAM disk configuration Form.

Parameters

[in,out] ConfigPrivateData Points to RAM disk configuration private data.

Return values

EFI_SUCCESS	HII Form is installed successfully.
EFI_OUT_OF_RESOURCES	Not enough resource for HII Form installation.
Others	Other errors as indicated.

Definition at line 62 of file RamDiskImpl.c.

◆ RamDiskBlkIo2FlushBlocksEx()

EFI_STATUS EFIAPI RamDiskBlkIo2FlushBlocksEx	(	IN EFI_BLOCK_IO2_PROTOCOL *	This,
		IN OUT EFI_BLOCK_IO2_TOKEN *	Token
	)

Flushes all modified data to a physical block device.

Parameters

[in]	This	Indicates a pointer to the calling context.
[in,out]	Token	A pointer to the token associated with the transaction.

Return values

EFI_SUCCESS	The flush request was queued if Event is not NULL. All outstanding data was written correctly to the device if the Event is NULL.
EFI_DEVICE_ERROR	The device reported an error while attempting to write data.
EFI_WRITE_PROTECTED	The device cannot be written to.
EFI_NO_MEDIA	There is no media in the device.
EFI_MEDIA_CHANGED	The MediaId is not for the current media.
EFI_OUT_OF_RESOURCES	The request could not be completed due to a lack of resources.

Definition at line 458 of file RamDiskBlockIo.c.

◆ RamDiskBlkIo2ReadBlocksEx()

EFI_STATUS EFIAPI RamDiskBlkIo2ReadBlocksEx	(	IN EFI_BLOCK_IO2_PROTOCOL *	This,
		IN UINT32	MediaId,
		IN EFI_LBA	Lba,
		IN OUT EFI_BLOCK_IO2_TOKEN *	Token,
		IN UINTN	BufferSize,
		OUT VOID *	Buffer
	)

Reads the requested number of blocks from the device.

Parameters

[in]	This	Indicates a pointer to the calling context.
[in]	MediaId	The media ID that the read request is for.
[in]	Lba	The starting logical block address to read from on the device.
[in,out]	Token	A pointer to the token associated with the transaction.
[in]	BufferSize	The size of the Buffer in bytes. This must be a multiple of the intrinsic block size of the device.
[out]	Buffer	A pointer to the destination buffer for the data. The caller is responsible for either having implicit or explicit ownership of the buffer.

Return values

EFI_SUCCESS	The read request was queued if Token->Event is not NULL. The data was read correctly from the device if the Token->Event is NULL.
EFI_DEVICE_ERROR	The device reported an error while attempting to perform the read operation.
EFI_NO_MEDIA	There is no media in the device.
EFI_MEDIA_CHANGED	The MediaId is not for the current media.
EFI_BAD_BUFFER_SIZE	The BufferSize parameter is not a multiple of the intrinsic block size of the device.
EFI_INVALID_PARAMETER	The read request contains LBAs that are not valid, or the buffer is not on proper alignment.
EFI_OUT_OF_RESOURCES	The request could not be completed due to a lack of resources.

Definition at line 331 of file RamDiskBlockIo.c.

◆ RamDiskBlkIo2Reset()

EFI_STATUS EFIAPI RamDiskBlkIo2Reset	(	IN EFI_BLOCK_IO2_PROTOCOL *	This,
		IN BOOLEAN	ExtendedVerification
	)

Resets the block device hardware.

Parameters

[in]	This	The pointer of EFI_BLOCK_IO2_PROTOCOL.
[in]	ExtendedVerification	The flag about if extend verificate.

Return values

EFI_SUCCESS	The device was reset.
EFI_DEVICE_ERROR	The block device is not functioning correctly and could not be reset.

Definition at line 288 of file RamDiskBlockIo.c.

◆ RamDiskBlkIo2WriteBlocksEx()

EFI_STATUS EFIAPI RamDiskBlkIo2WriteBlocksEx	(	IN EFI_BLOCK_IO2_PROTOCOL *	This,
		IN UINT32	MediaId,
		IN EFI_LBA	Lba,
		IN OUT EFI_BLOCK_IO2_TOKEN *	Token,
		IN UINTN	BufferSize,
		IN VOID *	Buffer
	)

Writes a specified number of blocks to the device.

Parameters

[in]	This	Indicates a pointer to the calling context.
[in]	MediaId	The media ID that the write request is for.
[in]	Lba	The starting logical block address to be written. The caller is responsible for writing to only legitimate locations.
[in,out]	Token	A pointer to the token associated with the transaction.
[in]	BufferSize	The size in bytes of Buffer. This must be a multiple of the intrinsic block size of the device.
[in]	Buffer	A pointer to the source buffer for the data.

Return values

EFI_SUCCESS	The write request was queued if Event is not NULL. The data was written correctly to the device if the Event is NULL.
EFI_WRITE_PROTECTED	The device cannot be written to.
EFI_NO_MEDIA	There is no media in the device.
EFI_MEDIA_CHANGED	The MediaId is not for the current media.
EFI_DEVICE_ERROR	The device reported an error while attempting to perform the write operation.
EFI_BAD_BUFFER_SIZE	The BufferSize parameter is not a multiple of the intrinsic block size of the device.
EFI_INVALID_PARAMETER	The write request contains LBAs that are not valid, or the buffer is not on proper alignment.
EFI_OUT_OF_RESOURCES	The request could not be completed due to a lack of resources.

Definition at line 401 of file RamDiskBlockIo.c.

◆ RamDiskBlkIoFlushBlocks()

EFI_STATUS EFIAPI RamDiskBlkIoFlushBlocks ( IN EFI_BLOCK_IO_PROTOCOL * This )

Flush the Block Device.

Parameters

[in] This Indicates a pointer to the calling context.

Return values

EFI_SUCCESS	All outstanding data was written to the device.
EFI_DEVICE_ERROR	The device reported an error while writting back the data
EFI_NO_MEDIA	There is no media in the device.

Definition at line 268 of file RamDiskBlockIo.c.

◆ RamDiskBlkIoReadBlocks()

EFI_STATUS EFIAPI RamDiskBlkIoReadBlocks	(	IN EFI_BLOCK_IO_PROTOCOL *	This,
		IN UINT32	MediaId,
		IN EFI_LBA	Lba,
		IN UINTN	BufferSize,
		OUT VOID *	Buffer
	)

Read BufferSize bytes from Lba into Buffer.

Parameters

[in]	This	Indicates a pointer to the calling context.
[in]	MediaId	Id of the media, changes every time the media is replaced.
[in]	Lba	The starting Logical Block Address to read from.
[in]	BufferSize	Size of Buffer, must be a multiple of device block size.
[out]	Buffer	A pointer to the destination buffer for the data. The caller is responsible for either having implicit or explicit ownership of the buffer.

Return values

EFI_SUCCESS	The data was read correctly from the device.
EFI_DEVICE_ERROR	The device reported an error while performing the read.
EFI_NO_MEDIA	There is no media in the device.
EFI_MEDIA_CHANGED	The MediaId does not matched the current device.
EFI_BAD_BUFFER_SIZE	The Buffer was not a multiple of the block size of the device.
EFI_INVALID_PARAMETER	The read request contains LBAs that are not valid, or the buffer is not on proper alignment.

Definition at line 130 of file RamDiskBlockIo.c.

◆ RamDiskBlkIoReset()

EFI_STATUS EFIAPI RamDiskBlkIoReset	(	IN EFI_BLOCK_IO_PROTOCOL *	This,
		IN BOOLEAN	ExtendedVerification
	)

Reset the Block Device.

Parameters

[in]	This	Indicates a pointer to the calling context.
[in]	ExtendedVerification	Driver may perform diagnostics on reset.

Return values

EFI_SUCCESS	The device was reset.
EFI_DEVICE_ERROR	The device is not functioning properly and could not be reset.

Reset the Block Device.

Parameters

This	Indicates a pointer to the calling context.
ExtendedVerification	Driver may perform diagnostics on reset.

Return values

EFI_SUCCESS	The device was reset.
EFI_DEVICE_ERROR	The device is not functioning properly and could not be reset.

Definition at line 95 of file RamDiskBlockIo.c.

◆ RamDiskBlkIoWriteBlocks()

EFI_STATUS EFIAPI RamDiskBlkIoWriteBlocks	(	IN EFI_BLOCK_IO_PROTOCOL *	This,
		IN UINT32	MediaId,
		IN EFI_LBA	Lba,
		IN UINTN	BufferSize,
		IN VOID *	Buffer
	)

Write BufferSize bytes from Lba into Buffer.

Parameters

[in]	This	Indicates a pointer to the calling context.
[in]	MediaId	The media ID that the write request is for.
[in]	Lba	The starting logical block address to be written. The caller is responsible for writing to only legitimate locations.
[in]	BufferSize	Size of Buffer, must be a multiple of device block size.
[in]	Buffer	A pointer to the source buffer for the data.

Return values

EFI_SUCCESS	The data was written correctly to the device.
EFI_WRITE_PROTECTED	The device can not be written to.
EFI_DEVICE_ERROR	The device reported an error while performing the write.
EFI_NO_MEDIA	There is no media in the device.
EFI_MEDIA_CHNAGED	The MediaId does not matched the current device.
EFI_BAD_BUFFER_SIZE	The Buffer was not a multiple of the block size of the device.
EFI_INVALID_PARAMETER	The write request contains LBAs that are not valid, or the buffer is not on proper alignment.

Definition at line 204 of file RamDiskBlockIo.c.

◆ RamDiskCallback()

EFI_STATUS EFIAPI RamDiskCallback	(	IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *	This,
		IN EFI_BROWSER_ACTION	Action,
		IN EFI_QUESTION_ID	QuestionId,
		IN UINT8	Type,
		IN EFI_IFR_TYPE_VALUE *	Value,
		OUT EFI_BROWSER_ACTION_REQUEST *	ActionRequest
	)

This function processes the results of changes in configuration.

Parameters

[in]	This	Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
[in]	Action	Specifies the type of action taken by the browser.
[in]	QuestionId	A unique value which is sent to the original exporting driver so that it can identify the type of data to expect.
[in]	Type	The type of value for the question.
[in]	Value	A pointer to the data being sent to the original exporting driver.
[out]	ActionRequest	On return, points to the action requested by the callback function.

Return values

EFI_SUCCESS	The callback successfully handled the action.
EFI_OUT_OF_RESOURCES	Not enough storage is available to hold the variable and its data.
EFI_DEVICE_ERROR	The variable could not be saved.
EFI_UNSUPPORTED	The specified Action is not supported by the callback.

Definition at line 583 of file RamDiskImpl.c.

◆ RamDiskExtractConfig()

EFI_STATUS EFIAPI RamDiskExtractConfig	(	IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *	This,
		IN CONST EFI_STRING	Request,
		OUT EFI_STRING *	Progress,
		OUT EFI_STRING *	Results
	)

This function allows a caller to extract the current configuration for one or more named elements from the target driver.

Parameters

[in]	This	Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
[in]	Request	A null-terminated Unicode string in <ConfigRequest> format.
[out]	Progress	On return, points to a character in the Request string. Points to the string's null terminator if request was successful. Points to the most recent '&' before the first failing name/value pair (or the beginning of the string if the failure is in the first name/value pair) if the request was not successful.
[out]	Results	A null-terminated Unicode string in <ConfigAltResp> format which has all values filled in for the names in the Request string. String to be allocated by the called function.

Return values

EFI_SUCCESS	The Results is filled with the requested values.
EFI_OUT_OF_RESOURCES	Not enough memory to store the results.
EFI_INVALID_PARAMETER	Request is illegal syntax, or unknown name.
EFI_NOT_FOUND	Routing data doesn't match any storage in this driver.

Definition at line 226 of file RamDiskImpl.c.

◆ RamDiskInitBlockIo()

VOID RamDiskInitBlockIo ( IN RAM_DISK_PRIVATE_DATA * PrivateData )

Initialize the BlockIO protocol of a RAM disk device.

Parameters

[in] PrivateData Points to RAM disk private data.

Initialize the BlockIO & BlockIO2 protocol of a RAM disk device.

Parameters

[in] PrivateData Points to RAM disk private data.

Definition at line 43 of file RamDiskBlockIo.c.

◆ RamDiskPublishNfit()

EFI_STATUS RamDiskPublishNfit ( IN RAM_DISK_PRIVATE_DATA * PrivateData )

Publish the RAM disk NVDIMM Firmware Interface Table (NFIT) to the ACPI table.

Parameters

[in] PrivateData Points to RAM disk private data.

Return values

EFI_SUCCESS	The RAM disk NFIT has been published.
others	The RAM disk NFIT has not been published.

Definition at line 128 of file RamDiskProtocol.c.

◆ RamDiskRegister()

EFI_STATUS EFIAPI RamDiskRegister	(	IN UINT64	RamDiskBase,
		IN UINT64	RamDiskSize,
		IN EFI_GUID *	RamDiskType,
		IN EFI_DEVICE_PATH *ParentDevicePath	OPTIONAL,
		OUT EFI_DEVICE_PATH_PROTOCOL **	DevicePath
	)

Register a RAM disk with specified address, size and type.

Parameters

[in]	RamDiskBase	The base address of registered RAM disk.
[in]	RamDiskSize	The size of registered RAM disk.
[in]	RamDiskType	The type of registered RAM disk. The GUID can be any of the values defined in section 9.3.6.9, or a vendor defined GUID.
[in]	ParentDevicePath	Pointer to the parent device path. If there is no parent device path then ParentDevicePath is NULL.
[out]	DevicePath	On return, points to a pointer to the device path of the RAM disk device. If ParentDevicePath is not NULL, the returned DevicePath is created by appending a RAM disk node to the parent device path. If ParentDevicePath is NULL, the returned DevicePath is a RAM disk device path without appending. This function is responsible for allocating the buffer DevicePath with the boot service AllocatePool().

Return values

EFI_SUCCESS	The RAM disk is registered successfully.
EFI_INVALID_PARAMETER	DevicePath or RamDiskType is NULL. RamDiskSize is 0.
EFI_ALREADY_STARTED	A Device Path Protocol instance to be created is already present in the handle database.
EFI_OUT_OF_RESOURCES	The RAM disk register operation fails due to resource limitation.

Definition at line 593 of file RamDiskProtocol.c.

◆ RamDiskRouteConfig()

EFI_STATUS EFIAPI RamDiskRouteConfig	(	IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *	This,
		IN CONST EFI_STRING	Configuration,
		OUT EFI_STRING *	Progress
	)

This function processes the results of changes in configuration.

Parameters

[in]	This	Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
[in]	Configuration	A null-terminated Unicode string in <ConfigResp> format.
[out]	Progress	A pointer to a string filled in with the offset of the most recent '&' before the first failing name/value pair (or the beginning of the string if the failure is in the first name/value pair) or the terminating NULL if all was successful.

Return values

EFI_SUCCESS	The Results is processed successfully.
EFI_INVALID_PARAMETER	Configuration is NULL.
EFI_NOT_FOUND	Routing data doesn't match any storage in this driver.

Definition at line 261 of file RamDiskImpl.c.

◆ RamDiskUnregister()

EFI_STATUS EFIAPI RamDiskUnregister ( IN EFI_DEVICE_PATH_PROTOCOL * DevicePath )

Unregister a RAM disk specified by DevicePath.

Parameters

[in] DevicePath A pointer to the device path that describes a RAM Disk device.

Return values

EFI_SUCCESS	The RAM disk is unregistered successfully.
EFI_INVALID_PARAMETER	DevicePath is NULL.
EFI_UNSUPPORTED	The device specified by DevicePath is not a valid ramdisk device path and not supported by the driver.
EFI_NOT_FOUND	The RAM disk pointed by DevicePath doesn't exist.

Definition at line 762 of file RamDiskProtocol.c.

◆ UninstallRamDiskConfigForm()

VOID UninstallRamDiskConfigForm ( IN OUT RAM_DISK_CONFIG_PRIVATE_DATA * ConfigPrivateData )

This function removes RAM disk configuration Form.

Parameters

[in,out] ConfigPrivateData Points to RAM disk configuration private data.

Definition at line 122 of file RamDiskImpl.c.

◆ UnregisterAllRamDisks()

VOID UnregisterAllRamDisks ( VOID )

Unregister all registered RAM disks.

Definition at line 157 of file RamDiskImpl.c.

Variable Documentation

◆ mAcpiSdtProtocol

EFI_ACPI_SDT_PROTOCOL* mAcpiSdtProtocol

extern

Definition at line 35 of file RamDiskDriver.c.

◆ mAcpiTableProtocol

EFI_ACPI_TABLE_PROTOCOL* mAcpiTableProtocol

extern

Definition at line 34 of file RamDiskDriver.c.

◆ mRamDiskConfigPrivateDataTemplate

RAM_DISK_CONFIG_PRIVATE_DATA mRamDiskConfigPrivateDataTemplate

extern

Definition at line 15 of file RamDiskImpl.c.

◆ RamDiskHiiBin

UINT8 RamDiskHiiBin[]

extern

RAM disk HII-related definitions and declarations

◆ RegisteredRamDisks

LIST_ENTRY RegisteredRamDisks

extern

Definition at line 29 of file RamDiskDriver.c.

Data Structures

Macros

Typedefs

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ RAM_DISK_CONFIG_PRIVATE_DATA_SIGNATURE

◆ RAM_DISK_CONFIG_PRIVATE_FROM_THIS

◆ RAM_DISK_DEFAULT_BLOCK_SIZE

◆ RAM_DISK_PRIVATE_DATA_SIGNATURE

◆ RAM_DISK_PRIVATE_FROM_BLKIO

◆ RAM_DISK_PRIVATE_FROM_BLKIO2

◆ RAM_DISK_PRIVATE_FROM_THIS

Enumeration Type Documentation

◆ _RAM_DISK_CREATE_METHOD

Function Documentation

◆ FileInfo()

◆ InstallRamDiskConfigForm()

◆ RamDiskBlkIo2FlushBlocksEx()

◆ RamDiskBlkIo2ReadBlocksEx()

◆ RamDiskBlkIo2Reset()

◆ RamDiskBlkIo2WriteBlocksEx()

◆ RamDiskBlkIoFlushBlocks()

◆ RamDiskBlkIoReadBlocks()

◆ RamDiskBlkIoReset()

◆ RamDiskBlkIoWriteBlocks()

◆ RamDiskCallback()

◆ RamDiskExtractConfig()

◆ RamDiskInitBlockIo()

◆ RamDiskPublishNfit()

◆ RamDiskRegister()

◆ RamDiskRouteConfig()

◆ RamDiskUnregister()

◆ UninstallRamDiskConfigForm()

◆ UnregisterAllRamDisks()

Variable Documentation

◆ mAcpiSdtProtocol

◆ mAcpiTableProtocol

◆ mRamDiskConfigPrivateDataTemplate

◆ RamDiskHiiBin

◆ RegisteredRamDisks